1
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Tian D, Yan Z, Schmid B, Kattge J, Fang J, Stocker BD. Environmental versus phylogenetic controls on leaf nitrogen and phosphorous concentrations in vascular plants. Nat Commun 2024; 15:5346. [PMID: 38914561 PMCID: PMC11196693 DOI: 10.1038/s41467-024-49665-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 06/15/2024] [Indexed: 06/26/2024] Open
Abstract
Global patterns of leaf nitrogen (N) and phosphorus (P) stoichiometry have been interpreted as reflecting phenotypic plasticity in response to the environment, or as an overriding effect of the distribution of species growing in their biogeochemical niches. Here, we balance these contrasting views. We compile a global dataset of 36,413 paired observations of leaf N and P concentrations, taxonomy and 45 environmental covariates, covering 7,549 sites and 3,700 species, to investigate how species identity and environmental variables control variations in mass-based leaf N and P concentrations, and the N:P ratio. We find within-species variation contributes around half of the total variation, with 29%, 31%, and 22% of leaf N, P, and N:P variation, respectively, explained by environmental variables. Within-species plasticity along environmental gradients varies across species and is highest for leaf N:P and lowest for leaf N. We identified effects of environmental variables on within-species variation using random forest models, whereas effects were largely missed by widely used linear mixed-effect models. Our analysis demonstrates a substantial influence of the environment in driving plastic responses of leaf N, P, and N:P within species, which challenges reports of a fixed biogeochemical niche and the overriding importance of species distributions in shaping global patterns of leaf N and P.
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Affiliation(s)
- Di Tian
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing, 100083, China.
- Institute of Agricultural Sciences, Department of Environmental Systems Science, ETH, Universitätsstrasse 2, 8092, Zürich, Switzerland.
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland.
| | - Zhengbing Yan
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Bernhard Schmid
- Department of Geography, Remote Sensing Laboratories, University of Zürich, 8006, Zürich, Switzerland
- Institute of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Jens Kattge
- Max-Planck-Institute for Biogeochemistry, Hans-Knöll Street 10, 07745, Jena, Germany
- iDiv - German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Puschstraße 4, 04103, Leipzig, Germany
| | - Jingyun Fang
- Institute of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Benjamin D Stocker
- Institute of Agricultural Sciences, Department of Environmental Systems Science, ETH, Universitätsstrasse 2, 8092, Zürich, Switzerland.
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland.
- Institute of Geography, University of Bern, Hallerstrasse 12, 3012, Bern, Switzerland.
- Oeschger Centre for Climate Change Research, University of Bern, Falkenplatz 16, 3012, Bern, Switzerland.
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Zhao W, Ren TH, Huang XY, Xu Z, Zhou YZ, Yin CL, Zhao R, Liu SB, Ning TY, Li G. Leaf shape, planting density, and nitrogen application affect soybean yield by changing direct and diffuse light distribution in the canopy. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 204:108071. [PMID: 37922647 DOI: 10.1016/j.plaphy.2023.108071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 11/07/2023]
Abstract
When attempting to maximize the crop yield from field-grown soybean (Glycine max (L.) Merr.) by means of improving the light conditions for photosynthesis in the canopy, it is crucial to find the optimal planting density and nitrogen application rate. The soybean plants that were the subject of our experiment were cultivated in N-dense mutual pairs, and included two cultivars with different leaf shapes; one cultivar sported ovate leaves (O-type) and the other lanceolate leaves (L-type). We analyzed the results quantitatively to determine the amount of spatial variation in light distribution and photosynthetic efficiency across the canopy, and to gauge the effect of the experimental parameters on the yield as well as the photosynthetic light and nitrogen use efficiency of the crop. Results indicate that the different leaf shapes were responsible for significant disparities between the photosynthetic utilization of direct and diffuse light. As the nitrogen fertilizer rate and the planting density increased, the soybean plants responded by adjusting leaf morphology in order to maximize the canopy apparent photosynthetic light use efficiency, which in turn affected the leaf nitrogen distribution in the canopy. Despite the fact that the light interception rate of the canopy of the L-type cultivar was lower than that of the canopy of the O-type cultivar, we found its canopy apparent photosynthetic nitrogen and light use efficiency were higher. It was interesting to note, however, that the nitrogen and light use efficiency contributions associated with exposure to diffuse light were greater for the latter than for the former.
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Affiliation(s)
- Wei Zhao
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Ting-Hu Ren
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Xin-Yang Huang
- Jining Academy of Agricultural Sciences, Jining, Shandong, 272075, PR China
| | - Zheng Xu
- Hansha Scientific Instruments Limited, Tai'an, Shandong, 271099, PR China
| | - Yan-Zheng Zhou
- Jining Academy of Agricultural Sciences, Jining, Shandong, 272075, PR China
| | - Cheng-Long Yin
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Rui Zhao
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Sheng-Bo Liu
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Tang-Yuan Ning
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China.
| | - Geng Li
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China.
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3
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Wang W, Ji D, Peng S, Loladze I, Harrison MT, Davies WJ, Smith P, Xia L, Wang B, Liu K, Zhu K, Zhang W, Ouyang L, Liu L, Gu J, Zhang H, Yang J, Wang F. Eco-physiology and environmental impacts of newly developed rice genotypes for improved yield and nitrogen use efficiency coordinately. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165294. [PMID: 37414171 DOI: 10.1016/j.scitotenv.2023.165294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/30/2023] [Accepted: 07/01/2023] [Indexed: 07/08/2023]
Abstract
Significant advancements have been made in understanding the genetic regulation of nitrogen use efficiency (NUE) and identifying crucial NUE genes in rice. However, the development of rice genotypes that simultaneously exhibit high yield and NUE has lagged behind these theoretical advancements. The grain yield, NUE, and greenhouse gas (GHG) emissions of newly-bred rice genotypes under reduced nitrogen application remain largely unknown. To address this knowledge gap, field experiments were conducted, involving 80 indica (14 to 19 rice genotypes each year in Wuxue, Hubei) and 12 japonica (8 to 12 rice genotypes each year in Yangzhou, Jiangsu). Yield, NUE, agronomy, and soil parameters were assessed, and climate data were recorded. The experiments aimed to assess genotypic variations in yield and NUE among these genotypes and to investigate the eco-physiological basis and environmental impacts of coordinating high yield and high NUE. The results showed significant variations in yield and NUE among the genotypes, with 47 genotypes classified as moderate-high yield with high NUE (MHY_HNUE). These genotypes demonstrated the higher yields and NUE levels, with 9.6 t ha-1, 54.4 kg kg-1, 108.1 kg kg-1, and 64 % for yield, NUE for grain and biomass production, and N harvest index, respectively. Nitrogen uptake and tissue concentration were key drivers of the relationship between yield and NUE, particularly N uptake at heading and N concentrations in both straw and grain at maturity. Increase in pre-anthesis temperature consistently lowered yield and NUE. Genotypes within the MHY_HNUE group exhibited higher methane emissions but lower nitrous oxide emissions compared to those in the low to middle yield and NUE group, resulting in a 12.8 % reduction in the yield-scaled greenhouse gas balance. In conclusion, prioritizing crop breeding efforts on yield and resource use efficiency, as well as developing genotypes resilient to high temperatures with lower GHGs, can mitigate planetary warming.
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Affiliation(s)
- Weilu Wang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Dongling Ji
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Shaobing Peng
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Irakli Loladze
- Bryan College of Health Sciences, Bryan Medical Center, Lincoln, NE 68506, USA
| | - Matthew Tom Harrison
- Tasmanian Institute of Agriculture, University of Tasmania, Newnham Drive, Launceston, Tasmania 7248, Australia
| | | | - Pete Smith
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3UU, UK
| | - Longlong Xia
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Bin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ke Liu
- Tasmanian Institute of Agriculture, University of Tasmania, Newnham Drive, Launceston, Tasmania 7248, Australia
| | - Kuanyu Zhu
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Wen Zhang
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100071, China
| | - Linhan Ouyang
- College of Economics and Management, Department of Management Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Lijun Liu
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Junfei Gu
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Hao Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Jianchang Yang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
| | - Fei Wang
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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Ishida A, Yamaji K, Nakano T, Ladpala P, Popradit A, Yoshimura K, Saiki ST, Maeda T, Yoshimura J, Koyama K, Diloksumpun S, Marod D. Comparative physiology of canopy tree leaves in evergreen and deciduous forests in lowland Thailand. Sci Data 2023; 10:601. [PMID: 37684226 PMCID: PMC10491629 DOI: 10.1038/s41597-023-02468-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 08/14/2023] [Indexed: 09/10/2023] Open
Abstract
The typical seasonally dry forests in Southeast Asia are the mixed deciduous forest (MDF), dry dipterocarp (deciduous) forest (DDF), and dry evergreen forest (DEF). We obtained 21 physiological traits in the top/sunlit leaves of 107, 65 and 51 tree species in MDF, DEF and DDF, respectively. Approximately 70%, 95% and 95% of canopy tree species which consist of MDF, DEF and DDF are sampled, respectively. Light-saturated photosynthetic rates (Asat) exhibit a positive correlation with foliar nitrogen (N) and phosphorus (P) on leaf mass and area bases across tree species. Decreased leaf mass-based P reduces the positive slope of the mass-based N and Asat relationship across species and habitats. The differences in nutrient and water use and leaf habits are well matched to the variation in soil properties among the forest types, highlighting the reliability of this comprehensive database for revealing the mechanism of niche segregation based on edaphic factors.
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Affiliation(s)
- Atsushi Ishida
- Center for Ecological Research, Kyoto University, Otsu, Shiga, 520-2113, Japan.
| | - Keiko Yamaji
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-0006, Japan
| | - Takashi Nakano
- Yamanashi Mount Fuji Research Institute, Kami-Yoshida, Fuji-Yoshida, Yamanashi, 403-0005, Japan
| | - Phanumard Ladpala
- Department of National Parks, Wildlife and Plant Conservation, Chatuchak, Bangkok, 10900, Thailand
| | - Ananya Popradit
- College of Innovation Management, Valaya Alongkorn University under the Royal Patronage, Klongluang, Pathum Thani, 13180, Thailand
| | - Kenichi Yoshimura
- Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, 997-8555, Japan
| | - Shin-Taro Saiki
- Department of Forest Ecology, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki, 305-8687, Japan
| | - Takahisa Maeda
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8569, Japan
| | - Jin Yoshimura
- Institute of Tropical Medicine, Nagasaki University, Sakamoto, Nagasaki, Nagasaki, 852-8523, Japan
- Faculty of Science, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
- The University Museum, The University of Tokyo, Hongo, Bunkyo, Tokyo, 113-0033, Japan
| | - Kohei Koyama
- Asahikawa campus, Hokkaido University of Education, Asahikawa, Hokkaido, 070-8621, Japan
| | - Sapit Diloksumpun
- Faculty of Forestry, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand
| | - Dokrak Marod
- Faculty of Forestry, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand
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5
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Liu J, Zhang K, Bi J, Yu X, Luo L, Hu L. Mesophyll conductance and N allocation co-explained the variation in photosynthesis in two canola genotypes under contrasting nitrogen supply. FRONTIERS IN PLANT SCIENCE 2023; 14:1171331. [PMID: 37223789 PMCID: PMC10202220 DOI: 10.3389/fpls.2023.1171331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/13/2023] [Indexed: 05/25/2023]
Abstract
The application of nitrogen fertilizer within a normal range has been found to increase the leaf nitrogen content and photosynthetic rate of canola plants (Brassica napus L.). Despite numerous studies on the separate effects of CO2 diffusion limitation and nitrogen allocation trade-off on photosynthetic rate, few have examined both these factors in relation to the photosynthetic rate of canola. In this study, two genotypes of canola with varying leaf nitrogen content were analyzed to determine the impact of nitrogen supply on leaf photosynthesis, mesophyll conductance, and nitrogen partitioning. The results showed that the CO2 assimilation rate (A), mesophyll conductance (g m), and photosynthetic nitrogen content (N psn) increased with an increase in nitrogen supply in both genotypes. The relationship between nitrogen content and A followed a linear-plateau regression, while A had linear relationships with both photosynthetic nitrogen content and g m, indicating that the key to enhancing A is increasing the distribution of leaf nitrogen into the photosynthetic apparatus and g m, rather than just increasing nitrogen content. Under high nitrogen treatment, the genotype (QZ) with high nitrogen content had 50.7% more nitrogen than the other genotype (ZY21), but had similar A, which was primarily due to ZY21's higher photosynthetic nitrogen distribution ratio and stomatal conductance (g sw). On the other hand, QZ showed a higher A than ZY21 under low nitrogen treatment as QZ had higher N psn and g m compared to ZY21. Our results indicate that, in selecting high PNUE rapeseed varieties, it is important to consider the higher photosynthetic nitrogen distribution ratio and CO2 diffusion conductance.
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Affiliation(s)
- Jiahuan Liu
- Ministry of Agriculture and Rural Affairs (MARA) Key Laboratory of Crop Ecophysiology Farming System in the Middle Reaches of the Yangtze River, College of Plant Science Technology, Huazhong Agricultural University, Wuhan, China
| | | | - Junguo Bi
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Xinqiao Yu
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Lijun Luo
- Shanghai Agrobiological Gene Center, Shanghai, China
| | - Liyong Hu
- Ministry of Agriculture and Rural Affairs (MARA) Key Laboratory of Crop Ecophysiology Farming System in the Middle Reaches of the Yangtze River, College of Plant Science Technology, Huazhong Agricultural University, Wuhan, China
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Estiarte M, Campioli M, Mayol M, Penuelas J. Variability and limits of nitrogen and phosphorus resorption during foliar senescence. PLANT COMMUNICATIONS 2023; 4:100503. [PMID: 36514281 PMCID: PMC10030369 DOI: 10.1016/j.xplc.2022.100503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/17/2022] [Accepted: 12/08/2022] [Indexed: 05/04/2023]
Abstract
Foliar nutrient resorption (NuR) plays a key role in ecosystem functioning and plant nutrient economy. Most of this recycling occurs during the senescence of leaves and is actively addressed by cells. Here, we discuss the importance of cell biochemistry, physiology, and subcellular anatomy to condition the outcome of NuR at the cellular level and to explain the existence of limits to NuR. Nutrients are transferred from the leaf in simple metabolites that can be loaded into the phloem. Proteolysis is the main mechanism for mobilization of N, whereas P mobilization requires the involvement of different catabolic pathways, making the dynamics of P in leaves more variable than those of N before, during, and after foliar senescence. The biochemistry and fate of organelles during senescence impose constraints that limit NuR. The efficiency of NuR decreases, especially in evergreen species, as soil fertility increases, which is attributed to the relative costs of nutrient acquisition from soil decreasing with increasing soil nutrient availability, while the energetic costs of NuR from senescing leaves remain constant. NuR is genetically determined, with substantial interspecific variability, and is environmentally regulated in space and time, with nutrient availability being a key driver of intraspecific variability in NuR.
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Affiliation(s)
- Marc Estiarte
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, 08193 Bellaterra, Catalonia, Spain; CREAF, 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Matteo Campioli
- Research Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, 2610 Wilrijk, Belgium
| | - Maria Mayol
- CREAF, 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Josep Penuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, 08193 Bellaterra, Catalonia, Spain; CREAF, 08193 Cerdanyola del Vallès, Catalonia, Spain.
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Cun Z, Wu HM, Zhang JY, Shuang SP, Hong J, An TX, Chen JW. High nitrogen inhibits biomass and saponins accumulation in a medicinal plant Panax notoginseng. PeerJ 2023; 11:e14933. [PMID: 36846464 PMCID: PMC9951802 DOI: 10.7717/peerj.14933] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/31/2023] [Indexed: 02/23/2023] Open
Abstract
Nitrogen (N) is an important macronutrient and is comprehensively involved in the synthesis of secondary metabolites. However, the interaction between N supply and crop yield and the accumulation of effective constituents in an N-sensitive medicinal plant Panax notoginseng (Burkill) F. H. Chen is not completely known. Morphological traits, N use and allocation, photosynthetic capacity and saponins accumulation were evaluated in two- and three-year-old P. notoginseng grown under different N regimes. The number and length of fibrous root, total root length and root volume were reduced with the increase of N supply. The accumulation of leaf and stem biomass (above-ground) were enhanced with increasing N supply, and LN-grown plants had the lowest root biomass. Above-ground biomass was closely correlated with N content, and the relationship between root biomass and N content was negatives in P. notoginseng (r = -0.92). N use efficiency-related parameters, NUE (N use efficiency, etc.), NC (N content in carboxylation system component) and P n (the net photosynthetic rate) were reduced in HN-grown P. notoginseng. SLN (specific leaf N), Chl (chlorophyll), NL (N content in light capture component) increased with an increase in N application. Interestingly, root biomass was positively correlated with NUE, yield and P n. Above-ground biomass was close negatively correlated with photosynthetic N use efficiency (PNUE). Saponins content was positively correlated with NUE and P n. Additionally, HN improved the root yield of per plant compared with LN, but reduced the accumulation of saponins, and the lowest yield of saponins per unit area (35.71 kg·hm-2) was recorded in HN-grown plants. HN-grown medicinal plants could inhibit the accumulation of root biomass by reducing N use and photosynthetic capacity, and HN-induced decrease in the accumulation of saponins (C-containing metabolites) might be closely related to the decline in N efficiency and photosynthetic capacity. Overall, N excess reduces the yield of root and C-containing secondary metabolites (active ingredient) in N-sensitive medicinal species such as P. notoginseng.
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Affiliation(s)
- Zhu Cun
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China,National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China,Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Hong-Min Wu
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China,National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China,Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Jin-Yan Zhang
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China,National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China,Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Sheng-Pu Shuang
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China,National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China,Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Jie Hong
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China,National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China,Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Tong-Xin An
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Jun-Wen Chen
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China,National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China,Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, China
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8
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Zama N, Kirkman K, Mkhize N, Tedder M, Magadlela A. Soil Acidification in Nutrient-Enriched Soils Reduces the Growth, Nutrient Concentrations, and Nitrogen-Use Efficiencies of Vachellia sieberiana (DC.) Kyal. & Boatwr Saplings. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11243564. [PMID: 36559678 PMCID: PMC9781205 DOI: 10.3390/plants11243564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/28/2022] [Accepted: 12/13/2022] [Indexed: 06/12/2023]
Abstract
Nitrogen (N) and phosphorus (P) nutrient enrichment is important for grasslands. This study aimed to determine how soils enriched with N and P influenced soil concentration correlations and affected the growth kinetics, mineral nutrition, and nitrogen-use efficiencies of Vachellia sieberiana grown in a greenhouse experiment. The soils used as the growth substrate were analysed and showed extreme acidity (low soil pH, 3.9). Nitrogen-enriched soils were more acidic than P-enriched soils. Exchangeable acidity was strongly negatively correlated with an increase in soil pH, with soil pH between 3.9 and 4.1 units showing the strongest decline. Plant saplings showed increased root biomass, shoot biomass, total biomass, and plant N and P concentrations when grown in soils with high soil P concentrations. Extreme soil acidification in N-enriched soil was one of the main factors causing P unavailability, decreasing sapling growth. Extreme soil acidification increased concentrations of toxic heavy metals, such as Al which may be alleviated by adding lime to the extremely acidic soils. Research implications suggest that soil pH is an important chemical property of the soil and plays a significant role in legume plant growth. Legume species that are unable to tolerate acidic soils may acquire different strategies for growth and functioning.
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Affiliation(s)
- Naledi Zama
- School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa
- Agricultural Research Council, Animal Production Institute, Private Bag X02, Irene 0062, South Africa
| | - Kevin Kirkman
- School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa
| | - Ntuthuko Mkhize
- School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa
- Agricultural Research Council, Animal Production Institute, Private Bag X02, Irene 0062, South Africa
| | - Michelle Tedder
- School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, Scottsville 3209, South Africa
| | - Anathi Magadlela
- School of Life Sciences, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
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Tanabe R, Miyazawa SI, Kitade O, Oikawa S. Effect of symbiotic N2 fixation on leaf protein contents, protein degradation and nitrogen resorption during leaf senescence in temperate deciduous woody species. Oecologia 2022; 200:79-87. [DOI: 10.1007/s00442-022-05264-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 09/10/2022] [Indexed: 11/30/2022]
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10
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Huang G, Peng S, Li Y. Variation of photosynthesis during plant evolution and domestication: implications for improving crop photosynthesis. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:4886-4896. [PMID: 35436322 DOI: 10.1093/jxb/erac169] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/16/2022] [Indexed: 06/14/2023]
Abstract
Studies investigating the mechanisms underlying the variation of photosynthesis along plant phylogeny and especially during domestication are of great importance, and may provide new insights to further improve crop photosynthesis. In the present study, we compiled a database including 542 sets of data of leaf gas exchange parameters and leaf structural and chemical traits in ferns and fern allies, gymnosperms, non-crop angiosperms, and crops. We found that photosynthesis was dramatically improved from ferns and fern allies to non-crop angiosperms, and further increased in crops. The improvement of photosynthesis during phylogeny and domestication was related to increases in carbon dioxide diffusional capacities and, to a lesser extent, biochemical capacity. Cell wall thickness rather than chloroplast surface area facing intercellular airspaces drives the variation of mesophyll conductance. The variation of the maximum carboxylation rate was not related to leaf nitrogen content. The slope of the relationship between mass-based photosynthesis and nitrogen was lower in crops than in non-crop angiosperms. These findings suggest that the manipulation of cell wall thickness is the most promising approach to further improve crop photosynthesis, and that an increase of leaf nitrogen will be less efficient in improving photosynthesis in crops than in non-crop angiosperms.
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Affiliation(s)
- Guanjun Huang
- National Key Laboratory of Crop Genetic Improvement, Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shaobing Peng
- National Key Laboratory of Crop Genetic Improvement, Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yong Li
- National Key Laboratory of Crop Genetic Improvement, Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
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Ye M, Zhang Z, Huang G, Li Y. Leaf Photosynthesis and Its Temperature Response Are Different between Growth Stages and N Supplies in Rice Plants. Int J Mol Sci 2022; 23:ijms23073885. [PMID: 35409242 PMCID: PMC8999464 DOI: 10.3390/ijms23073885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/18/2022] [Accepted: 03/29/2022] [Indexed: 12/27/2022] Open
Abstract
Leaf photosynthesis is highly correlated with CO2-diffusion capacities, which are determined by both leaf anatomical traits and environmental stimuli. In the present study, leaf photosynthetic rate (A), stomatal conductance (gs), mesophyll conductance (gm) and the related leaf anatomical traits were studied on rice plants at two growth stages and with two different N supplies, and the response of photosynthesis to temperature (T) was also studied. We found that gm was significantly higher at mid-tillering stage and at high N treatment. The larger gm was related to a larger chloroplast surface area facing intercellular air spaces and a thinner cell wall in comparison with booting stage and zero N treatment. At mid-tillering stage and at high N treatment, gm showed a stronger temperature response. The modelling of the gm-T relationships suggested that, in comparison with booting stage and zero N treatment, the stronger temperature response of gm was related to the higher activation energy of the membrane at mid-tillering stage and at high N treatment. The findings in the present study can enhance our knowledge on the physiological and environmental determinants of photosynthesis.
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Affiliation(s)
- Miao Ye
- Ministry of Agriculture and Rural Affairs Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (M.Y.); (Z.Z.); (G.H.)
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Jiangsu Key Laboratory of Crop Cultivation and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Zhengcan Zhang
- Ministry of Agriculture and Rural Affairs Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (M.Y.); (Z.Z.); (G.H.)
| | - Guanjun Huang
- Ministry of Agriculture and Rural Affairs Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (M.Y.); (Z.Z.); (G.H.)
| | - Yong Li
- Ministry of Agriculture and Rural Affairs Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (M.Y.); (Z.Z.); (G.H.)
- Correspondence: ; Tel.: +86-27-8728-5082; Fax: +86-27-8728-8188
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12
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Yang R, Liu K, Harrison MT, Fahad S, Wang Z, Zhou M, Wang X. How Does Crop Rotation Influence Soil Moisture, Mineral Nitrogen, and Nitrogen Use Efficiency? FRONTIERS IN PLANT SCIENCE 2022; 13:854731. [PMID: 35371116 PMCID: PMC8970276 DOI: 10.3389/fpls.2022.854731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Rice-wheat (RW) cropping systems are integral to global food security. Despite being practiced for decades, Chinese RW cropping systems often suffer from low productivity and poor nitrogen use efficiency (NUE), reflecting management approaches that are not well-contextualized to region and season. Here, we develop the best management guides for N fertilizer in RW systems that are designed to help raise the productivity, NUE, and environmental sustainability of winter wheat over the long term. 2-year field experiments were conducted with four N fertilizer rates (0, 135, 180, and 225 kg N ha-1), allowing contrasts of yields, soil moisture, and NUE of wheat in RW in the humid climates zones on the Jianghan Plain. We compared RW systems with soybean/maize dryland wheat (DW) systems that are similarly endemic to China: after soybean/maize is harvested, soils are often drier compared with moisture content following rice harvest. With high seasonal N application rates (180-225 kg N ha-1), wheat crop yields increased by 24% in RW which were greater than comparable yields of wheat in DW, mainly due to greater kernels per spike in the former. Across treatments and years, N accumulation in plant tissue and kernel dry matter of DW was higher than that in RW, although mean agronomic efficiency of nitrogen (AEN) and physiological efficiency of nitrogen (PEN) of RW systems were greater. As N application rates increased from 135 to 225 kg ha-1, AEN and PEN of DW decreased but changed little for RW. Soil ammonium N was much lower than that of nitrate N; changes in NH4 + and NO3 - as a consequence of increasing N fertilization were similar for RW and DW. We recommend that tactical application of N fertilizer continue seasonally until midgrain filling for both the DW and RW systems. At fertilization rates above 180 kg N ha-1, yield responses disappeared but nitrate leaching increased significantly, suggesting declining environmental sustainability above this N ceiling threshold. Collectively, this study elicits many functional and agronomic trade-offs between yields, NUE, and environmental sustainability as a function of N fertilization. Our results show that yield and NUE responses measured as part of crop rotations are both more robust and more variable when derived over multiple seasons, management conditions, and sites.
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Affiliation(s)
- Rui Yang
- Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, China
- Agriculture College, Yangtze University, Jingzhou, China
| | - Ke Liu
- Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, China
- Agriculture College, Yangtze University, Jingzhou, China
- Tasmanian Institute of Agriculture, University of Tasmania, Burnie, TAS, Australia
| | - Matthew Tom Harrison
- Tasmanian Institute of Agriculture, University of Tasmania, Burnie, TAS, Australia
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou, China
- Department of Agronomy, The University of Haripur, Haripur, Pakistan
| | - Zhuangzhi Wang
- Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, China
- Agriculture College, Yangtze University, Jingzhou, China
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, University of Tasmania, Burnie, TAS, Australia
| | - Xiaoyan Wang
- Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, China
- Agriculture College, Yangtze University, Jingzhou, China
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Mao L, Zha R, Chen S, Zhang J, Jie L, Zha X. Mixture Compound Fertilizer and Super Absorbent Polymer Application Significantly Promoted Growth and Increased Nutrient Levels in Pinus massoniana Seedlings and Soil in Seriously Eroded Degradation Region of Southern China. FRONTIERS IN PLANT SCIENCE 2021; 12:763175. [PMID: 34950164 PMCID: PMC8688943 DOI: 10.3389/fpls.2021.763175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/27/2021] [Indexed: 06/14/2023]
Abstract
Pinus massoniana is the pioneer tree species in the red soil regions of southern China, however, the serious understory soil erosion and nutrient deficiency in that region are the main factors restricting the growth of P. massoniana. This field study examined the effects of compound fertilizer and super absorbent polymer (SAP) on the physiology, growth characteristics, biomass, soil nutrient, plant nutrient content, and nutrient uptake efficiency of 1-year-old P. massoniana seedlings for 2 years at Changting, Fujian in South China. One control (no fertilizer, CK) and fertilization treatments were established, namely, single compound fertilizer application (0.94, 1.89, and 3.56 g⋅plant-1) and mixture compound fertilizer and SAP application (0.94 + 1.01, 1.89 + 1.01, and 3.56 + 1.01 g⋅plant-1). Fertilization significantly improved the physiological performance, root collar diameter growth, height growth, biomass, and nutrient uptake of the seedlings. Compared with other fertilization treatments, the mixture compound fertilizer and SAP application significantly improved the seedling photosynthesis, which meant that the SAP had a significant effect on promoting photosynthesis. Under the mixture compound fertilizer and SAP application, the whole biomass of the seedlings was higher than that of all other treatments. Fertilization significantly increased the nitrogen (N), phosphorus (P), and potassium (K) content in the soils, leaves, stems, and roots of the seedlings, respectively. The P content was the main factor affecting growth characteristics and contributed to 58.03% of the total variation in seedling growth characteristics (P < 0.01). The N:P ratio of CK in the soils, leaves, and stems were higher than that of all the fertilization treatments, indicating that the severely eroded and degraded region had little P and required much of P. The principal component analysis indicated that the F2S (1.89 + 1.01 g) was the optimum fertilization amount and method in this experiment. These results provide a theoretical basis for the fertilization management of P. massoniana forests with severely eroded and degraded red soil regions.
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Affiliation(s)
- Lanhua Mao
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
- Key Laboratory for Subtropical Mountain Ecology (Ministry of Science and Technology and Fujian Province Funded), Fujian Normal University, Fuzhou, China
| | - Ruibo Zha
- College of Tourism, Fujian Normal University, Fuzhou, China
| | - Shifa Chen
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
- College of Tourism & Geography, Shaoguan University, Shaoguan, China
| | - Jing Zhang
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
- Key Laboratory for Subtropical Mountain Ecology (Ministry of Science and Technology and Fujian Province Funded), Fujian Normal University, Fuzhou, China
| | - Ling Jie
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
- Key Laboratory for Subtropical Mountain Ecology (Ministry of Science and Technology and Fujian Province Funded), Fujian Normal University, Fuzhou, China
| | - Xuan Zha
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
- Key Laboratory for Subtropical Mountain Ecology (Ministry of Science and Technology and Fujian Province Funded), Fujian Normal University, Fuzhou, China
- Institute of Geography, Fujian Normal University, Fuzhou, China
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14
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Xiao Y, Liu S, Zhang M, Tong F, Xu Z, Ford R, Zhang T, Shi X, Wu Z, Luo T. Plant Functional Groups Dominate Responses of Plant Adaptive Strategies to Urbanization. FRONTIERS IN PLANT SCIENCE 2021; 12:773676. [PMID: 34917107 PMCID: PMC8669269 DOI: 10.3389/fpls.2021.773676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/20/2021] [Indexed: 06/14/2023]
Abstract
Urbanization causes alteration in atmospheric, soil, and hydrological factors and substantially affects a range of morphological and physiological plant traits. Correspondingly, plants might adopt different strategies to adapt to urbanization promotion or pressure. Understanding of plant traits responding to urbanization will reveal the capacity of plant adaptation and optimize the choice of plant species in urbanization green. In this study, four different functional groups (herbs, shrubs, subcanopies, and canopies, eight plant species totally) located in urban, suburban, and rural areas were selected and eight replicated plants were selected for each species at each site. Their physiological and photosynthetic properties and heavy metal concentrations were quantified to reveal plant adaptive strategies to urbanization. The herb and shrub species had significantly higher starch and soluble sugar contents in urban than in suburban areas. Urbanization decreased the maximum photosynthetic rates and total chlorophyll contents of the canopies (Engelhardtia roxburghiana and Schima superba). The herbs (Lophatherum gracile and Alpinia chinensis) and shrubs (Ardisia quinquegona and Psychotria rubra) species in urban areas had significantly lower nitrogen (N) allocated in the cell wall and leaf δ15N values but higher heavy metal concentrations than those in suburban areas. The canopy and subcanopy (Diospyros morrisiana and Cratoxylum cochinchinense) species adapt to the urbanization via reducing resource acquisition but improving defense capacity, while the herb and shrub species improve resource acquisition to adapt to the urbanization. Our current studies indicated that functional groups affected the responses of plant adaptive strategies to the urbanization.
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Affiliation(s)
- Yihua Xiao
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Shirong Liu
- Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Manyun Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha, China
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Fuchun Tong
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Zhihong Xu
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Rebecca Ford
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Tianlin Zhang
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Xin Shi
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Zhongmin Wu
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Tushou Luo
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
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15
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Falster D, Gallagher R, Wenk EH, Wright IJ, Indiarto D, Andrew SC, Baxter C, Lawson J, Allen S, Fuchs A, Monro A, Kar F, Adams MA, Ahrens CW, Alfonzetti M, Angevin T, Apgaua DMG, Arndt S, Atkin OK, Atkinson J, Auld T, Baker A, von Balthazar M, Bean A, Blackman CJ, Bloomfield K, Bowman DMJS, Bragg J, Brodribb TJ, Buckton G, Burrows G, Caldwell E, Camac J, Carpenter R, Catford JA, Cawthray GR, Cernusak LA, Chandler G, Chapman AR, Cheal D, Cheesman AW, Chen SC, Choat B, Clinton B, Clode PL, Coleman H, Cornwell WK, Cosgrove M, Crisp M, Cross E, Crous KY, Cunningham S, Curran T, Curtis E, Daws MI, DeGabriel JL, Denton MD, Dong N, Du P, Duan H, Duncan DH, Duncan RP, Duretto M, Dwyer JM, Edwards C, Esperon-Rodriguez M, Evans JR, Everingham SE, Farrell C, Firn J, Fonseca CR, French BJ, Frood D, Funk JL, Geange SR, Ghannoum O, Gleason SM, Gosper CR, Gray E, Groom PK, Grootemaat S, Gross C, Guerin G, Guja L, Hahs AK, Harrison MT, Hayes PE, Henery M, Hochuli D, Howell J, Huang G, Hughes L, Huisman J, Ilic J, Jagdish A, Jin D, Jordan G, Jurado E, Kanowski J, Kasel S, Kellermann J, Kenny B, Kohout M, Kooyman RM, Kotowska MM, Lai HR, Laliberté E, Lambers H, Lamont BB, Lanfear R, van Langevelde F, Laughlin DC, Laugier-Kitchener BA, Laurance S, Lehmann CER, Leigh A, Leishman MR, Lenz T, Lepschi B, Lewis JD, Lim F, Liu U, Lord J, Lusk CH, Macinnis-Ng C, McPherson H, Magallón S, Manea A, López-Martinez A, Mayfield M, McCarthy JK, Meers T, van der Merwe M, Metcalfe DJ, Milberg P, Mokany K, Moles AT, Moore BD, Moore N, Morgan JW, Morris W, Muir A, Munroe S, Nicholson Á, Nicolle D, Nicotra AB, Niinemets Ü, North T, O'Reilly-Nugent A, O'Sullivan OS, Oberle B, Onoda Y, Ooi MKJ, Osborne CP, Paczkowska G, Pekin B, Guilherme Pereira C, Pickering C, Pickup M, Pollock LJ, Poot P, Powell JR, Power SA, Prentice IC, Prior L, Prober SM, Read J, Reynolds V, Richards AE, Richardson B, Roderick ML, Rosell JA, Rossetto M, Rye B, Rymer PD, Sams MA, Sanson G, Sauquet H, Schmidt S, Schönenberger J, Schulze ED, Sendall K, Sinclair S, Smith B, Smith R, Soper F, Sparrow B, Standish RJ, Staples TL, Stephens R, Szota C, Taseski G, Tasker E, Thomas F, Tissue DT, Tjoelker MG, Tng DYP, de Tombeur F, Tomlinson K, Turner NC, Veneklaas EJ, Venn S, Vesk P, Vlasveld C, Vorontsova MS, Warren CA, Warwick N, Weerasinghe LK, Wells J, Westoby M, White M, Williams NSG, Wills J, Wilson PG, Yates C, Zanne AE, Zemunik G, Ziemińska K. AusTraits, a curated plant trait database for the Australian flora. Sci Data 2021; 8:254. [PMID: 34593819 PMCID: PMC8484355 DOI: 10.1038/s41597-021-01006-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 08/05/2021] [Indexed: 02/08/2023] Open
Abstract
We introduce the AusTraits database - a compilation of values of plant traits for taxa in the Australian flora (hereafter AusTraits). AusTraits synthesises data on 448 traits across 28,640 taxa from field campaigns, published literature, taxonomic monographs, and individual taxon descriptions. Traits vary in scope from physiological measures of performance (e.g. photosynthetic gas exchange, water-use efficiency) to morphological attributes (e.g. leaf area, seed mass, plant height) which link to aspects of ecological variation. AusTraits contains curated and harmonised individual- and species-level measurements coupled to, where available, contextual information on site properties and experimental conditions. This article provides information on version 3.0.2 of AusTraits which contains data for 997,808 trait-by-taxon combinations. We envision AusTraits as an ongoing collaborative initiative for easily archiving and sharing trait data, which also provides a template for other national or regional initiatives globally to fill persistent gaps in trait knowledge.
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Affiliation(s)
- Daniel Falster
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia.
| | - Rachael Gallagher
- Department of Biological Sciences, Macquarie University, Sydney, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Elizabeth H Wenk
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | - Ian J Wright
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | - Dony Indiarto
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | | | - Caitlan Baxter
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | - James Lawson
- NSW Department of Primary Industries, Orange, Australia
| | - Stuart Allen
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | - Anne Fuchs
- Centre for Australian National Biodiversity Research (a joint venture between Parks Australia and CSIRO), Canberra, ACT, Australia
| | - Anna Monro
- Centre for Australian National Biodiversity Research (a joint venture between Parks Australia and CSIRO), Canberra, ACT, Australia
| | - Fonti Kar
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | - Mark A Adams
- Swinburne University of Technology, Hawthorn, Australia
| | - Collin W Ahrens
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Matthew Alfonzetti
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | | | - Deborah M G Apgaua
- Centre for Rainforest Studies, School for Field Studies, Yungaburra, Queensland, 4872, Australia
| | | | - Owen K Atkin
- The Australian National University, Canberra, Australia
| | - Joe Atkinson
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | - Tony Auld
- NSW Department of Planning Industry and Environment, Parramatta, Australia
| | | | - Maria von Balthazar
- Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | | | | | | | | | - Jason Bragg
- Research Centre for Ecosystem Resilience, Australian Institute of Botanical Science, Royal Botanic Gardens and Domain Trust, Sydney, Australia
| | | | | | | | | | - James Camac
- Centre of Excellence for Biosecurity Risk Analysis, The University of Melbourne, Melbourne, Australia
| | | | | | | | - Lucas A Cernusak
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | | | - Alex R Chapman
- Western Australian Herbarium, Keiran McNamara Conservation Science Centre, Department of Biodiversity, Conservation and Attractions, Western Australia, Kensington, Australia
| | - David Cheal
- Centre for Environmental Management, School of Health & Life Sciences, Federation University, Mount Helen, Australia
| | | | - Si-Chong Chen
- Royal Botanic Gardens, Richmond, Kew, United Kingdom
| | - Brendan Choat
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Brook Clinton
- Centre for Australian National Biodiversity Research (a joint venture between Parks Australia and CSIRO), Canberra, ACT, Australia
| | - Peta L Clode
- University of Western Australia, Crawley, Australia
| | - Helen Coleman
- Western Australian Herbarium, Keiran McNamara Conservation Science Centre, Department of Biodiversity, Conservation and Attractions, Western Australia, Kensington, Australia
| | - William K Cornwell
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | | | - Michael Crisp
- The Australian National University, Canberra, Australia
| | - Erika Cross
- Charles Sturt University, Bathurst, Australia
| | - Kristine Y Crous
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Saul Cunningham
- Fenner School of Environment and Society, The Australian National University, Canberra, Australia
| | | | - Ellen Curtis
- University of Technology Sydney, Sydney, Australia
| | - Matthew I Daws
- Environment Department, Alcoa of Australia, Huntly, Western Australia, Australia
| | - Jane L DeGabriel
- School of Marine and Tropical Biology, James Cook University, Douglas, Australia
| | - Matthew D Denton
- School of Agriculture, Food and Wine, University of Adelaide, Adelaide, Australia
| | - Ning Dong
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | | | - Honglang Duan
- Institute for Forest Resources & Environment of Guizhou, Guizhou University, Guiyang, China
| | | | - Richard P Duncan
- Institute for Applied Ecology, University of Canberra, ACT, 2617, Canberra, Australia
| | - Marco Duretto
- National Herbarium of New South Wales, Australian Institute of Botanical Science, Royal Botanic Gardens and Domain Trust, Sydney, Australia
| | - John M Dwyer
- School of Biological Sciences, The University of Queensland, St Lucia, Australia
| | | | | | - John R Evans
- The Australian National University, Canberra, Australia
| | - Susan E Everingham
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | | | - Jennifer Firn
- Queensland University of Technology, Brisbane, Australia
| | - Carlos Roberto Fonseca
- Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, Natal - RN, Brazil
| | | | - Doug Frood
- Pathways Bushland and Environment Consultancy, Sydney, Australia
| | - Jennifer L Funk
- Department of Plant Sciences, University of California, Davis, USA
| | | | - Oula Ghannoum
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | | | - Carl R Gosper
- Biodiversity and Conservation Science, Department of Biodiversity, Conservation and Attractions, Kensington, WA, Australia
| | - Emma Gray
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | | | - Saskia Grootemaat
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | | | - Greg Guerin
- Terrestrial Ecosystem Research Network, The School of Biological Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Lydia Guja
- Centre for Australian National Biodiversity Research (a joint venture between Parks Australia and CSIRO), Canberra, ACT, Australia
| | - Amy K Hahs
- School of Ecosystem and Forest Sciences, The University of Melbourne, Melbourne, Australia
| | | | | | - Martin Henery
- arks Australia, Department of Agriculture, Water and the Environment, Hobart, Australia
| | - Dieter Hochuli
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, Australia
| | | | - Guomin Huang
- Nanchang Institute of Technology, Nanchang, China
| | - Lesley Hughes
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | - John Huisman
- Western Australian Herbarium, Biodiversity and Conservation Science, Department of Biodiversity, Conservation and Attractions, Kensington, Western Australia, Australia
| | | | - Ashika Jagdish
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | - Daniel Jin
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, Australia
| | | | - Enrique Jurado
- Universidad Autonoma de Nuevo Leon, San Nicolás de los Garza, Mexico
| | | | | | - Jürgen Kellermann
- State Herbarium of South Australia, Botanic Gardens and State Herbarium, Hackney Road, Adelaide, SA, 5000, Australia
| | | | - Michele Kohout
- Department of Environment, Land, Water and Planning, Victoria, Australia
| | - Robert M Kooyman
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | - Martyna M Kotowska
- Department of Plant Ecology and Ecosystems Research, University of Goettingen, Göttingen, Germany
| | - Hao Ran Lai
- University of Canterbury, Christchurch, New Zealand
| | - Etienne Laliberté
- Institut de recherche en biologie végétale, Université de Montréal, 4101 Sherbrooke Est, Montréal, H1X 2B2, Canada
| | - Hans Lambers
- University of Western Australia, Crawley, Australia
| | | | - Robert Lanfear
- Ecology and Evolution, Research School of Biology, Australian National University, Canberra, Australia
| | - Frank van Langevelde
- Wildlife Ecology & Conservation Group, Wageningen University, Wageningen, The Netherlands
| | - Daniel C Laughlin
- Department of Botany, University of Wyoming, Laramie, WY, 82071, USA
| | | | | | | | - Andrea Leigh
- University of Technology Sydney, Sydney, Australia
| | | | - Tanja Lenz
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | - Brendan Lepschi
- Centre for Australian National Biodiversity Research (a joint venture between Parks Australia and CSIRO), Canberra, ACT, Australia
| | | | - Felix Lim
- AMAP (Botanique et Modélisation de l'Architecture des Plantes et des Végétations), Université de Montpellier, CIRAD, CNRS, INRA, IRD, Montpellier, France
| | | | | | - Christopher H Lusk
- Environmental Research Institute, University of Waikato, Hamilton, New Zealand
| | | | - Hannah McPherson
- National Herbarium of New South Wales, Australian Institute of Botanical Science, Royal Botanic Gardens and Domain Trust, Sydney, Australia
| | - Susana Magallón
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Anthony Manea
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | - Andrea López-Martinez
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Margaret Mayfield
- School of Biological Sciences, The University of Queensland, St Lucia, Australia
| | | | | | - Marlien van der Merwe
- Research Centre for Ecosystem Resilience, Australian Institute of Botanical Science, Royal Botanic Gardens and Domain Trust, Sydney, Australia
| | | | | | | | - Angela T Moles
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | - Ben D Moore
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | | | | | | | - Annette Muir
- Department of Environment, Land, Water and Planning, Victoria, Australia
| | - Samantha Munroe
- Terrestrial Ecosystem Research Network, The School of Biological Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | | | - Dean Nicolle
- Currency Creek Arboretum, Currency Creek, Australia
| | | | - Ülo Niinemets
- Estonian University of Life Sciences, Tartu, Estonia
| | - Tom North
- Centre for Australian National Biodiversity Research (a joint venture between Parks Australia and CSIRO), Canberra, ACT, Australia
| | | | | | - Brad Oberle
- Division of Natural Sciences, New College of Florida, Sarasota, USA
| | - Yusuke Onoda
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Mark K J Ooi
- Centre for Ecosystem Science, School of Biological, Earth, and Environmental Sciences, UNSW, Sydney, Australia
| | - Colin P Osborne
- University of Sheffield, Department of Animal and Plant Sciences, Sheffield, United Kingdom
| | - Grazyna Paczkowska
- Western Australian Herbarium, Keiran McNamara Conservation Science Centre, Department of Biodiversity, Conservation and Attractions, Western Australia, Kensington, Australia
| | - Burak Pekin
- Istanbul Technical University, Eurasia Institute of Earth Sciences, Istanbul, Turkey
| | - Caio Guilherme Pereira
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, USA
| | | | | | | | - Pieter Poot
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | - Jeff R Powell
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Sally A Power
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | | | | | | | - Jennifer Read
- School of Biological Sciences, Monash University, Clayton, Australia
| | - Victoria Reynolds
- School of Biological Sciences, The University of Queensland, St Lucia, Australia
| | | | - Ben Richardson
- Western Australian Herbarium, Department of Biodiversity, Conservation and Attractions, Western Australia, Kensington, Australia
| | | | - Julieta A Rosell
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Maurizio Rossetto
- National Herbarium of New South Wales, Australian Institute of Botanical Science, Royal Botanic Gardens and Domain Trust, Sydney, Australia
| | - Barbara Rye
- Western Australian Herbarium, Department of Biodiversity, Conservation and Attractions, Western Australia, Kensington, Australia
| | - Paul D Rymer
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Michael A Sams
- School of Biological Sciences, The University of Queensland, St Lucia, Australia
| | - Gordon Sanson
- School of Biological Sciences, Monash University, Clayton, Australia
| | - Hervé Sauquet
- National Herbarium of New South Wales, Australian Institute of Botanical Science, Royal Botanic Gardens and Domain Trust, Sydney, Australia
| | - Susanne Schmidt
- School of Agriculture and Food Science, University of Queensland, St Lucia, Australia
| | - Jürg Schönenberger
- Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | | | - Kerrie Sendall
- Rider University, Lawrence Township, Lawrenceville, NJ, USA
| | - Steve Sinclair
- Department of Plant Ecology and Ecosystems Research, University of Goettingen, Göttingen, Germany
| | - Benjamin Smith
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Renee Smith
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | | | - Ben Sparrow
- Terrestrial Ecosystem Research Network, The School of Biological Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Rachel J Standish
- Environmental and Conservation Sciences, Murdoch University, Murdoch, Australia
| | - Timothy L Staples
- School of Biological Sciences, The University of Queensland, St Lucia, Australia
| | - Ruby Stephens
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | | | - Guy Taseski
- Evolution & Ecology Research Centre, School of Biological, Earth, and Environmental Sciences, UNSW Sydney, Sydney, Australia
| | - Elizabeth Tasker
- NSW Department of Planning Industry and Environment, Parramatta, Australia
| | | | - David T Tissue
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - Mark G Tjoelker
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia
| | - David Yue Phin Tng
- Centre for Rainforest Studies, School for Field Studies, Yungaburra, Queensland, 4872, Australia
| | - Félix de Tombeur
- TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
| | | | | | | | - Susanna Venn
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Burwood, Australia
| | - Peter Vesk
- University of Melbourne, Melbourne, Australia
| | - Carolyn Vlasveld
- School of Biological Sciences, Monash University, Clayton, Australia
| | | | - Charles A Warren
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, Australia
| | | | | | - Jessie Wells
- School of Biological Sciences, The University of Queensland, St Lucia, Australia
| | - Mark Westoby
- Department of Biological Sciences, Macquarie University, Sydney, Australia
| | - Matthew White
- Department of Environment, Land, Water and Planning, Victoria, Australia
| | | | - Jarrah Wills
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, Australia
| | - Peter G Wilson
- National Herbarium of NSW and Royal Botanic Gardens and Domain Trust, Sydney, Australia
| | - Colin Yates
- Biodiversity and Conservation Science, Department of Biodiversity, Conservation and Attractions, Kensington, WA, Australia
| | - Amy E Zanne
- Department of Biological Sciences, George Washington University, Washington, DC, 20052, USA
- Department of Biology, University of Miami, Coral Gables, Florida 33146 USA, George Washington University, Washington, DC, 20052, USA
| | | | - Kasia Ziemińska
- AMAP (Botanique et Modélisation de l'Architecture des Plantes et des Végétations), Université de Montpellier, CIRAD, CNRS, INRA, IRD, Montpellier, France
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16
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Xu H, Wang H, Prentice IC, Harrison SP, Wang G, Sun X. Predictability of leaf traits with climate and elevation: a case study in Gongga Mountain, China. TREE PHYSIOLOGY 2021; 41:1336-1352. [PMID: 33440428 PMCID: PMC8454210 DOI: 10.1093/treephys/tpab003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/09/2020] [Accepted: 01/04/2021] [Indexed: 05/19/2023]
Abstract
Leaf mass per area (Ma), nitrogen content per unit leaf area (Narea), maximum carboxylation capacity (Vcmax) and the ratio of leaf-internal to ambient CO2 partial pressure (χ) are important traits related to photosynthetic function, and they show systematic variation along climatic and elevational gradients. Separating the effects of air pressure and climate along elevational gradients is challenging due to the covariation of elevation, pressure and climate. However, recently developed models based on optimality theory offer an independent way to predict leaf traits and thus to separate the contributions of different controls. We apply optimality theory to predict variation in leaf traits across 18 sites in the Gongga Mountain region. We show that the models explain 59% of trait variability on average, without site- or region-specific calibration. Temperature, photosynthetically active radiation, vapor pressure deficit, soil moisture and growing season length are all necessary to explain the observed patterns. The direct effect of air pressure is shown to have a relatively minor impact. These findings contribute to a growing body of research indicating that leaf-level traits vary with the physical environment in predictable ways, suggesting a promising direction for the improvement of terrestrial ecosystem models.
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Affiliation(s)
- Huiying Xu
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Shuangqing Road, Haidian District, Beijing 100084, China
- Joint Center for Global Change Studies (JCGCS), Shuangqing Road, Haidian District, Beijing 100875, China
| | - Han Wang
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Shuangqing Road, Haidian District, Beijing 100084, China
- Joint Center for Global Change Studies (JCGCS), Shuangqing Road, Haidian District, Beijing 100875, China
| | - I Colin Prentice
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Shuangqing Road, Haidian District, Beijing 100084, China
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot SL5 7PY, UK
- Department of Biological Sciences, Macquarie University, Balaclava Road, North Ryde, NSW 2109, Australia
| | - Sandy P Harrison
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Shuangqing Road, Haidian District, Beijing 100084, China
- School of Archaeology, Geography and Environmental Sciences (SAGES), University of Reading, Reading Berkshire RG6 6AH, UK
| | - Genxu Wang
- Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Renmin South Road, Wuhou District, Chengdu, China
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Renmin South Road, Wuhou District, Chengdu 610065, China
| | - Xiangyang Sun
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Renmin South Road, Wuhou District, Chengdu 610065, China
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17
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Sundermann EM, Lercher MJ, Heckmann D. Modeling photosynthetic resource allocation connects physiology with evolutionary environments. Sci Rep 2021; 11:15979. [PMID: 34354112 PMCID: PMC8342476 DOI: 10.1038/s41598-021-94903-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 07/15/2021] [Indexed: 11/12/2022] Open
Abstract
The regulation of resource allocation in biological systems observed today is the cumulative result of natural selection in ancestral and recent environments. To what extent are observed resource allocation patterns in different photosynthetic types optimally adapted to current conditions, and to what extent do they reflect ancestral environments? Here, we explore these questions for C3, C4, and C3–C4 intermediate plants of the model genus Flaveria. We developed a detailed mathematical model of carbon fixation, which accounts for various environmental parameters and for energy and nitrogen partitioning across photosynthetic components. This allows us to assess environment-dependent plant physiology and performance as a function of resource allocation patterns. Models of C4 plants optimized for conditions experienced by evolutionary ancestors perform better than models accounting for experimental growth conditions, indicating low phenotypic plasticity. Supporting this interpretation, the model predicts that C4 species need to re-allocate more nitrogen between photosynthetic components than C3 species to adapt to new environments. We thus hypothesize that observed resource distribution patterns in C4 plants still reflect optimality in ancestral environments, allowing the quantitative inference of these environments from today’s plants. Our work allows us to quantify environmental effects on photosynthetic resource allocation and performance in the light of evolutionary history.
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Affiliation(s)
- Esther M Sundermann
- Institute for Computer Science and Department of Biology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Martin J Lercher
- Institute for Computer Science and Department of Biology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany.
| | - David Heckmann
- Institute for Computer Science and Department of Biology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany.
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18
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Wu J, Shi Z, Liu S, Centritto M, Cao X, Zhang M, Zhao G. Photosynthetic capacity of male and female Hippophae rhamnoides plants along an elevation gradient in eastern Qinghai-Tibetan Plateau, China. TREE PHYSIOLOGY 2021; 41:76-88. [PMID: 32785643 DOI: 10.1093/treephys/tpaa105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Elevational variations in the growing environment and sex differences in individuals drive the diversification of photosynthetic capacity of plants. However, photosynthetic response of dioecious plants to elevation gradients and the mechanisms that cause these responses are poorly understood. We measured foliar gas exchange, chlorophyll fluorescence and nitrogen allocations of male and female Seabuckthorn (Hippophae rhamnoides L.) at the elevation of 1900-3700 m above sea level (a.s.l.) on the eastern Qinghai-Tibetan Plateau, China. Male and female plants showed increased leaf photosynthetic capacity at higher elevation generally with no sex-specific difference. Photosynthetic photon flux density-saturated photosynthesis (Asat) was limited mostly by diffusional components (77 ± 1%), whereas biochemical components contributed minor limitations (22 ± 1%). Mesophyll conductance (gm) played an essential role in Asat variation, accounting for 40 ± 2% of the total photosynthetic limitations and had a significant positive correlation with Asat. Leaf nitrogen allocations to Rubisco (PR) and bioenergetics (PB) in the photosynthetic apparatus were major drivers for variations in photosynthetic nitrogen-use efficiency. The increase of these resource uptake capacities enables H. rhamnoides to maintain a high level of carbon assimilation and function efficiently to cope with the harsh conditions and shorter growing season at higher elevation.
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Affiliation(s)
- Jiamei Wu
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Zuomin Shi
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
- Institute for Sustainable Plant Protection, National Research Council of Italy, Torino 10135, Italy
| | - Shun Liu
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Mauro Centritto
- Institute for Sustainable Plant Protection, National Research Council of Italy, Torino 10135, Italy
| | - Xiangwen Cao
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Miaomiao Zhang
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Guangdong Zhao
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
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19
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Ávila-Lovera E, Garcillán PP, Silva-Bejarano C, Santiago LS. Functional traits of leaves and photosynthetic stems of species from a sarcocaulescent scrub in the southern Baja California Peninsula. AMERICAN JOURNAL OF BOTANY 2020; 107:1410-1422. [PMID: 33460035 DOI: 10.1002/ajb2.1546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/29/2020] [Indexed: 06/12/2023]
Abstract
PREMISE Photosynthetic stems represent a source of extra carbon in plants from hot and dry environments, but little is known about how leaves and photosynthetic stems differ in terms of photosynthetic capacity, trait coordination, and responses to seasonal drought in subtropical systems. METHODS We studied photosynthetic, hydraulic, morphometric (specific leaf area [SLA], wood density [WD]), and biochemical (C and N isotopes) traits in leaves and photosynthetic stems of 12 plant species from a sarcocaulescent scrub in the southern Baja California Peninsula, Mexico, in wet and dry seasons. RESULTS Leaves and stems had similar mean photosynthetic capacity, as evaluated by chlorophyll fluorescence traits, indicating similar investment in leaf and stem photosynthesis. We did not find a relationship between stem hydraulic conductivity and leaf or stem photosynthetic traits. However, we found resource allocation trade-offs, between WD and both stem hydraulic conductivity and SLA. Leaf and stem photosynthetic traits did not change with season, but specific stem area was one of the few traits that changed the most between seasons-it increased during the dry season by as much as 154% indicating substantial water storage. CONCLUSIONS Our results indicate the same proportional investment in photosynthetic capacity and dry matter in both leaves and photosynthetic stems across all 12 species. We identified multiple strategies at this seasonal site, with species ranging from high WD, low SLA, low hydraulic conductivity, and high specific bark area on one end of the spectrum and opposite traits on the other end.
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Affiliation(s)
- Eleinis Ávila-Lovera
- Department of Botany and Plant Sciences, University of California, 2150 Batchelor Hall, Riverside, CA, 92521, USA
- Evolution, Ecology and Organismal Biology Graduate Program, Department of Evolution, Ecology and Organismal Biology, University of California, Riverside, CA, 92521, USA
| | - Pedro P Garcillán
- Centro de Investigaciones Biológicas del Noroeste, Av. Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz, B.C.S, 23096, México
| | - Christian Silva-Bejarano
- Centro de Investigaciones Biológicas del Noroeste, Av. Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz, B.C.S, 23096, México
| | - Louis S Santiago
- Department of Botany and Plant Sciences, University of California, 2150 Batchelor Hall, Riverside, CA, 92521, USA
- Smithsonian Tropical Research Institute, Apartado 0843-03092. Balboa, Ancon, Panama, Republic of Panama
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20
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Detto M, Xu X. Optimal leaf life strategies determine V c,max dynamic during ontogeny. THE NEW PHYTOLOGIST 2020; 228:361-375. [PMID: 32473028 DOI: 10.1111/nph.16712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/12/2020] [Indexed: 05/26/2023]
Abstract
Leaf photosynthetic properties, for example the maximum carboxylation velocity or Vc,max , change with leaf age due to ontogenetic processes. This study introduces an optimal dynamic allocation scheme to model changes in leaf-level photosynthetic capacity as a function of leaf biochemical constraints (costs of synthesis and defence), nitrogen availability and other environmental factors (e.g. light). The model consists of a system of equations describing RuBisCO synthesis and degradation within chloroplasts, defence and ageing at leaf levels, nitrogen transfer and carbon budget at plant levels. Model results show that optimal allocation principles explained RuBisCO dynamics with leaf age. An approximated analytical solution can reproduce the basic pattern of RuBisCO and Vc,max in rice and in two tropical tree species. The model also reveals leaf life complementarities that remained unexplained in previous approaches, as the interplay between Vc,max at maturation, life span and the decline in photosynthetic capacity with age. Furthermore, it explores the role of defence, which is not implemented in current models. This framework covers some of the existing gaps in integrating multiple processes across plant organs (chloroplast, leaf and whole plant) and is a first-step towards representing mechanistically leaf ontogenetic processes into physiological and ecosystem models.
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Affiliation(s)
- Matteo Detto
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA
- Smithsonian Tropical Research Institute, Balboa, 0843-03092, Republic of Panama
| | - Xiangtao Xu
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, 14853, USA
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21
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Smith NG, Keenan TF. Mechanisms underlying leaf photosynthetic acclimation to warming and elevated CO 2 as inferred from least-cost optimality theory. GLOBAL CHANGE BIOLOGY 2020; 26:5202-5216. [PMID: 32525621 DOI: 10.1111/gcb.15212] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/01/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
The mechanisms responsible for photosynthetic acclimation are not well understood, effectively limiting predictability under future conditions. Least-cost optimality theory can be used to predict the acclimation of photosynthetic capacity based on the assumption that plants maximize carbon uptake while minimizing the associated costs. Here, we use this theory as a null model in combination with multiple datasets of C3 plant photosynthetic traits to elucidate the mechanisms underlying photosynthetic acclimation to elevated temperature and carbon dioxide (CO2 ). The model-data comparison showed that leaves decrease the ratio of the maximum rate of electron transport to the maximum rate of Rubisco carboxylation (Jmax /Vcmax ) under higher temperatures. The comparison also indicated that resources used for Rubisco and electron transport are reduced under both elevated temperature and CO2 . Finally, our analysis suggested that plants underinvest in electron transport relative to carboxylation under elevated CO2 , limiting potential leaf-level photosynthesis under future CO2 concentrations. Altogether, our results show that acclimation to temperature and CO2 is primarily related to resource conservation at the leaf level. Under future, warmer, high CO2 conditions, plants are therefore likely to use less nutrients for leaf-level photosynthesis, which may impact whole-plant to ecosystem functioning.
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Affiliation(s)
- Nicholas G Smith
- Department of Biological Sciences, Texas Tech University, Lubbock, TX, USA
- Climate and Ecosystem Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Trevor F Keenan
- Climate and Ecosystem Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Environmental Science, Policy and Management, UC Berkeley, Berkeley, CA, USA
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22
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Coast O, Shah S, Ivakov A, Gaju O, Wilson PB, Posch BC, Bryant CJ, Negrini ACA, Evans JR, Condon AG, Silva-Pérez V, Reynolds MP, Pogson BJ, Millar AH, Furbank RT, Atkin OK. Predicting dark respiration rates of wheat leaves from hyperspectral reflectance. PLANT, CELL & ENVIRONMENT 2019; 42:2133-2150. [PMID: 30835839 DOI: 10.1111/pce.13544] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 02/18/2019] [Accepted: 02/24/2019] [Indexed: 05/22/2023]
Abstract
Greater availability of leaf dark respiration (Rdark ) data could facilitate breeding efforts to raise crop yield and improve global carbon cycle modelling. However, the availability of Rdark data is limited because it is cumbersome, time consuming, or destructive to measure. We report a non-destructive and high-throughput method of estimating Rdark from leaf hyperspectral reflectance data that was derived from leaf Rdark measured by a destructive high-throughput oxygen consumption technique. We generated a large dataset of leaf Rdark for wheat (1380 samples) from 90 genotypes, multiple growth stages, and growth conditions to generate models for Rdark . Leaf Rdark (per unit leaf area, fresh mass, dry mass or nitrogen, N) varied 7- to 15-fold among individual plants, whereas traits known to scale with Rdark , leaf N, and leaf mass per area (LMA) only varied twofold to fivefold. Our models predicted leaf Rdark , N, and LMA with r2 values of 0.50-0.63, 0.91, and 0.75, respectively, and relative bias of 17-18% for Rdark and 7-12% for N and LMA. Our results suggest that hyperspectral model prediction of wheat leaf Rdark is largely independent of leaf N and LMA. Potential drivers of hyperspectral signatures of Rdark are discussed.
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Affiliation(s)
- Onoriode Coast
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Shahen Shah
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- The University of Agriculture Peshawar, Peshawar, 25130, Pakistan
| | - Alexander Ivakov
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Oorbessy Gaju
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Philippa B Wilson
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Bradley C Posch
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Callum J Bryant
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Anna Clarissa A Negrini
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - John R Evans
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Anthony G Condon
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- CSIRO Agriculture, Canberra, Australian Capital Territory, 2601, Australia
| | - Viridiana Silva-Pérez
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- CSIRO Agriculture, Canberra, Australian Capital Territory, 2601, Australia
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Centre (CIMMYT), México, 06600, Mexico
| | - Barry J Pogson
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - A Harvey Millar
- ARC Centre of Excellence in Plant Energy Biology, University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Robert T Furbank
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- CSIRO Agriculture, Canberra, Australian Capital Territory, 2601, Australia
| | - Owen K Atkin
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
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23
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Park M, Cho S, Park J, Lee H, Song W, Park IK, Kim HS. Size-dependent variation in leaf functional traits and nitrogen allocation trade-offs in Robinia pseudoacacia and Cornus controversa. TREE PHYSIOLOGY 2019; 39:755-766. [PMID: 30924868 DOI: 10.1093/treephys/tpy150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 11/24/2018] [Accepted: 12/22/2018] [Indexed: 06/09/2023]
Abstract
Tree species vary in how they invest resources to different functions throughout their life histories, and investigating the detailed patterns of ontogenetic changes in key functional traits will aid in predicting forest dynamics and ecosystem processes. In this context, we investigated size-dependent changes in key leaf functional traits and nitrogen (N) allocation trade-offs in black locust (Robinia pseudoacacia L., an N-fixing pioneer species) and giant dogwood (Cornus controversa Hemsl., a mid-successional species), which have different life-history strategies, especially in their light use. We found that the leaf mass per area and leaf carbon concentrations increased linearly with tree size (diameter at breast height, DBH), whereas leaf N concentrations decreased nonlinearly, with U- and hump-shaped patterns in black locust and giant dogwood, respectively. We also discovered large differences in N allocation between the two species. The fraction of leaf N invested in cell walls was much higher in black locust than in giant dogwood, while the opposite was true for the light harvesting N fraction. Furthermore, these fractions were related to DBH to varying degrees: the cell wall N fraction increased with DBH for both species, whereas the light harvesting N fraction of giant dogwood decreased nonlinearly and that of black locust remained constant. Instead, black locust reduced the fraction of leaf N invested in other N pools, resulting in a smaller fraction compared to that of giant dogwood. On the other hand, both species had similar fraction of leaf N invested in ribulose-1,5-bisphosphate carboxylase/oxygenase across tree size. This study indicated that both species increased leaf mechanical toughness through characteristic changes in N allocation trade-offs over the lifetimes of the trees.
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Affiliation(s)
- Minjee Park
- Department of Forest Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sungsik Cho
- Interdisciplinary Program in Agricultural and Forest Meteorology, Seoul National University, Seoul, Republic of Korea
- National Center for Agro Meteorology, Seoul, Republic of Korea
| | - Juhan Park
- Department of Forest Sciences, Seoul National University, Seoul, Republic of Korea
- National Center for Agro Meteorology, Seoul, Republic of Korea
| | - HoonTaek Lee
- Department of Forest Sciences, Seoul National University, Seoul, Republic of Korea
| | - Wookyung Song
- Department of Forest Sciences, Seoul National University, Seoul, Republic of Korea
| | - Il-Kwon Park
- Department of Forest Sciences, Seoul National University, Seoul, Republic of Korea
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hyun Seok Kim
- Department of Forest Sciences, Seoul National University, Seoul, Republic of Korea
- Interdisciplinary Program in Agricultural and Forest Meteorology, Seoul National University, Seoul, Republic of Korea
- National Center for Agro Meteorology, Seoul, Republic of Korea
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
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Tang J, Sun B, Cheng R, Shi Z, Da Luo, Liu S, Centritto M. Effects of soil nitrogen (N) deficiency on photosynthetic N-use efficiency in N-fixing and non-N-fixing tree seedlings in subtropical China. Sci Rep 2019; 9:4604. [PMID: 30872731 PMCID: PMC6418086 DOI: 10.1038/s41598-019-41035-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 01/17/2019] [Indexed: 11/11/2022] Open
Abstract
Soil nitrogen (N) deficiencies can affect the photosynthetic N-use efficiency (PNUE), mesophyll conductance (gm), and leaf N allocation. However, lack of information about how these physiological characteristics in N-fixing trees could be affected by soil N deficiency and the difference between N-fixing and non-N-fixing trees. In this study, we chose seedlings of two N-fixing (Dalbergia odorifera and Erythrophleum fordii) and two non-N-fixing trees (Castanopsis hystrix and Betula alnoides) as study objects, and we conducted a pot experiment with three levels of soil N treatments (high nitrogen, set as Control; medium nitrogen, MN; and low nitrogen, LN). Our results showed that soil N deficiency significantly decreased the leaf N concentration and photosynthesis ability of the two non-N-fixing trees, but it had less influence on two N-fixing trees. The LN treatment had lower gm in D. odorifera and lower leaf N allocated to Rubisco (PR), leaf N allocated to bioenergetics (PB), and gm in B. alnoides, eventually resulting in low PNUE values. Our findings suggested that the D. odorifera and E. fordii seedlings could grow well in N-deficient soil, and adding N may increase the growth rates of B. alnoides and C. hystrix seedlings and promote the growth of artificial forests.
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Affiliation(s)
- Jingchao Tang
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China.,School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao, 266033, China
| | - Baodi Sun
- School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao, 266033, China
| | - Ruimei Cheng
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China.,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Zuomin Shi
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China. .,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China. .,Tree and Timber Institute, National Research Council of Italy, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy.
| | - Da Luo
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China.,Research Institute of Economic Forestry, Xinjiang Academy of Forestry Science, Urumqi, 830000, China
| | - Shirong Liu
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China
| | - Mauro Centritto
- Tree and Timber Institute, National Research Council of Italy, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy
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25
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Tang J, Sun B, Cheng R, Shi Z, Luo D, Liu S, Centritto M. Seedling leaves allocate lower fractions of nitrogen to photosynthetic apparatus in nitrogen fixing trees than in non-nitrogen fixing trees in subtropical China. PLoS One 2019; 14:e0208971. [PMID: 30830910 PMCID: PMC6398865 DOI: 10.1371/journal.pone.0208971] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/20/2019] [Indexed: 11/26/2022] Open
Abstract
Photosynthetic-nitrogen use efficiency (PNUE) is a useful trait to characterize leaf physiology and survival strategy. PNUE can also be considered as part of ‘leaf economics spectrum’ interrelated with leaf nutrient concentrations, photosynthesis and respiration, leaf life-span and dry-mass investment. However, few studies have paid attention to PNUE of N-fixing tree seedlings in subtropical China. In this study, we investigated the differences in PNUE, leaf nitrogen (N) allocation, and mesophyll conductance (gm) in Dalbergia odorifera and Erythrophleum fordii (N-fixing trees), and Betula alnoides and Castanopsis hystrix (non-N-fixing trees). PNUE of D. odorifera and E. fordii were significantly lower than those of B. alnoides and C. hystrix mainly because of their allocation of a lower fraction of leaf N to Rubisco (PR) and bioenergetics (PB). Mesophyll conductance had a significant positive correlation with PNUE in D. odorifera, E. fordii, and B. alnoides, but the effect of gm on PNUE was different between species. The fraction of leaf N to cell wall (PCW) had a significant negative correlation with PR in B. alnoides and C. hystrix seedling leaves, but no correlation in D. odorifera and E. fordii seedling leaves, which may indicate that B. alnoides and C. hystrix seedling leaves did not have enough N to satisfy the demand from both the cell wall and Rubisco. Our results indicate that B. alnoides and C. hystrix may have a higher competitive ability in natural ecosystems with fertile soil, and D. odorifera and E. fordii may grow well in N-poor soil. Mixing these non-N-fixing and N-fixing trees for afforestation is useful for improving soil N utilization efficiency in the tropical forests.
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Affiliation(s)
- Jingchao Tang
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
- School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao, China
| | - Baodi Sun
- School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao, China
| | - Ruimei Cheng
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Zuomin Shi
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
- Tree and Timber Institute, National Research Council of Italy Sesto, Fiorentino, Italy
- * E-mail:
| | - Da Luo
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
- Research Institute of Economic Forestry, Xinjiang Academy of Forestry Science, Urumqi, China
| | - Shirong Liu
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Mauro Centritto
- Tree and Timber Institute, National Research Council of Italy Sesto, Fiorentino, Italy
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Wentz KF, Neff JC, Suding KN. Leaf temperatures mediate alpine plant communities' response to a simulated extended summer. Ecol Evol 2019; 9:1227-1243. [PMID: 30805155 PMCID: PMC6374730 DOI: 10.1002/ece3.4816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 09/26/2018] [Accepted: 11/20/2018] [Indexed: 11/10/2022] Open
Abstract
We use a quantitative model of photosynthesis to explore leaf-level limitations to plant growth in an alpine tundra ecosystem that is expected to have longer, warmer, and drier growing seasons. The model is parameterized with abiotic and leaf trait data that is characteristic of two dominant plant communities in the alpine tundra and specifically at the Niwot Ridge Long Term Ecological Research Site: the dry and wet meadows. Model results produce realistic estimates of photosynthesis, nitrogen-use efficiency, water-use efficiency, and other gas exchange processes in the alpine tundra. Model simulations suggest that dry and wet meadow plant species do not significantly respond to changes in the volumetric soil moisture content but are sensitive to variation in foliar nitrogen content. In addition, model simulations indicate that dry and wet meadow species have different maximum rates of assimilation (normalized for leaf nitrogen content) because of differences in leaf temperature. These differences arise from the interaction of plant height and the abiotic environment characteristic of each plant community. The leaf temperature of dry meadow species is higher than wet meadow species and close to the optimal temperature for photosynthesis under current conditions. As a result, 2°C higher air temperatures in the future will likely lead to declines in dry meadow species' carbon assimilation. On the other hand, a longer and warmer growing season could increase nitrogen availability and assimilation rates in both plant communities. Nonetheless, a temperature increase of 4°C may lower rates of assimilation in both dry and wet meadow plant communities because of higher, and suboptimal, leaf temperatures.
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Affiliation(s)
| | - Jason C. Neff
- Environmental Studies DepartmentUniversity of ColoradoBoulderColorado
| | - Katharine N. Suding
- Institute of Arctic & Alpine Research, Ecology & Evolutionary Biology DepartmentUniversity of ColoradoBoulderColorado
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27
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He D, Yan ER. Size-dependent variations in individual traits and trait scaling relationships within a shade-tolerant evergreen tree species. AMERICAN JOURNAL OF BOTANY 2018; 105:1165-1174. [PMID: 30070684 DOI: 10.1002/ajb2.1132] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 05/08/2018] [Indexed: 05/26/2023]
Abstract
PREMISE OF STUDY The plant size-trait relationship is a fundamental dimension in the spectrum of plant form and function. However, it remains unclear whether the trait scaling relationship within species is modified by tree size. Investigating size-dependent trait covariations within species is crucial for understanding the ontogenetic constraints on the intraspecific economic spectrum and, more broadly, the structure and causes of intraspecific trait variations. METHODS We measured eight morphological, stoichiometric, and hydraulic traits for 604 individual plants of a shade-tolerant evergreen tree species, Litsea elongata, in a subtropical evergreen forest of eastern China. Individual trait values were regressed against tree basal diameter to evaluate size-dependent trait variations. Standardized major axis regression was employed to examine trait scaling relationships and to test whether there was a common slope and elevation in the trait scaling relationship across size classes. KEY RESULTS Small trees tended to have larger, thinner leaves and longer, slenderer stems than larger trees, which indicates an acquisitive economic strategy in juvenile trees. Leaf nitrogen concentrations increased with plant size, which was likely due to a high ratio of structural to photosynthetic nitrogen in the evergreen leaves of large trees. Bivariate trait scaling was minimally modified by tree size, although the elevation of some relationships differed between size classes. CONCLUSIONS Our results suggest that there are common economic and biophysical constraints on intraspecific trait covariation, independent of tree size. Small and large trees tend to be located at opposite ends of an intraspecific plant economic spectrum.
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Affiliation(s)
- Dong He
- Forest Ecosystem Research and Observation Station in Putuo Island, Tiantong National Station for Forest Ecosystem Research, and Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration; School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China
- Institute of Eco-Chongming (IEC), Shanghai, 200062, China
| | - En-Rong Yan
- Forest Ecosystem Research and Observation Station in Putuo Island, Tiantong National Station for Forest Ecosystem Research, and Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration; School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China
- Institute of Eco-Chongming (IEC), Shanghai, 200062, China
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28
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Liu T, Ren T, White PJ, Cong R, Lu J. Storage nitrogen co-ordinates leaf expansion and photosynthetic capacity in winter oilseed rape. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:2995-3007. [PMID: 29669007 PMCID: PMC5972566 DOI: 10.1093/jxb/ery134] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/06/2018] [Indexed: 05/20/2023]
Abstract
Storage nitrogen (N) is a buffer pool for maintaining leaf growth and synthesizing photosynthetic proteins, but the dynamics of its forms within the life cycle of a single leaf and how it is influenced by N supply remain poorly understood. A field experiment was conducted to estimate the influence of N supply on leaf growth, photosynthetic characteristics, and N partitioning inthe sixth leaf of winter oilseed rape (Brassica napus L.) from emergence through senescence. Storage N content (Nstore) decreased gradually along with leaf expansion. The relative growth rate based on leaf area (RGRa) was positively correlated with Nstore during leaf expansion. The water-soluble protein form of storage N was the main N source for leaf expansion. After the leaves fully expanded, the net photosynthetic rate (An) followed a linear-plateau response to Nstore, with An stabilizing at the highest value above a threshold and declining below the threshold. Non-protein and SDS (detergent)-soluble protein forms of storage N were the main N sources for maintaining photosynthesis. For the leaf N economy, storage N is used for co-ordinating leaf expansion and photosynthetic capacity. N supply can improve Nstore, thereby promoting leaf growth and biomass.
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Affiliation(s)
- Tao Liu
- Microelement Research Center, Huazhong Agricultural University, Wuhan, China
| | - Tao Ren
- Microelement Research Center, Huazhong Agricultural University, Wuhan, China
| | | | - Rihuan Cong
- Microelement Research Center, Huazhong Agricultural University, Wuhan, China
| | - Jianwei Lu
- Microelement Research Center, Huazhong Agricultural University, Wuhan, China
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29
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Tang J, Cheng R, Shi Z, Xu G, Liu S, Centritto M. Fagaceae tree species allocate higher fraction of nitrogen to photosynthetic apparatus than Leguminosae in Jianfengling tropical montane rain forest, China. PLoS One 2018; 13:e0192040. [PMID: 29390007 PMCID: PMC5794133 DOI: 10.1371/journal.pone.0192040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 01/16/2018] [Indexed: 01/23/2023] Open
Abstract
Variation in photosynthetic-nitrogen use efficiency (PNUE) is generally affected by several factors such as leaf nitrogen allocation and leaf diffusional conductances to CO2, although it is still unclear which factors significantly affect PNUE in tropical montane rain forest trees. In this study, comparison of PNUE, photosynthetic capacity, leaf nitrogen allocation, and diffusional conductances to CO2 between five Fagaceae tree species and five Leguminosae tree species were analyzed in Jianfengling tropical montane rain forest, Hainan Island, China. The result showed that PNUE of Fagaceae was significantly higher than that of Leguminosae (+35.5%), attributed to lower leaf nitrogen content per area (Narea, -29.4%). The difference in nitrogen allocation was the main biochemical factor that influenced interspecific variation in PNUE of these tree species. Fagaceae species allocated a higher fraction of leaf nitrogen to the photosynthetic apparatus (PP, +43.8%), especially to Rubisco (PR, +50.0%) and bioenergetics (PB +33.3%) in comparison with Leguminosae species. Leaf mass per area (LMA) of Leguminosae species was lower than that of Fagaceae species (-15.4%). While there was no significant difference shown for mesophyll conductance (gm), Fagaceae tree species may have greater chloroplast to total leaf surface area ratios and that offset the action of thicker cell walls on gm. Furthermore, weak negative relationship between nitrogen allocation in cell walls and in Rubisco was found for Castanopsis hystrix, Cyclobalanopsis phanera and Cy. patelliformis, which might imply that nitrogen in the leaves was insufficient for both Rubisco and cell walls. In summary, our study concluded that higher PNUE might contribute to the dominance of most Fagaceae tree species in Jianfengling tropical montane rain forest.
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Affiliation(s)
- Jingchao Tang
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Ruimei Cheng
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Zuomin Shi
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
- Tree and Timber Institute, National Research Council of Italy Sesto, Fiorentino, Italy
| | - Gexi Xu
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Shirong Liu
- Key Laboratory on Forest Ecology and Environmental Sciences of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Mauro Centritto
- Tree and Timber Institute, National Research Council of Italy Sesto, Fiorentino, Italy
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30
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Crous KY, O'Sullivan OS, Zaragoza-Castells J, Bloomfield KJ, Negrini ACA, Meir P, Turnbull MH, Griffin KL, Atkin OK. Nitrogen and phosphorus availabilities interact to modulate leaf trait scaling relationships across six plant functional types in a controlled-environment study. THE NEW PHYTOLOGIST 2017; 215:992-1008. [PMID: 28505389 DOI: 10.1111/nph.14591] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/19/2017] [Indexed: 05/26/2023]
Abstract
Nitrogen (N) and phosphorus (P) have key roles in leaf metabolism, resulting in a strong coupling of chemical composition traits to metabolic rates in field-based studies. However, in such studies, it is difficult to disentangle the effects of nutrient supply per se on trait-trait relationships. Our study assessed how high and low N (5 mM and 0.4 mM, respectively) and P (1 mM and 2 μM, respectively) supply in 37 species from six plant functional types (PTFs) affected photosynthesis (A) and respiration (R) (in darkness and light) in a controlled environment. Low P supply increased scaling exponents (slopes) of area-based log-log A-N or R-N relationships when N supply was not limiting, whereas there was no P effect under low N supply. By contrast, scaling exponents of A-P and R-P relationships were altered by P and N supply. Neither R : A nor light inhibition of leaf R was affected by nutrient supply. Light inhibition was 26% across nutrient treatments; herbaceous species exhibited a lower degree of light inhibition than woody species. Because N and P supply modulates leaf trait-trait relationships, the next generation of terrestrial biosphere models may need to consider how limitations in N and P availability affect trait-trait relationships when predicting carbon exchange.
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Affiliation(s)
- Kristine Y Crous
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
| | - Odhran S O'Sullivan
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Joana Zaragoza-Castells
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3JN, UK
- Department of Geography, College of Life and Environmental Sciences, University of Exeter, Amory Building, Exeter, EX4 4RJ, UK
| | - Keith J Bloomfield
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | - A Clarissa A Negrini
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | - Patrick Meir
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3JN, UK
| | - Matthew H Turnbull
- Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - Kevin L Griffin
- Department of Earth and Environment Sciences, Columbia University, Palisades, NY, 10964, USA
- Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY, 10027, USA
| | - Owen K Atkin
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
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31
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Scafaro AP, Xiang S, Long BM, Bahar NHA, Weerasinghe LK, Creek D, Evans JR, Reich PB, Atkin OK. Strong thermal acclimation of photosynthesis in tropical and temperate wet-forest tree species: the importance of altered Rubisco content. GLOBAL CHANGE BIOLOGY 2017; 23:2783-2800. [PMID: 27859952 DOI: 10.1111/gcb.13566] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Accepted: 10/16/2016] [Indexed: 05/09/2023]
Abstract
Understanding of the extent of acclimation of light-saturated net photosynthesis (An ) to temperature (T), and associated underlying mechanisms, remains limited. This is a key knowledge gap given the importance of thermal acclimation for plant functioning, both under current and future higher temperatures, limiting the accuracy and realism of Earth system model (ESM) predictions. Given this, we analysed and modelled T-dependent changes in photosynthetic capacity in 10 wet-forest tree species: six from temperate forests and four from tropical forests. Temperate and tropical species were each acclimated to three daytime growth temperatures (Tgrowth ): temperate - 15, 20 and 25 °C; tropical - 25, 30 and 35 °C. CO2 response curves of An were used to model maximal rates of RuBP (ribulose-1,5-bisphosphate) carboxylation (Vcmax ) and electron transport (Jmax ) at each treatment's respective Tgrowth and at a common measurement T (25 °C). SDS-PAGE gels were used to determine abundance of the CO2 -fixing enzyme, Rubisco. Leaf chlorophyll, nitrogen (N) and mass per unit leaf area (LMA) were also determined. For all species and Tgrowth , An at current atmospheric CO2 partial pressure was Rubisco-limited. Across all species, LMA decreased with increasing Tgrowth . Similarly, area-based rates of Vcmax at a measurement T of 25 °C (Vcmax25 ) linearly declined with increasing Tgrowth , linked to a concomitant decline in total leaf protein per unit leaf area and Rubisco as a percentage of leaf N. The decline in Rubisco constrained Vcmax and An for leaves developed at higher Tgrowth and resulted in poor predictions of photosynthesis by currently widely used models that do not account for Tgrowth -mediated changes in Rubisco abundance that underpin the thermal acclimation response of photosynthesis in wet-forest tree species. A new model is proposed that accounts for the effect of Tgrowth -mediated declines in Vcmax25 on An , complementing current photosynthetic thermal acclimation models that do not account for T sensitivity of Vcmax25 .
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Affiliation(s)
- Andrew P Scafaro
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | - Shuang Xiang
- Chengdu Institute of Biology, Chinese Academy of Sciences, No. 9, Section 4, Renmin South Road, Chengdu, Sichuan, 610041, China
- Division of Plant Sciences, Research School of Biology, The Australian National University, Building 46, Canberra, ACT, 2601, Australia
| | - Benedict M Long
- Division of Plant Sciences, Research School of Biology, The Australian National University, Building 46, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | - Nur H A Bahar
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | | | - Danielle Creek
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
| | - John R Evans
- Division of Plant Sciences, Research School of Biology, The Australian National University, Building 46, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | - Peter B Reich
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
- Department of Forest Resources, University of Minnesota, 1540 Cleveland Avenue North, St. Paul, MN, 55108, USA
| | - Owen K Atkin
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
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Gérant D, Pluchon M, Mareschal L, Koutika LS, Epron D. Seasonality of nitrogen partitioning (non-structural vs structural) in the leaves and woody tissues of tropical eucalypts experiencing a marked dry season. TREE PHYSIOLOGY 2017; 37:790-798. [PMID: 28369560 DOI: 10.1093/treephys/tpx032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 03/09/2017] [Indexed: 06/07/2023]
Abstract
Numerous studies have shown that internal nitrogen (N) translocation in temperate tree species is governed by photoperiod duration and temperature. For tropical tree species, the seasonality of rainfall is known to affect growth and foliage production, suggesting that efficient internal N recycling also occurs throughout the year. We tested this hypothesis by comparing the N budgets and N partitioning (non-structural vs structural N) in the different organs of 7-year-old Eucalyptus urophylla (S.T. Blake) × E. grandis (W. Hill ex Maiden) trees from a plantation in coastal Congo on poor sandy soil. The trees were sampled at the end of the dry season and late in the rainy season. Lower N concentrations and N investment in the non-structural fraction were observed in leaves during the dry season, which indicates resorption of non-structural N from senescing leaves. Stem wood, which contributes to about 60% of the total biomass of the trees, accumulated high amounts of non-structural N at the end of the dry season, most of which was remobilized during the following rainy season. These results support the hypothesis of efficient internal N recycling, which may be an important determinant for the growth potential of eucalypts on N-poor soils. Harvesting trees late in the rainy season when stem wood is depleted in non-structural N should be recommended to limit the export of nutrients off-site and to improve the sustainability of tropical eucalypt plantations.
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Affiliation(s)
- Dominique Gérant
- UMR Ecologie et Ecophysiologie Forestières, Université de Lorraine, INRA, F-54500, Vandœuvre les Nancy, France
| | - Morgane Pluchon
- UMR Ecologie et Ecophysiologie Forestières, Université de Lorraine, INRA, F-54500, Vandœuvre les Nancy, France
| | - Louis Mareschal
- CIRAD, UMR 111, Ecologie Fonctionnelle et Biogéochimie des Sols et Agrosystèmes, F-34060 Montpellier, France
- CRDPI, BP 1291 Pointe Noire, Republic of Congo
| | | | - Daniel Epron
- UMR Ecologie et Ecophysiologie Forestières, Université de Lorraine, INRA, F-54500, Vandœuvre les Nancy, France
- CIRAD, UMR 111, Ecologie Fonctionnelle et Biogéochimie des Sols et Agrosystèmes, F-34060 Montpellier, France
- CRDPI, BP 1291 Pointe Noire, Republic of Congo
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Onoda Y, Wright IJ, Evans JR, Hikosaka K, Kitajima K, Niinemets Ü, Poorter H, Tosens T, Westoby M. Physiological and structural tradeoffs underlying the leaf economics spectrum. THE NEW PHYTOLOGIST 2017; 214:1447-1463. [PMID: 28295374 DOI: 10.1111/nph.14496] [Citation(s) in RCA: 251] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 01/23/2017] [Indexed: 05/18/2023]
Abstract
The leaf economics spectrum (LES) represents a suite of intercorrelated leaf traits concerning construction costs per unit leaf area, nutrient concentrations, and rates of carbon fixation and tissue turnover. Although broad trade-offs among leaf structural and physiological traits have been demonstrated, we still do not have a comprehensive view of the fundamental constraints underlying the LES trade-offs. Here, we investigated physiological and structural mechanisms underpinning the LES by analysing a novel data compilation incorporating rarely considered traits such as the dry mass fraction in cell walls, nitrogen allocation, mesophyll CO2 diffusion and associated anatomical traits for hundreds of species covering major growth forms. The analysis demonstrates that cell wall constituents are major components of leaf dry mass (18-70%), especially in leaves with high leaf mass per unit area (LMA) and long lifespan. A greater fraction of leaf mass in cell walls is typically associated with a lower fraction of leaf nitrogen (N) invested in photosynthetic proteins; and lower within-leaf CO2 diffusion rates, as a result of thicker mesophyll cell walls. The costs associated with greater investments in cell walls underpin the LES: long leaf lifespans are achieved via higher LMA and in turn by higher cell wall mass fraction, but this inevitably reduces the efficiency of photosynthesis.
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Affiliation(s)
- Yusuke Onoda
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Ian J Wright
- Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - John R Evans
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 0200, Australia
| | - Kouki Hikosaka
- Graduate School of Life Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan
| | - Kaoru Kitajima
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Ülo Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, 51014, Estonia
| | - Hendrik Poorter
- Plant Sciences (IBG-2), Forschungszentrum Jülich GmbH, D-52425, Jülich, Germany
| | - Tiina Tosens
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, 51014, Estonia
| | - Mark Westoby
- Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia
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Vanuytrecht E, Thorburn PJ. Responses to atmospheric CO 2 concentrations in crop simulation models: a review of current simple and semicomplex representations and options for model development. GLOBAL CHANGE BIOLOGY 2017; 23:1806-1820. [PMID: 28134461 DOI: 10.1111/gcb.13600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 11/21/2016] [Accepted: 12/06/2016] [Indexed: 05/22/2023]
Abstract
Elevated atmospheric CO2 concentrations ([CO2 ]) cause direct changes in crop physiological processes (e.g. photosynthesis and stomatal conductance). To represent these CO2 responses, commonly used crop simulation models have been amended, using simple and semicomplex representations of the processes involved. Yet, there is no standard approach to and often poor documentation of these developments. This study used a bottom-up approach (starting with the APSIM framework as case study) to evaluate modelled responses in a consortium of commonly used crop models and illuminate whether variation in responses reflects true uncertainty in our understanding compared to arbitrary choices of model developers. Diversity in simulated CO2 responses and limited validation were common among models, both within the APSIM framework and more generally. Whereas production responses show some consistency up to moderately high [CO2 ] (around 700 ppm), transpiration and stomatal responses vary more widely in nature and magnitude (e.g. a decrease in stomatal conductance varying between 35% and 90% among models was found for [CO2 ] doubling to 700 ppm). Most notably, nitrogen responses were found to be included in few crop models despite being commonly observed and critical for the simulation of photosynthetic acclimation, crop nutritional quality and carbon allocation. We suggest harmonization and consideration of more mechanistic concepts in particular subroutines, for example, for the simulation of N dynamics, as a way to improve our predictive understanding of CO2 responses and capture secondary processes. Intercomparison studies could assist in this aim, provided that they go beyond simple output comparison and explicitly identify the representations and assumptions that are causal for intermodel differences. Additionally, validation and proper documentation of the representation of CO2 responses within models should be prioritized.
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Affiliation(s)
- Eline Vanuytrecht
- Division of Soil and Water management, Department of Earth & Environmental Sciences, KU Leuven, Celestijnenlaan 200E, po 2411, B-3001, Heverlee, Belgium
| | - Peter J Thorburn
- CSIRO Agriculture and Food, 306 Carmody Road, St Lucia, Qld, 4068, Australia
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Bahar NHA, Ishida FY, Weerasinghe LK, Guerrieri R, O'Sullivan OS, Bloomfield KJ, Asner GP, Martin RE, Lloyd J, Malhi Y, Phillips OL, Meir P, Salinas N, Cosio EG, Domingues TF, Quesada CA, Sinca F, Escudero Vega A, Zuloaga Ccorimanya PP, Del Aguila-Pasquel J, Quispe Huaypar K, Cuba Torres I, Butrón Loayza R, Pelaez Tapia Y, Huaman Ovalle J, Long BM, Evans JR, Atkin OK. Leaf-level photosynthetic capacity in lowland Amazonian and high-elevation Andean tropical moist forests of Peru. THE NEW PHYTOLOGIST 2017; 214:1002-1018. [PMID: 27389684 DOI: 10.1111/nph.14079] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 05/23/2016] [Indexed: 05/24/2023]
Abstract
We examined whether variations in photosynthetic capacity are linked to variations in the environment and/or associated leaf traits for tropical moist forests (TMFs) in the Andes/western Amazon regions of Peru. We compared photosynthetic capacity (maximal rate of carboxylation of Rubisco (Vcmax ), and the maximum rate of electron transport (Jmax )), leaf mass, nitrogen (N) and phosphorus (P) per unit leaf area (Ma , Na and Pa , respectively), and chlorophyll from 210 species at 18 field sites along a 3300-m elevation gradient. Western blots were used to quantify the abundance of the CO2 -fixing enzyme Rubisco. Area- and N-based rates of photosynthetic capacity at 25°C were higher in upland than lowland TMFs, underpinned by greater investment of N in photosynthesis in high-elevation trees. Soil [P] and leaf Pa were key explanatory factors for models of area-based Vcmax and Jmax but did not account for variations in photosynthetic N-use efficiency. At any given Na and Pa , the fraction of N allocated to photosynthesis was higher in upland than lowland species. For a small subset of lowland TMF trees examined, a substantial fraction of Rubisco was inactive. These results highlight the importance of soil- and leaf-P in defining the photosynthetic capacity of TMFs, with variations in N allocation and Rubisco activation state further influencing photosynthetic rates and N-use efficiency of these critically important forests.
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Affiliation(s)
- Nur H A Bahar
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - F Yoko Ishida
- Centre for Tropical Environmental and Sustainability Science, College of Marine and Environmental Sciences, James Cook University, Cairns, Qld, Australia
| | - Lasantha K Weerasinghe
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- Faculty of Agriculture, University of Peradeniya, Peradeniya, 20400, Sri Lanka
| | - Rossella Guerrieri
- Centre for Ecological Research and Forestry Applications (CREAF), Universidad Autonoma de Barcelona, Edificio C, 08290, Cerdanyola, Barcelona Spain
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3JN, UK
| | - Odhran S O'Sullivan
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Keith J Bloomfield
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Gregory P Asner
- Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, 94305, USA
| | - Roberta E Martin
- Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, 94305, USA
| | - Jon Lloyd
- Centre for Tropical Environmental and Sustainability Science, College of Marine and Environmental Sciences, James Cook University, Cairns, Qld, Australia
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, SL5 7PY, UK
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK
| | - Oliver L Phillips
- School of Geography, University of Leeds, Woodhouse Lane, Leeds, LS9 2JT, UK
| | - Patrick Meir
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3JN, UK
| | - Norma Salinas
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK
- Seccion Quimica, Pontificia Universidad Católica del Perú, Av Universitaria 1801, San Miguel, Lima, Perú
| | - Eric G Cosio
- Seccion Quimica, Pontificia Universidad Católica del Perú, Av Universitaria 1801, San Miguel, Lima, Perú
| | - Tomas F Domingues
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Sao Paulo, Brazil
| | - Carlos A Quesada
- Instituto Nacional de Pesquisas da Amazonia (INPA), Manaus, Brazil
| | - Felipe Sinca
- Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, 94305, USA
| | - Alberto Escudero Vega
- Seccion Quimica, Pontificia Universidad Católica del Perú, Av Universitaria 1801, San Miguel, Lima, Perú
| | - Paola P Zuloaga Ccorimanya
- Escuela Profesional de Biologia, Universidad Nacional de San Antonio Abad del Cusco, Av de la Cultura, No. 733, Cusco, Perú
| | - Jhon Del Aguila-Pasquel
- Instituto de Investigaciones de la Amazonia Peruana (IIAP), Av. José A. Quiñones km. 2.5, Apartado Postal 784, Iquitos, Perú
- School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive, Houghton, MI, 49931, USA
| | - Katherine Quispe Huaypar
- Escuela Profesional de Biologia, Universidad Nacional de San Antonio Abad del Cusco, Av de la Cultura, No. 733, Cusco, Perú
| | - Israel Cuba Torres
- Escuela Profesional de Biologia, Universidad Nacional de San Antonio Abad del Cusco, Av de la Cultura, No. 733, Cusco, Perú
| | - Rosalbina Butrón Loayza
- Museo de Historia Natural, Universidad Nacional de San Antonio Abad del Cusco, Av de la Cultura, No. 733, Cusco, Perú
| | - Yulina Pelaez Tapia
- Escuela Profesional de Biologia, Universidad Nacional de San Antonio Abad del Cusco, Av de la Cultura, No. 733, Cusco, Perú
| | - Judit Huaman Ovalle
- Escuela Profesional de Biologia, Universidad Nacional de San Antonio Abad del Cusco, Av de la Cultura, No. 733, Cusco, Perú
| | - Benedict M Long
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | - John R Evans
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
| | - Owen K Atkin
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 2601, Australia
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Atkin OK, Bahar NHA, Bloomfield KJ, Griffin KL, Heskel MA, Huntingford C, de la Torre AM, Turnbull MH. Leaf Respiration in Terrestrial Biosphere Models. ADVANCES IN PHOTOSYNTHESIS AND RESPIRATION 2017. [DOI: 10.1007/978-3-319-68703-2_6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Harrison MT, Christie KM, Rawnsley RP. Assessing the reliability of dynamical and historical climate forecasts in simulating hindcast pasture growth rates. ANIMAL PRODUCTION SCIENCE 2017. [DOI: 10.1071/an16492] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A priori knowledge of seasonal pasture growth rates helps livestock farmers plan with pasture supply and feed budgeting. Longer forecasts may allow managers more lead time, yet inaccurate forecasts could lead to counterproductive decisions and foregone income. By using climate forecasts generated from historical archives or the global circulation model (GCM) called the Predictive Ocean Atmosphere Model for Australia (POAMA), we simulated pasture growth rates in a whole-farm model and compared growth-rate forecasts with growth-rate hindcasts (viz. retrospective forecasts). Hindcast pasture growth rates were generated using posterior weather data measured at two sites in north-western Tasmania, Australia. Forecasts were made on a monthly basis for durations of 30, 60 and 90 days. Across sites, forecasting approaches and durations, there were no significant differences between simulated growth-rate forecasts and hindcasts when our statistical inference was conducted using either the Kolmogorov–Smirnov statistic or empirical cumulative distribution functions. However, given that both of these tests were calculated by comparing growth-rate hindcasts with monthly distributions of forecasts, we also examined linear correlations between monthly hindcast values and median monthly growth-rate forecasts. Using this approach, we found a higher correlation between hindcasts and median monthly forecasts for 30 days than for 60 or 90 days, suggesting that monthly growth-rate forecasts provide more skilful predictions than forecast durations of 2 or 3 months. The range in monthly growth-rate forecasts at 30 days was less than that at 60 or 90 days, further reinfocing the aforementioned result. The strength of the correlation between growth-rate hindcasts and median monthly forecasts from the historical approach was similar to that generated using POAMA data. Overall, the present study found that (1) statistical methods of comparing forecast data with hindcast data are important, particularly if the former is a distribution whereas the latter is a single value, (2) 1-month growth-rate forecasts have less uncertainty than forecast durations of 2 or 3 months, and (3) there is little difference between pasture growth rates simulated using climate data from either historical records or from GCMs. To test the generality of these conclusions, the study should be extended to other dairy regions. Including more regions would both enable studies of sites with greater intra-seasonal climate variability, but also better highlight the impact of seasonal and regional variation in forecast skill of POAMA as applied in our forecasting methods.
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Liu N, Guo Q, Ren H, Sun Z. Schima superba outperforms other tree species by changing foliar chemical composition and shortening construction payback time when facilitated by shrubs. Sci Rep 2016; 6:19855. [PMID: 26814426 PMCID: PMC4728492 DOI: 10.1038/srep19855] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 12/18/2015] [Indexed: 11/08/2022] Open
Abstract
A 3.5-year field experiment was conducted in a subtropical degraded shrubland to assess how a nurse plant, the native shrub Rhodomyrtus tomentosa, affects the growth of the target trees Pinus elliottii, Schima superba, Castanopsis fissa, and Michelia macclurei, and to probe the intrinsic mechanisms from leaf chemical composition, construction cost (CC), and payback time aspects. We compared tree seedlings grown nearby shrub canopy (canopy subplots, CS) and in open space (open subplots, OS). S. superba in CS showed greater growth, while P. elliottii and M. macclurei were lower when compared to the plants grown in the OS. The reduced levels of high-cost compounds (proteins) and increased levels of low-cost compounds (organic acids) caused reduced CC values for P. elliottii growing in CS. While, the levels of both low-cost minerals and high-cost proteins increased in CS such that CC values of S. superba were similar in OS and CS. Based on maximum photosynthetic rates, P. elliottii required a longer payback time to construct required carbon in canopy than in OS, but the opposite was true for S. superba. The information from this study can be used to evaluate the potential of different tree species in the reforestation of subtropical degraded shrublands.
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Affiliation(s)
- Nan Liu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Qinfeng Guo
- USDA FS, Eastern Forest Environmental Threat Assessment Center, Research Triangle Park, NC 27709, USA
| | - Hai Ren
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Zhongyu Sun
- Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography, Guangzhou, 510070, China
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Singh V, Gupta S, Singh H, Raghubanshi AS. Ecophysiological characteristics of five weeds and a wheat crop in the Indo-Gangetic Plains, India. WEED BIOLOGY AND MANAGEMENT 2015; 15:102-112. [PMID: 32834774 PMCID: PMC7169674 DOI: 10.1111/wbm.12073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 05/04/2015] [Indexed: 06/11/2023]
Abstract
The objective of this research was to compare selected ecophysiological parameters for a wheat crop found in the Indo-Gangetic Plains of India and its five dominant weeds. The dominant and regionally ubiquitous weeds in the wheat field that was selected for the study were Anagallis arvensis, Chenopodium album, Melilotus albus, Phalaris minor and Rumex dentatus. Taller weeds, such as C. album and P. minor, constituted one group along with the crop, with a low photosynthetic rate, specific leaf area, leaf nitrogen mass basis, chlorophyll content, photosynthetic nitrogen-use efficiency and leaf area ratio, in comparison to shorter weeds, such as A. arvensis, M. albus and R. dentatus, which formed another group with a high photosynthetic rate, specific leaf area, leaf nitrogen mass basis, chlorophyll content, photosynthetic nitrogen-use efficiency and leaf area ratio. Interspecific variations in the photosynthetic rate were driven mainly by variability in the specific leaf area and leaf nitrogen content. The taller weeds and the crop had a low specific leaf area later in the season, whereas the smaller weeds had a relatively high specific leaf area, which might be an adaptation to the shaded environment below the canopy. The result indicates that any weed management in the wheat fields of the Indo-Gangetic Plains will need two different approaches because of the different strategies followed by the two weed groups that were identified in the present study.
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Affiliation(s)
- Vartika Singh
- Ecosystems Analysis LaboratoryBanaras Hindu UniversityVaranasiIndia
| | - Sweta Gupta
- Ecosystems Analysis LaboratoryBanaras Hindu UniversityVaranasiIndia
| | - Hema Singh
- Ecosystems Analysis LaboratoryBanaras Hindu UniversityVaranasiIndia
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Atkin OK, Bloomfield KJ, Reich PB, Tjoelker MG, Asner GP, Bonal D, Bönisch G, Bradford MG, Cernusak LA, Cosio EG, Creek D, Crous KY, Domingues TF, Dukes JS, Egerton JJG, Evans JR, Farquhar GD, Fyllas NM, Gauthier PPG, Gloor E, Gimeno TE, Griffin KL, Guerrieri R, Heskel MA, Huntingford C, Ishida FY, Kattge J, Lambers H, Liddell MJ, Lloyd J, Lusk CH, Martin RE, Maksimov AP, Maximov TC, Malhi Y, Medlyn BE, Meir P, Mercado LM, Mirotchnick N, Ng D, Niinemets Ü, O'Sullivan OS, Phillips OL, Poorter L, Poot P, Prentice IC, Salinas N, Rowland LM, Ryan MG, Sitch S, Slot M, Smith NG, Turnbull MH, VanderWel MC, Valladares F, Veneklaas EJ, Weerasinghe LK, Wirth C, Wright IJ, Wythers KR, Xiang J, Xiang S, Zaragoza-Castells J. Global variability in leaf respiration in relation to climate, plant functional types and leaf traits. THE NEW PHYTOLOGIST 2015; 206:614-36. [PMID: 25581061 DOI: 10.1111/nph.13253] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 11/29/2014] [Indexed: 05/18/2023]
Abstract
Leaf dark respiration (Rdark ) is an important yet poorly quantified component of the global carbon cycle. Given this, we analyzed a new global database of Rdark and associated leaf traits. Data for 899 species were compiled from 100 sites (from the Arctic to the tropics). Several woody and nonwoody plant functional types (PFTs) were represented. Mixed-effects models were used to disentangle sources of variation in Rdark . Area-based Rdark at the prevailing average daily growth temperature (T) of each site increased only twofold from the Arctic to the tropics, despite a 20°C increase in growing T (8-28°C). By contrast, Rdark at a standard T (25°C, Rdark (25) ) was threefold higher in the Arctic than in the tropics, and twofold higher at arid than at mesic sites. Species and PFTs at cold sites exhibited higher Rdark (25) at a given photosynthetic capacity (Vcmax (25) ) or leaf nitrogen concentration ([N]) than species at warmer sites. Rdark (25) values at any given Vcmax (25) or [N] were higher in herbs than in woody plants. The results highlight variation in Rdark among species and across global gradients in T and aridity. In addition to their ecological significance, the results provide a framework for improving representation of Rdark in terrestrial biosphere models (TBMs) and associated land-surface components of Earth system models (ESMs).
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Affiliation(s)
- Owen K Atkin
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Building 134, Canberra, ACT, 0200, Australia; Division of Plant Sciences, Research School of Biology, The Australian National University, Building 46, Canberra, ACT, 0200, Australia
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Cai YF, Li SF, Li SF, Xie WJ, Song J. How do leaf anatomies and photosynthesis of three Rhododendron species relate to their natural environments? BOTANICAL STUDIES 2014; 55:36. [PMID: 28510962 PMCID: PMC5432949 DOI: 10.1186/1999-3110-55-36] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 11/07/2013] [Indexed: 05/12/2023]
Abstract
BACKGROUND Rhododendron is one of the most well-known alpine flowers. In order to identify performances relating to Rhododendron's natural habitats we investigated the leaf anatomical structures and photosynthetic characteristics of R. yunnanense, R. irroratum and R. delavayi, which showed different responses after being transplanted into a common environment. RESULTS When compared with R. irroratum and R. delavayi, R. yunnanense had lower leaf dry mass per unit area (LMA) and larger stomata, but smaller stomatal density (SD) and total stomata apparatus area percent (At), lower stomatal conductance (Gs), transpiration rate (Tr), light compensation point (LCP), light saturation point (LSP), light-saturated photosynthetic rate (Amax) and leaf nitrogen content per unit area (Na). LMA was positively correlated with Amax and maximum rates of carboxylation (Vcmax). However, leaf N content was not significantly correlated with Amax. Thus, the variation in leaf photosynthesis among species was regulated largely by changes in LMA, rather than the concent of nitrogen in leaf tissue. CONCLUSIONS R. yunnanense plants are vulnerable to moisture and light stress, while R. irroratum and R. delavayi are better suited to dry and high radiation environments. The present results contribute to our understanding physiological trait divergence in Rhododendron, as well benefit introduction and domestication efforts for the three species of Rhododendron studied in this work.
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Affiliation(s)
- Yan-Fei Cai
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, 650205 China
- Yunnan Flower Breeding Key Lab, Kunming, 650204 China
- Yunnan Flower Research and Development Center, Kunming, 650205 China
| | - Shi-Feng Li
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, 650205 China
- Yunnan Flower Breeding Key Lab, Kunming, 650204 China
- Yunnan Flower Research and Development Center, Kunming, 650205 China
| | - Shu-Fa Li
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, 650205 China
- Yunnan Flower Breeding Key Lab, Kunming, 650204 China
- Yunnan Flower Research and Development Center, Kunming, 650205 China
| | - Wei-Jia Xie
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, 650205 China
- Yunnan Flower Breeding Key Lab, Kunming, 650204 China
- Yunnan Flower Research and Development Center, Kunming, 650205 China
| | - Jie Song
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, 650205 China
- Yunnan Flower Breeding Key Lab, Kunming, 650204 China
- Yunnan Flower Research and Development Center, Kunming, 650205 China
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Bloomfield KJ, Farquhar GD, Lloyd J. Photosynthesis-nitrogen relationships in tropical forest tree species as affected by soil phosphorus availability: a controlled environment study. FUNCTIONAL PLANT BIOLOGY : FPB 2014; 41:820-832. [PMID: 32481036 DOI: 10.1071/fp13278] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 02/17/2014] [Indexed: 06/11/2023]
Abstract
Tropical soils are often characterised by low phosphorus availability and tropical forest trees typically exhibit lower area-based rates of photosynthesis (Aa) for a given area-based leaf nitrogen concentration ([N]a) compared with plants growing in higher-latitude, N-limited ecosystems. Nevertheless, to date, very few studies have assessed the effects of P deprivation per se on Aa⟷[N]a relationships in tropical trees. Our study investigated the effect of reduced soil P availability on light-saturated Aa and related leaf traits of seven Australian tropical tree species. We addressed the following questions: (1) Do contrasting species exhibit inherent differences in nutrient partitioning and morphology? (2) Does P deprivation lead to a change in the nature of the Aa⟷[N]a relationship? (3) Does P deprivation lead to an alteration in leaf nitrogen levels or N allocation within the leaf? Applying a mixed effects model, we found that for these Australian tropical tree species, removal of P from the nutrient solution decreased area-based photosynthetic capacity (Amax,a) by 18% and reduced the slope of the Amax,a⟷[N]a relationship and differences among species accounted for around 30% of response variation. Despite greater N allocation to chlorophyll, photosynthetic N use efficiency was significantly reduced in low-P plants. Collectively, our results support the view that low soil P availability can alter photosynthesis-nitrogen relationships in tropical trees.
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Affiliation(s)
| | - Graham D Farquhar
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT 0200, Australia
| | - Jon Lloyd
- Grand Challenges in Ecosystems and the Environment Initiative, Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot SL5 7PY, Berkshire, UK
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Roelofsen HD, van Bodegom PM, Kooistra L, Witte JPM. Predicting leaf traits of herbaceous species from their spectral characteristics. Ecol Evol 2014; 4:706-19. [PMID: 24683454 PMCID: PMC3967897 DOI: 10.1002/ece3.932] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 12/04/2013] [Accepted: 12/05/2013] [Indexed: 11/11/2022] Open
Abstract
Trait predictions from leaf spectral properties are mainly applied to tree species, while herbaceous systems received little attention in this topic. Whether similar trait-spectrum relations can be derived for herbaceous plants that differ strongly in growing strategy and environmental constraints is therefore unknown. We used partial least squares regression to relate key traits to leaf spectra (reflectance, transmittance, and absorbance) for 35 herbaceous species, sampled from a wide range of environmental conditions. Specific Leaf Area and nutrient-related traits (N and P content) were poorly predicted from any spectrum, although N prediction improved when expressed on a per area basis (mg/m(2) leaf surface) instead of mass basis (mg/g dry matter). Leaf dry matter content was moderately to good correlated with spectra. We explain our results by the range of environmental constraints encountered by herbaceous species; both N and P limitations as well as a range of light and water availabilities occurred. This weakened the relation between the measured response traits and the leaf constituents that are truly responsible for leaf spectral behavior. Indeed, N predictions improve considering solely upper or under canopy species. Therefore, trait predictions in herbaceous systems should focus on traits relating to dry matter content and the true, underlying drivers of spectral properties.
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Affiliation(s)
| | - Peter M van Bodegom
- Department of Ecological science, Subdepartment Systems Ecology, VU UniversityAmsterdam, The Netherlands
| | - Lammert Kooistra
- Laboratory for Geo-Information Science and Remote Sensing, Wageningen UniversityWageningen, The Netherlands
| | - Jan-Philip M Witte
- KWR Watercycle Research InstituteNieuwegein, The Netherlands
- Department of Ecological science, Subdepartment Systems Ecology, VU UniversityAmsterdam, The Netherlands
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Funk JL. The physiology of invasive plants in low-resource environments. CONSERVATION PHYSIOLOGY 2013; 1:cot026. [PMID: 27293610 PMCID: PMC4806624 DOI: 10.1093/conphys/cot026] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/29/2013] [Accepted: 08/28/2013] [Indexed: 05/03/2023]
Abstract
While invasive plant species primarily occur in disturbed, high-resource environments, many species have invaded ecosystems characterized by low nutrient, water, and light availability. Species adapted to low-resource systems often display traits associated with resource conservation, such as slow growth, high tissue longevity, and resource-use efficiency. This contrasts with our general understanding of invasive species physiology derived primarily from studies in high-resource environments. These studies suggest that invasive species succeed through high resource acquisition. This review examines physiological and morphological traits of native and invasive species in low-resource environments. Existing data support the idea that species invading low-resource environments possess traits associated with resource acquisition, resource conservation or both. Disturbance and climate change are affecting resource availability in many ecosystems, and understanding physiological differences between native and invasive species may suggest ways to restore invaded ecosystems.
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Affiliation(s)
- Jennifer L. Funk
- School of Earth and Environmental Sciences, Chapman University, Orange, CA 92866, USA
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45
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Lloyd J, Bloomfield K, Domingues TF, Farquhar GD. Photosynthetically relevant foliar traits correlating better on a mass vs an area basis: of ecophysiological relevance or just a case of mathematical imperatives and statistical quicksand? THE NEW PHYTOLOGIST 2013; 199:311-321. [PMID: 23621613 DOI: 10.1111/nph.12281] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Jon Lloyd
- Centre for Tropical Environmental and Sustainability Science (TESS), School of Earth and Environmental Sciences, James Cook University, Cairns, Queensland, 4878, Australia
- School of Geography, University of Leeds, Leeds, UK
| | - Keith Bloomfield
- School of Geography, University of Leeds, Leeds, UK
- Research School of Biology, Australian National University, Canberra, 0200, ACT, Australia
| | - Tomas F Domingues
- Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Univeridade de São Paulo, São Paulo, Brazil
| | - Graham D Farquhar
- Research School of Biology, Australian National University, Canberra, 0200, ACT, Australia
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Funk JL, Glenwinkel LA, Sack L. Differential allocation to photosynthetic and non-photosynthetic nitrogen fractions among native and invasive species. PLoS One 2013; 8:e64502. [PMID: 23700483 PMCID: PMC3659119 DOI: 10.1371/journal.pone.0064502] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Accepted: 04/16/2013] [Indexed: 11/18/2022] Open
Abstract
Invasive species are expected to cluster on the "high-return" end of the leaf economic spectrum, displaying leaf traits consistent with higher carbon assimilation relative to native species. Intra-leaf nitrogen (N) allocation should support these physiological differences; however, N biochemistry has not been examined in more than a few invasive species. We measured 34 leaf traits including seven leaf N pools for five native and five invasive species from Hawaii under low irradiance to mimic the forest understory environment. We found several trait differences between native and invasive species. In particular, invasive species showed preferential N allocation to metabolism (amino acids) rather than photosynthetic light reactions (membrane-bound protein) by comparison with native species. The soluble protein concentration did not vary between groups. Under these low irradiance conditions, native species had higher light-saturated photosynthetic rates, possibly as a consequence of a greater investment in membrane-bound protein. Invasive species may succeed by employing a wide range of N allocation mechanisms, including higher amino acid production for fast growth under high irradiance or storage of N in leaves as soluble protein or amino acids.
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Affiliation(s)
- Jennifer L Funk
- School of Earth and Environmental Sciences, Chapman University, Orange, California, USA.
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Novriyanti E, Watanabe M, Kitao M, Utsugi H, Uemura A, Koike T. High nitrogen and elevated [CO2] effects on the growth, defense and photosynthetic performance of two eucalypt species. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 170:124-130. [PMID: 22784683 DOI: 10.1016/j.envpol.2012.06.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 06/03/2012] [Accepted: 06/05/2012] [Indexed: 05/27/2023]
Abstract
Atmospheric nitrogen deposition and [CO(2)] are increasing and represent environmental problems. Planting fast-growing species is prospering to moderate these environmental impacts by fixing CO(2). Therefore, we examined the responses of growth, photosynthesis, and defense chemical in leaves of Eucalyptus urophylla (U) and the hybrid of E. deglupta × E. camadulensis (H) to different CO(2) and nitrogen levels. High nitrogen load significantly increased plant growth, leaf N, net photosynthetic rate (A(growth)), and photosynthetic water use efficiency (WUE). High CO(2) significantly increased A(growth), photosynthetic nitrogen use efficiency (PNUE) and WUE. Secondary metabolite (SM, i.e. total phenolics and condensed tannin) was specifically altered; as SM of U increased by high N load but not by elevated [CO(2)], and vice versa for SM of H.
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Affiliation(s)
- Eka Novriyanti
- Research Institute of Fiber Technology for Plantation Forest, FORDA, Ministry of Forestry, Kotak Pos 4/BKN, Bangkinang 28401, Riau, Indonesia.
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Wyka TP, Oleksyn J, Zytkowiak R, Karolewski P, Jagodziński AM, Reich PB. Responses of leaf structure and photosynthetic properties to intra-canopy light gradients: a common garden test with four broadleaf deciduous angiosperm and seven evergreen conifer tree species. Oecologia 2012; 170:11-24. [PMID: 22349756 PMCID: PMC3422461 DOI: 10.1007/s00442-012-2279-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 01/30/2012] [Indexed: 11/25/2022]
Abstract
Spectra of leaf traits in northern temperate forest canopies reflect major differences in leaf longevity between evergreen conifers and deciduous broadleaf angiosperms, as well as plastic modifications caused by within-crown shading. We investigated (1) whether long-lived conifer leaves exhibit similar intra-canopy plasticity as short-lived broadleaves, and (2) whether global interspecific relationships between photosynthesis, nitrogen, and leaf structure identified for sun leaves adequately describe leaves differentiated in response to light gradients. We studied structural and photosynthetic properties of intra-tree sun and shade foliage in adult trees of seven conifer and four broadleaf angiosperm species in a common garden in Poland. Shade leaves exhibited lower leaf mass-per-area (LMA) than sun leaves; however, the relative difference was smaller in conifers than in broadleaves. In broadleaves, LMA was correlated with lamina thickness and tissue density, while in conifers, it was correlated with thickness but not density. In broadleaves, but not in conifers, reduction of lamina thickness was correlated with a thinner palisade layer. The more conservative adjustment of conifer leaves could result from a combination of phylogenetic constraints, contrasting leaf anatomies and shoot geometries, but also from functional requirements of long-lived foliage. Mass-based nitrogen concentration (N(mass)) was similar between sun and shade leaves, and was lower in conifers than in deciduous broadleaved species. Given this, the smaller LMA in shade corresponded with a lower area-based N concentration (N(area)). In evergreen conifers, LMA and N(area) were less powerful predictors of area-based photosynthetic rate (A (max(area))) in comparison with deciduous broadleaved angiosperms. Multiple regression for sun and shade leaves showed that, in each group, A (max(mass)) was related to N(mass) but not to LMA, whereas LMA became a significant codeterminant of A (max(mass)) in analysis combining both groups. Thus, a fundamental mass-based relationship between photosynthesis, nitrogen, and leaf structure reported previously also exists in a dataset combining within-crown and across-functional type variation.
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Affiliation(s)
- Tomasz P Wyka
- Laboratory of General Botany, Institute of Experimental Biology, Department of Biology, Adam Mickiewicz University, Umultowska 89, 61-614, Poznań, Poland.
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Maire V, Martre P, Kattge J, Gastal F, Esser G, Fontaine S, Soussana JF. The coordination of leaf photosynthesis links C and N fluxes in C3 plant species. PLoS One 2012; 7:e38345. [PMID: 22685562 PMCID: PMC3369925 DOI: 10.1371/journal.pone.0038345] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 05/03/2012] [Indexed: 11/19/2022] Open
Abstract
Photosynthetic capacity is one of the most sensitive parameters in vegetation models and its relationship to leaf nitrogen content links the carbon and nitrogen cycles. Process understanding for reliably predicting photosynthetic capacity is still missing. To advance this understanding we have tested across C(3) plant species the coordination hypothesis, which assumes nitrogen allocation to photosynthetic processes such that photosynthesis tends to be co-limited by ribulose-1,5-bisphosphate (RuBP) carboxylation and regeneration. The coordination hypothesis yields an analytical solution to predict photosynthetic capacity and calculate area-based leaf nitrogen content (N(a)). The resulting model linking leaf photosynthesis, stomata conductance and nitrogen investment provides testable hypotheses about the physiological regulation of these processes. Based on a dataset of 293 observations for 31 species grown under a range of environmental conditions, we confirm the coordination hypothesis: under mean environmental conditions experienced by leaves during the preceding month, RuBP carboxylation equals RuBP regeneration. We identify three key parameters for photosynthetic coordination: specific leaf area and two photosynthetic traits (k(3), which modulates N investment and is the ratio of RuBP carboxylation/oxygenation capacity (V(Cmax)) to leaf photosynthetic N content (N(pa)); and J(fac), which modulates photosynthesis for a given k(3) and is the ratio of RuBP regeneration capacity (J(max)) to V(Cmax)). With species-specific parameter values of SLA, k(3) and J(fac), our leaf photosynthesis coordination model accounts for 93% of the total variance in N(a) across species and environmental conditions. A calibration by plant functional type of k(3) and J(fac) still leads to accurate model prediction of N(a), while SLA calibration is essentially required at species level. Observed variations in k(3) and J(fac) are partly explained by environmental and phylogenetic constraints, while SLA variation is partly explained by phylogeny. These results open a new avenue for predicting photosynthetic capacity and leaf nitrogen content in vegetation models.
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Affiliation(s)
| | - Pierre Martre
- INRA, UMR1095 GDEC, Clermont-Ferrand, France
- Blaise Pascal University, UMR1095 GDEC, Aubière, France
| | - Jens Kattge
- Max Planck Institute for Biogeochemistry, Jena, Germany
| | | | - Gerd Esser
- Justus Liebig University, Institute for Plant Ecology, Giessen, Germany
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50
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Smith RA, Lewis JD, Ghannoum O, Tissue DT. Leaf structural responses to pre-industrial, current and elevated atmospheric [CO 2] and temperature affect leaf function in Eucalyptus sideroxylon. FUNCTIONAL PLANT BIOLOGY : FPB 2012; 39:285-296. [PMID: 32480781 DOI: 10.1071/fp11238] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2011] [Accepted: 01/16/2012] [Indexed: 06/11/2023]
Abstract
Leaf structure and chemistry both play critical roles in regulating photosynthesis. Yet, a key unresolved issue in climate change research is the role of changes in leaf structure in photosynthetic responses to temperature and atmospheric CO2 concentration ([CO2]), ranging from pre-industrial to future levels. We examined the interactive effects of [CO2] (290, 400 and 650μLL-1) and temperature (ambient, ambient +4°C) on leaf structural and chemical traits that regulate photosynthesis in Eucalyptus sideroxylon A.Cunn. ex Woolls. Rising [CO2] from pre-industrial to elevated levels increased light-saturated net photosynthetic rates (Asat), but reduced photosynthetic capacity (Amax). Changes in leaf N per unit area (Narea) and the number of palisade layers accounted for 56 and 14% of the variation in Amax, respectively, associated with changes in leaf mass per area. Elevated temperature increased stomatal frequency, but did not affect Amax. Further, rising [CO2] and temperature generally did not interactively affect leaf structure or function. These results suggest that leaf Narea and the number of palisade layers are the key chemical and structural factors regulating photosynthetic capacity of E. sideroxylon under rising [CO2], whereas the lack of photosynthetic responses to elevated temperature may reflect the limited effect of temperature on leaf structure and chemistry.
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Affiliation(s)
- Renee A Smith
- University of Western Sydney, Hawkesbury Institute for the Environment, Richmond, NSW 2753, Australia
| | - James D Lewis
- University of Western Sydney, Hawkesbury Institute for the Environment, Richmond, NSW 2753, Australia
| | - Oula Ghannoum
- University of Western Sydney, Hawkesbury Institute for the Environment, Richmond, NSW 2753, Australia
| | - David T Tissue
- University of Western Sydney, Hawkesbury Institute for the Environment, Richmond, NSW 2753, Australia
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