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Dry Climate Filters Gymnosperms but Not Angiosperms through Seed Mass. DIVERSITY 2023. [DOI: 10.3390/d15030401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
In the context of climate change in recent years, the fate of woody plant seed has an important impact on forest regeneration. Seed mass is an important reproductive strategy of plants. There are huge differences between gymnosperms (mainly conifers) and angiosperms (flowering plants) in terms of reproduction and hydraulic strategies; however, little is known about changes in seed mass along climate aridity gradients between taxonomical groups such as gymnosperms and angiosperms, which limit our understanding on the fate of woody plants under warming-induced climate drying. We collected seed mass data from a total of 2575 woody plant individuals, including 145 species of gymnosperms and 1487 species of angiosperms, across different climatic zones in China. We mapped the distribution pattern of gymnosperm and angiosperm seed mass in China, with angiosperms being maximal near the 400 mm iso-precipitation line. Our phylogenetic analysis results show that seed mass exhibited significant phylogenic signals (p < 0.001) and was also strongly influenced by functional traits (growth type, fruit type, and dispersal mode). The results of linear regression and hierarchical partitioning analysis showed a stronger correlation between gymnosperm seed mass and environmental factors, and a higher independent aridity index effect on gymnosperm seed mass than angiosperm seed mass. The different patterns of seed mass along a climate aridity gradient between gymnosperms and angiosperms may point to different future fates for these two taxonomic groups, while the higher sensitivity of gymnosperm seed mass to environmental conditions may reduce their reproductive rate under the background of climate warming and drying.
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Inoue T, Yamada Y, Noguchi K. Growth temperature affects O 2 consumption rates and plasticity of respiratory flux to support shoot growth at various growth temperatures. PLANT, CELL & ENVIRONMENT 2022; 45:133-146. [PMID: 34719799 DOI: 10.1111/pce.14217] [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: 06/30/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
The temperature dependence of respiration rates and their acclimation to growth temperature vary among species/ecotypes, but the details remain unclear. Here, we compared the temperature dependence of shoot O2 consumption rates among Arabidopsis thaliana ecotypes to clarify how the temperature dependence and their acclimation to temperature differ among ecotypes, and how these differences relate to shoot growth. We examined growth analysis, temperature dependence of O2 consumption rates, and protein amounts of the respiratory chain components in shoots of twelve ecotypes of A. thaliana grown at three different temperatures. The temperature dependence of the O2 consumption rates were fitted to the modified Arrhenius model. The dynamic response of activation energy to measurement temperature was different among growth temperatures, suggesting that the plasticity of respiratory flux to temperatures differs among growth temperatures. The similar values of activation energy at growth temperature among ecotypes suggest that a similar process may determine the O2 consumption rates at the growth temperature in any ecotype. These results suggest that the growth temperature affects not only the absolute rate of O2 consumption but also the plasticity of respiratory flux in response to temperature, supporting the acclimation of shoot growth to various temperatures.
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Affiliation(s)
- Tomomi Inoue
- National Institute for Environmental Studies, Ibaraki, Japan
| | - Yusuke Yamada
- School of Life Science, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Ko Noguchi
- School of Life Science, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
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de Santana Costa MG, Feltrim D, Mazzafera P, Balbuena TS. Revisiting the stem proteome of Eucalyptus grandis and Eucalyptus globulus: Identification of temperature-induced changes. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2020; 1868:140530. [PMID: 32853770 DOI: 10.1016/j.bbapap.2020.140530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/13/2020] [Accepted: 08/15/2020] [Indexed: 11/25/2022]
Abstract
Eucalyptus grandis and Eucalyptus globulus are important species for the Brazilian forestry industry. E. grandis plantations are mainly found in tropical regions, yet E. globulus plants are usually cultivated under moderate to low temperature conditions. As temperature seems to be a key factor for the planting of these species, we revisited our previously generated shotgun proteomics dataset to identify the main patterns of proteome regulation induced by thermal stimulus and to pinpoint specific proteins involved in the environmental response. Large-scale analysis has pointed out the different proteomic responses of E. grandis and E. globulus under temperature stimulus, with 296 proteins considered to be differentially regulated in the stems of Eucalyptus spp. grown at different temperatures. A stringent filtering approach was used to identify the most differentially regulated proteins. Through the stringent criteria, 66 proteins were found to be enriched in the plant species. Cultivation of E. globulus plants in low-temperature conditions induced the highest number of differentially regulated proteins. Additionally, metabolic proteins were mostly down-regulated, while stress-related proteins were majorly up-regulated in both species. Finally, the subset of the most differentially regulated proteins comprised new candidates of protein markers of temperature stress.
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Affiliation(s)
| | - Daniela Feltrim
- University of Campinas (UNICAMP), Institute of Biology, Campinas, SP, Brazil
| | - Paulo Mazzafera
- University of Campinas (UNICAMP), Institute of Biology, Campinas, SP, Brazil
| | - Tiago Santana Balbuena
- São Paulo State University (UNESP), School of Agriculture and Veterinary Sciences, Jaboticabal, SP, Brazil.
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Yu S, Mo Q, Chen Y, Li Y, Li Y, Zou B, Xia H, Jun W, Li Z, Wang F. Effects of seasonal precipitation change on soil respiration processes in a seasonally dry tropical forest. Ecol Evol 2020; 10:467-479. [PMID: 31988737 PMCID: PMC6972815 DOI: 10.1002/ece3.5912] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/11/2019] [Accepted: 11/15/2019] [Indexed: 11/10/2022] Open
Abstract
Precipitation is projected to change intensity and seasonal regime under current global projections. However, little is known about how seasonal precipitation changes will affect soil respiration, especially in seasonally dry tropical forests. In a seasonally dry tropical forest in South China, we conducted a precipitation manipulation experiment to simulate a delayed wet season (DW) and a wetter wet season (WW) over a three-year period. In DW, we reduced 60% throughfall in April and May to delay the onset of the wet season and irrigated the same amount water into the plots in October and November to extend the end of the wet season. In WW, we irrigated 25% annual precipitation into plots in July and August. A control treatment (CT) receiving ambient precipitation was also established. Compared with CT, DW significantly increased soil moisture by 54% during October to November, and by 30% during December to April. The treatment of WW did not significantly affect monthly measured soil moisture. In 2015, DW significantly increased leaf area index and soil microbial biomass but decreased fine root biomass. In contrast, WW significantly decreased fine root biomass and forest floor litter stocks. Soil respiration was not affected by DW, which could be attributed to the increased microbial biomass offsetting the decrease in fine root biomass. In contrast, WW significantly increased soil respiration from 3.40 to 3.90 μmol m-2 s-1 in the third year, mainly due to the increased litter decomposition and soil pH (from 4.48 to 4.68). The present study suggests that both a delayed wet season and a wetter wet season will have significant impacts on soil respiration-associated ecosystem components. However, the ecosystem components can respond in different directions to the same change in precipitation, which ultimately affected soil respiration.
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Affiliation(s)
- Shiqin Yu
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
- University of Chinese Academy of SciencesBeijingChina
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)GuangzhouChina
| | - Qifeng Mo
- College of Forestry and ArchitectureSouth China Agricultural UniversityGuangzhouChina
| | - Yuanqi Chen
- Hunan Province Key Laboratory of Coal Resources Clean‐utilization and Mine Environment ProtectionHunan University of Science and TechnologyXiangtanChina
| | - Yingwen Li
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)GuangzhouChina
| | - Yongxing Li
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)GuangzhouChina
| | - Bi Zou
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)GuangzhouChina
| | - Hanping Xia
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)GuangzhouChina
| | - Wang Jun
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
| | - Zhian Li
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)GuangzhouChina
| | - Faming Wang
- Xiaoliang Research Station for Tropical Coastal EcosystemsKey Laboratory of Vegetation Restoration and Management of Degraded EcosystemsGuangzhouChina
- The CAS engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)GuangzhouChina
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Kruse J, Adams M, Winkler B, Ghirardo A, Alfarraj S, Kreuzwieser J, Hedrich R, Schnitzler JP, Rennenberg H. Optimization of photosynthesis and stomatal conductance in the date palm Phoenix dactylifera during acclimation to heat and drought. THE NEW PHYTOLOGIST 2019; 223:1973-1988. [PMID: 31093986 DOI: 10.1111/nph.15923] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 05/01/2019] [Indexed: 05/25/2023]
Abstract
We studied acclimation of leaf gas exchange to differing seasonal climate and soil water availability in slow-growing date palm (Phoenix dactylifera) seedlings. We used an extended Arrhenius equation to describe instantaneous temperature responses of leaf net photosynthesis (A) and stomatal conductance (G), and derived physiological parameters suitable for characterization of acclimation (Topt , Aopt and Tequ ). Optimum temperature of A (Topt ) ranged between 20-33°C in winter and 28-45°C in summer. Growth temperature (Tgrowth ) explained c. 50% of the variation in Topt , which additionally depended on leaf water status at the time of measurement. During water stress, light-saturated rates of A at Topt (i.e. Aopt ) were reduced to 30-80% of control levels, albeit not limited by CO2 supply per se. Equilibrium temperature (Tequ ), around which A/G and substomatal [CO2 ] are constant, remained tightly coupled with Topt . Our results suggest that acclimatory shifts in Topt and Aopt reflect a balance between maximization of photosynthesis and minimization of the risk of metabolic perturbations caused by imbalances in cellular [CO2 ]. This novel perspective on acclimation of leaf gas exchange is compatible with optimization theory, and might help to elucidate other acclimation and growth strategies in species adapted to differing climates.
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Affiliation(s)
- Jörg Kruse
- Institute of Forest Sciences, Chair of Tree Physiology, University of Freiburg, Georges-Köhler-Allee 53/54, Freiburg, 79110, Germany
- Faculty of Agriculture and Environment, University of Sydney, Sydney, NSW, 2006, Australia
| | - Mark Adams
- Faculty of Agriculture and Environment, University of Sydney, Sydney, NSW, 2006, Australia
- Swinburne University of Technology, John St., Hawthorn, Vic., 3122, Australia
| | - Barbro Winkler
- Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Andrea Ghirardo
- Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Saleh Alfarraj
- College of Sciences, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Jürgen Kreuzwieser
- Institute of Forest Sciences, Chair of Tree Physiology, University of Freiburg, Georges-Köhler-Allee 53/54, Freiburg, 79110, Germany
| | - Rainer Hedrich
- Institute for Molecular Plant Physiology and Biophysics, Biocenter, University of Würzburg, Würzburg, 97082, Germany
| | - Jörg-Peter Schnitzler
- Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Heinz Rennenberg
- Institute of Forest Sciences, Chair of Tree Physiology, University of Freiburg, Georges-Köhler-Allee 53/54, Freiburg, 79110, Germany
- College of Sciences, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
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Kruse J, Rennenberg H, Adams MA. Three physiological parameters capture variation in leaf respiration of Eucalyptus grandis, as elicited by short-term changes in ambient temperature, and differing nitrogen supply. PLANT, CELL & ENVIRONMENT 2018; 41:1369-1382. [PMID: 29424929 DOI: 10.1111/pce.13162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/28/2018] [Accepted: 01/30/2018] [Indexed: 06/08/2023]
Abstract
We used instantaneous temperature responses of CO2 -respiration to explore temperature acclimation dynamics for Eucalyptus grandis grown with differing nitrogen supply. A reduction in ambient temperature from 23 to 19 °C reduced light-saturated photosynthesis by 25% but increased respiratory capacity by 30%. Changes in respiratory capacity were not reversed after temperatures were subsequently increased to 27 °C. Temperature sensitivity of respiration measured at prevalent ambient temperature varied little between temperature treatments but was significantly reduced from ~105 kJ mol-1 when supply of N was weak, to ~70 kJ mol-1 when it was strong. Temperature sensitivity of respiration measured across a broader temperature range (20-40 °C) could be fully described by 2 exponent parameters of an Arrhenius-type model (i.e., activation energy of respiration at low reference temperature and a parameter describing the temperature dependence of activation energy). These 2 parameters were strongly correlated, statistically explaining 74% of observed variation. Residual variation was linked to treatment-induced changes in respiration at low reference temperature or respiratory capacity. Leaf contents of starch and soluble sugars suggest that respiratory capacity varies with source-sink imbalances in carbohydrate utilization, which in combination with shifts in carbon-flux mode, serve to maintain homeostasis of respiratory temperature sensitivity at prevalent growth temperature.
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Affiliation(s)
- Jörg Kruse
- Institute of Forest Sciences, Chair of Tree Physiology, Georges-Köhler-Allee 53/54, 79110, Freiburg, Germany
| | - Heinz Rennenberg
- Institute of Forest Sciences, Chair of Tree Physiology, Georges-Köhler-Allee 53/54, 79110, Freiburg, Germany
| | - Mark A Adams
- Centre for Carbon Water and Food, The University of Sydney, Sydney, NSW, 2006, Australia
- Swiunburne University of Technology, John Street, Hawthorn, 3122, Victoria, Australia
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Different models provide equivalent predictive power for cross-biome response of leaf respiration to temperature. Proc Natl Acad Sci U S A 2016; 113:E5993-E5995. [PMID: 27702908 DOI: 10.1073/pnas.1608562113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Kruse J, Alfarraj S, Rennenberg H, Adams M. A novel mechanistic interpretation of instantaneous temperature responses of leaf net photosynthesis. PHOTOSYNTHESIS RESEARCH 2016; 129:43-58. [PMID: 27220614 DOI: 10.1007/s11120-016-0262-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 04/11/2016] [Indexed: 05/16/2023]
Abstract
Steady-state rates of leaf CO2 assimilation (A) in response to incubation temperature (T) are often symmetrical around an optimum temperature. A/T curves of C3 plants can thus be fitted to a modified Arrhenius equation, where the activation energy of A close to a low reference temperature is strongly correlated with the dynamic change of activation energy to increasing incubation temperature. We tested how [CO2] < current atmospheric levels and saturating light, or [CO2] at 800 µmol mol(-1) and variable light affect parameters that describe A/T curves, and how these parameters are related to known properties of temperature-dependent thylakoid electron transport. Variation of light intensity and substomatal [CO2] had no influence on the symmetry of A/T curves, but significantly affected their breadth. Thermodynamic and kinetic (physiological) factors responsible for (i) the curvature in Arrhenius plots and (ii) the correlation between parameters of a modified Arrhenius equation are discussed. We argue that the shape of A/T curves cannot satisfactorily be explained via classical concepts assuming temperature-dependent shifts between rate-limiting processes. Instead the present results indicate that any given A/T curve appears to reflect a distinct flux mode, set by the balance between linear and cyclic electron transport, and emerging from the anabolic demand for ATP relative to that for NADPH.
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Affiliation(s)
- Jörg Kruse
- Chair of Tree Physiology, Institute of Forest Sciences, Georges-Köhler-Allee 53/54, 79110, Freiburg, Germany.
| | - Saleh Alfarraj
- College of Sciences, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Heinz Rennenberg
- Chair of Tree Physiology, Institute of Forest Sciences, Georges-Köhler-Allee 53/54, 79110, Freiburg, Germany
- College of Sciences, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mark Adams
- Faculty of Agriculture and Environment, The University of Sydney, Sydney, NSW, 2006, Australia
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The biochemical basis for thermoregulation in heat-producing flowers. Sci Rep 2016; 6:24830. [PMID: 27095582 PMCID: PMC4837406 DOI: 10.1038/srep24830] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 04/05/2016] [Indexed: 11/08/2022] Open
Abstract
Thermoregulation (homeothermy) in animals involves a complex mechanism involving thermal receptors throughout the body and integration in the hypothalamus that controls shivering and non-shivering thermogenesis. The flowers of some ancient families of seed plants show a similar degree of physiological thermoregulation, but by a different mechanism. Here, we show that respiratory control in homeothermic spadices of skunk cabbage (Symplocarpus renifolius) is achieved by rate-determining biochemical reactions in which the overall thermodynamic activation energy exhibits a negative value. Moreover, NADPH production, catalyzed by mitochondrial isocitrate dehydrogenase in a chemically endothermic reaction, plays a role in the pre-equilibrium reaction. We propose that a law of chemical equilibrium known as Le Châtelier's principle governs the homeothermic control in skunk cabbage.
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Noguchi K, Yamori W, Hikosaka K, Terashima I. Homeostasis of the temperature sensitivity of respiration over a range of growth temperatures indicated by a modified Arrhenius model. THE NEW PHYTOLOGIST 2015; 207:34-42. [PMID: 25704334 DOI: 10.1111/nph.13339] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 01/23/2015] [Indexed: 05/24/2023]
Abstract
The temperature dependence of plant respiratory rate (R) changes in response to growth temperature. Here, we used a modified Arrhenius model incorporating the temperature dependence of activation energy (Eo ), and compared the temperature dependence of R between cold-sensitive and cold-tolerant species. We analyzed the temperature dependences of leaf CO2 efflux rate of plants cultivated at low (LT) or high temperature (HT). In plants grown at HT (HT plants), Eo at low measurement temperature varied among species, but Eo at growth temperature in HT plants did not vary and was comparable to that in plants grown at LT (LT plants), suggesting that the limiting process was similar at the respective growth temperatures. In LT plants, the integrated value of loge R, a measure of respiratory capacity, in cold-sensitive species was lower than that in cold-tolerant species. When plants were transferred from HT to LT, the respiratory capacity changed promptly after the transfer compared with the other parameters. These results suggest that a similar process limits R at different growth temperatures, and that the lower capacity of the respiratory system in cold-sensitive species may explain their low growth rate at LT.
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Affiliation(s)
- Ko Noguchi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Wataru Yamori
- Center for Environment, Health and Field Sciences, Chiba University, Kashiwa, Chiba, Japan
- PREST, JST, 332-0012, Japan
| | - Kouki Hikosaka
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi, Japan
- CREST, JST, 332-0012, Japan
| | - Ichiro Terashima
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- CREST, JST, 332-0012, Japan
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