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Hu T, Wu Z, Deng M, Liu H, Xiao J, Wei Q, Yu F. Understanding Water Utilization Mechanisms in Degrading Bamboo Shoots: A Cytological and Physiological Study. PLANTS (BASEL, SWITZERLAND) 2024; 13:1969. [PMID: 39065495 PMCID: PMC11281227 DOI: 10.3390/plants13141969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/10/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024]
Abstract
Degradation of shoots, characterized by stunted growth and signs of water deficit, is common in bamboo stands. However, the specific mechanisms underlying water utilization in degrading shoots remain unclear. This study sought to address this gap by harvesting bamboo shoots and culms of Phyllostachys edulis 'Pachyloen', employing cytological and physiological techniques to compare water utilization mechanisms between healthy and degrading shoots, and investigating the water supply to bamboo shoots by the parent bamboo. The water pressure in the degrading shoots was markedly lower compared to that of the healthy shoots, and it declined as the degradation progressed, resulting in reduced water content and the cessation of guttation in the degrading shoots. In conditions of water deficit, the percentage of free water in bamboo shoots decreased while the percentages of bound and semi-bound water increased, with the proportion of semi-bound water reaching as high as 88.13% in the late stages of degradation. The water potential of parent bamboo culms of different ages varied at different times of the day and during different growth stages of bamboo shoots, showing a strong association with the development of bamboo shoots. Conversely, the correlation between changes in the water potential of bamboo shoots and their degradation patterns was found to be comparatively minimal. The weakening of the connection between the bamboo shoots and the parent bamboo culms may play a significant role in the degradation of the bamboo shoots. This is evidenced by a decrease in the fluorescence intensity of the nucleus in bamboo shoots and the degradation of genetic material. This study lays the foundation for future research into the mechanisms of bamboo shoot degradation.
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Affiliation(s)
- Tianyi Hu
- Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species (2024SSY04093), Jiangxi Agriculture University, Nanchang 330045, China; (T.H.)
| | - Zhengchun Wu
- Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species (2024SSY04093), Jiangxi Agriculture University, Nanchang 330045, China; (T.H.)
| | - Meng Deng
- Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species (2024SSY04093), Jiangxi Agriculture University, Nanchang 330045, China; (T.H.)
| | - Haiwen Liu
- Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species (2024SSY04093), Jiangxi Agriculture University, Nanchang 330045, China; (T.H.)
| | - Jiao Xiao
- Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species (2024SSY04093), Jiangxi Agriculture University, Nanchang 330045, China; (T.H.)
| | - Qiang Wei
- Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species (2024SSY04093), Jiangxi Agriculture University, Nanchang 330045, China; (T.H.)
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Fen Yu
- Jiangxi Provincial Key Laboratory of Improved Variety Breeding and Efficient Utilization of Native Tree Species (2024SSY04093), Jiangxi Agriculture University, Nanchang 330045, China; (T.H.)
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Xu Y, Du H, Mao F, Li X, Zhou G, Huang Z, Guo K, Zhang M, Luo X, Chen C, Zhao Y. Effects of chlorophyll fluorescence on environment and gross primary productivity of moso bamboo during the leaf-expansion stage. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 360:121185. [PMID: 38788407 DOI: 10.1016/j.jenvman.2024.121185] [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: 04/07/2024] [Revised: 05/06/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
Chlorophyll fluorescence is the long-wave light released by the residual energy absorbed by vegetation after photosynthesis and dissipation, which can directly and non-destructively reflect the photosynthetic state of plants from the perspective of the mechanism of photosynthetic process. Moso bamboo has a substantial carbon sequestration ability, and leaf-expansion stage is an important phenological period for carbon sequestration. Gross primary production (GPP) is a key parameter reflecting vegetation carbon sequestration process. However, the ability of chlorophyll fluorescence in moso bamboo to explain GPP changes is unclear. The research area of this study is located in the bamboo forest near the flux station of Anji County, Zhejiang Province, where an observation tower is built to monitor the carbon flux and meteorological change of bamboo forest. The chlorophyll fluorescence physiological parameters (Fp) and fluorescence yield (Fy) indices were measured and calculated for the leaves of newborn moso bamboo (I Du bamboo) and the old leaves of 4- to 5-year-old moso bamboo (Ⅲ Du bamboo) during the leaf-expansion stage. The chlorophyll fluorescence in response to the environment and its effect on carbon flux were analyzed. The results showed that: Fv/Fm, Y(II) and α of Ⅰ Du bamboo gradually increased, while Ⅲ Du bamboo gradually decreased, and FYint and FY687/FY738 of Ⅰ Du bamboo were higher than those of Ⅲ Du bamboo; moso bamboo was sensitive to changes in air temperature(Ta), relative humidity(RH), water vapor pressure(E), soil temperature(ST) and soil water content (SWC), the Fy indices of the upper, middle and lower layers were significantly correlated with Ta, E and ST; single or multiple vegetation indices were able to estimate the fluorescence yield indices well (all with R2 greater than 0.77); chlorophyll fluorescence (Fp and Fy indices) of Ⅰ Du bamboo and Ⅲ Du bamboo could explain 74.4% and 72.7% of the GPP variation, respectively; chlorophyll fluorescence and normalized differential vegetation index of the canopy (NDVIc) could estimate GPP well using random forest (Ⅰ Du bamboo: r = 0.929, RMSE = 0.069 g C·m-2; Ⅲ Du bamboo: r = 0.899, RMSE = 0.134 g C·m-2). The results of this study show that chlorophyll fluorescence can provide a basis for judging the response of moso bamboo to environmental changes and can well explain GPP. This study has important scientific significance for evaluating the potential mechanisms of growth, stress feedback and photosynthetic carbon sequestration of bamboo.
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Affiliation(s)
- Yanxin Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Huaqiang Du
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China.
| | - Fangjie Mao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Xuejian Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Guomo Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Zihao Huang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Keruo Guo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Meng Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Xin Luo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Chao Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
| | - Yinyin Zhao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China; Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A & F University, Hangzhou, 311300, China; School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou, 311300, China
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Zhang X, Tong C, Fang D, Mei T, Li Y. Different hydraulic and photosynthetic responses to summer drought between newly sprouted and established Moso bamboo culms. FRONTIERS IN PLANT SCIENCE 2023; 14:1252862. [PMID: 37900750 PMCID: PMC10602750 DOI: 10.3389/fpls.2023.1252862] [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: 07/04/2023] [Accepted: 09/22/2023] [Indexed: 10/31/2023]
Abstract
The subtropical regions in China are prone to recurrent summer droughts induced by the Western Pacific Subtropical High-Pressure, which has induced the death of tens of millions of culms of Moso bamboo (Phyllostachys edulis (Carriere) J. Houzeau), a widely distributed giant bamboo with high economic and ecological values. In the future, the intensity and frequency of the summer drought are projected to increase in these areas due to global climate change, which may lead to significant age-specific mortality of Moso bamboo. So far, it is still unclear about the age-specific response mechanisms of hydraulic traits and carbon balance of Moso bamboo when it is suffering to an ongoing summer drought. This study aimed to investigate the hydraulic and photosynthetic responses of newly sprouted (1 year old) and established (2-5 years old) culms of Moso bamboo to summer drought, which was manipulated by throughfall reduction in Lin'an of Zhejiang. The results showed that both newly sprouted and established culms had a gradually weakening hydraulic conductivity and photosynthesis during the whole drought process. In the early stage of the manipulated drought, the established culms had more loss of hydraulic conductivity than the newly sprouted culms. However, the newly sprouted culms had significant more loss of hydraulic conductivity and lower photosynthetic rates and stomatal conductance in the middle and late stages of the manipulated drought. The results suggest that the newly sprouted culms were more susceptible to summer drought than established culms due to the combined effects of hydraulic damage and photosynthetic restriction, explaining why the newly sprouted culms have higher mortality than elder culms when subjected to extreme drought. These findings provided insights into the mechanisms of Moso bamboo's age-specific drought-induced mortality, which will help for the anti-drought management of bamboo.
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Affiliation(s)
- Xin Zhang
- State Key Laboratory of Subtropical Silvilculture, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Chazi Tong
- State Key Laboratory of Subtropical Silvilculture, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Dongming Fang
- State Key Laboratory of Subtropical Silvilculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Horticulture, Jiyang College of Zhejiang Agriculture and Forestry University, Zhuji, Zhejiang, China
| | - Tingting Mei
- State Key Laboratory of Subtropical Silvilculture, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Yan Li
- State Key Laboratory of Subtropical Silvilculture, Zhejiang A&F University, Lin’an, Zhejiang, China
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Fan L, Hu J, Guo Z, Chen S, He Q. Shoot Nutrition and Flavor Variation in Two Phyllostachys Species: Does the Quality of Edible Bamboo Shoot Diaphragm and Flesh Differ? Foods 2023; 12:foods12061180. [PMID: 36981107 PMCID: PMC10048675 DOI: 10.3390/foods12061180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/24/2023] [Accepted: 03/07/2023] [Indexed: 03/18/2023] Open
Abstract
For their quality evaluation, it is essential to determine both bamboo shoot nutrition and palatability, which will have a decisive effect on their economic value and market potential. However, differences in shoot nutrition and flavor variation among bamboo species, positions, and components have not been scientifically validated. This study assessed nutritional and flavor differences in two components (i.e., shoot flesh (BSF) and diaphragm (BSD)) of two Phyllostachys species (i.e., Phyllostachys edulis and Phyllostachys violascens) and analyzed any positional variation. Results showed that BSF protein, starch, fat, and vitamin C contents were comparatively higher. Nutrient compounds in the upper shoot segment of Ph. edulis were higher and contained less cellulose and lignin. However, both species’ BSD total acid, oxalic acid, and tannin contents were comparable. BSD soluble sugar and sugar:acid ratio were higher than upper BSD total amino acid, four key amino acids (i.e., essential amino acid, bitter amino acid, umami amino acid, and sweet amino acid flavor compounds), and associated ratios were all higher than BSF while also being rich in amino acids. The content and proportion of BSF essential and bitter amino acid flavor compounds in Ph. edulis were high relative to Ph. violascens. Conversely, the content and proportion of BSD umami and sweet amino acid flavor compounds were comparable to that of Ph. edulis. Our results showed that bamboo shoot quality was affected by flavor compound differences and that interspecific and shoot components interact. This study offers a new perspective to determine the formative mechanisms involved in bamboo shoot quality while providing a basis for their different usages.
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Affiliation(s)
- Lili Fan
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Junjing Hu
- Hangzhou Academy of Forestry, Hangzhou 310005, China
| | - Ziwu Guo
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Correspondence:
| | - Shuanglin Chen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Qijiang He
- Hangzhou Academy of Forestry, Hangzhou 310005, China
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Song Y, Peng C, Wu Q, Tao S, Mei T, Sun Z, Zuo Z, Pan C, Zhou Y, Zhou G. Age effects of Moso bamboo on leaf isoprene emission characteristics. FRONTIERS IN PLANT SCIENCE 2023; 14:1132717. [PMID: 36959949 PMCID: PMC10028176 DOI: 10.3389/fpls.2023.1132717] [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: 12/27/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Isoprene is a highly reactive volatile organic compound that significantly affects atmospheric oxidant capacity, regional air quality, and climate change. Moso bamboo (Phyllostachys edulis), a species widely distributed in tropical and subtropical regions, particularly in China, is a strong isoprene emitter with great potential for carbon sequestration. Carbon sequestration is negatively correlated with culm age; however, the effect of this correlation on isoprene emissions remains unknown. In this study, we investigated the photosynthetic and isoprene emission characteristics of Moso bamboo at different culm ages. The results showed that the age effect on isoprene emission was different from that on photosynthesis; the net photosynthesis rate (Pn) was the highest in young, followed by mature, and then old bamboo, whereas the isoprene emission rate (Iso) was the highest in young, followed by old, and then mature bamboo. Moreover, the percentage of carbon loss as isoprene emission (C-loss) during photosynthesis of old bamboo was 35% higher than that of mature bamboo under standard conditions (leaf temperature: 30°C; light intensity: 1000 µmol m-2 s-1). Therefore, we strongly recommend considering the culm age when establishing an isoprene emission model of Moso bamboo. Additionally, because the Iso and C-loss of old bamboo were higher than those of mature bamboo, we suggest that attention should be paid to the management of bamboo age structure and timely felling of aged bamboo to reduce environmental risk.
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Affiliation(s)
- Yandong Song
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Lishui Academy of Agricultural and Forestry Sciences, Lishui, China
| | - Chunju Peng
- Wenzhou Vocational College of Science and Technology, Wenzhou, China
| | - Qinjiao Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
| | - Shijie Tao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
| | - Tingting Mei
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
| | - Zhihong Sun
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- College of Horticulture Science, Zhejiang A&F University, Hangzhou, China
| | - Zhaojiang Zuo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, China
| | - Chunyu Pan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Faculty of Forestry, University of British Columbia, Vancouver, BC, Canada
| | - Yufeng Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
| | - Guomo Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
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Ye C, Zeng Q, Hu K, Fang D, Hölscher D, Du H, Shi Y, Zhou Y, Berninger F, Mei T, Zhou G. Partitioning of respired CO 2 in newly sprouted Moso bamboo culms. FRONTIERS IN PLANT SCIENCE 2023; 14:1154232. [PMID: 37152132 PMCID: PMC10158728 DOI: 10.3389/fpls.2023.1154232] [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: 01/30/2023] [Accepted: 03/30/2023] [Indexed: 05/09/2023]
Abstract
Stem respiration (R s) plays a vital role in ecosystem carbon cycling. However, the measured efflux on the stem surface (E s) is not always in situ R s but only part of it. A previously proposed mass balance framework (MBF) attempted to explore the multiple partitioning pathways of R s, including sap-flow-transported and internal storage of R s, in addition to E s. This study proposed stem photosynthesis as an additional partitioning pathway to the MBF. Correspondingly, a double-chamber apparatus was designed and applied on newly sprouted Moso bamboo (Phyllostachys edulis) in leafless and leaved stages. R s of newly sprouted bamboo were twice as high in the leafless stage (7.41 ± 2.66 μmol m-2 s-1) than in the leaved stage (3.47 ± 2.43 μmol m-2 s-1). E s accounted for ~80% of R s, while sap flow may take away ~2% of R s in both leafless and leaved stages. Culm photosynthesis accounted for ~9% and 13% of R s, respectively. Carbon sequestration from culm photosynthesis accounted for approximately 2% of the aboveground bamboo biomass in the leafless stage. High culm photosynthesis but low sap flow during the leafless stage and vice versa during the leaved stage make bamboo an outstanding choice for exploring the MBF.
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Affiliation(s)
- Chongyu Ye
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Qiangfa Zeng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Keda Hu
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Dongming Fang
- Jiyang College, Zhejiang A&F University, Zhuji, Zhejiang, China
| | - Dirk Hölscher
- Tropical Silviculture and Forest Ecology, University of Göttingen, Göttingen, Germany
| | - Huaqiang Du
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Yongjun Shi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Yufeng Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
| | - Frank Berninger
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
| | - Tingting Mei
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
- *Correspondence: Tingting Mei, ; Guomo Zhou,
| | - Guomo Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Zhejiang, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Lin’an, Zhejiang, China
- College of Environmental and Resource Sciences, Zhejiang A&F University, Lin’an, Zhejiang, China
- *Correspondence: Tingting Mei, ; Guomo Zhou,
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Shoot Phenology in Bambusoideae: A Review. INTERNATIONAL JOURNAL OF PLANT BIOLOGY 2022. [DOI: 10.3390/ijpb13040046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The study of plant phenology is important nowadays since global climate-changing phenomena are impacting the growing patterns and growing periods of plants. Bamboo is of great importance to the agriculture and forestry of temperate, subtropical to tropical regions, especially of Asia. Although some temperate genera can thrive under different climatic conditions, from the Korean Peninsula to South China, it is not known how bamboo will be affected by climate change, so the collection of data related to bamboo phenology could be of interest to research related to climate change. In this review, we describe available data on the phenology of 8 temperate genera, including 79 species, varieties and forms and 4 subtropical–tropical bamboo genera, including 19 species. Primarily, culm shoot physiology is discussed with some reference to leaf phenology data, where available, as well as their interaction. Since the data available in Western literature is often limited to the definition of season rather than exact dates and periods of given months, there is still a great need to explore more about the exact phenology of individual bamboo species to be able to determine the impact of periodic changes in weather patterns or climate change on bamboo phenology in the future.
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Guo X, Shi P, Niinemets Ü, Hölscher D, Wang R, Liu M, Li Y, Dong L, Niklas KJ. "Diminishing returns" for leaves of five age-groups of Phyllostachys edulis culms. AMERICAN JOURNAL OF BOTANY 2021; 108:1662-1672. [PMID: 34580863 DOI: 10.1002/ajb2.1738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/17/2021] [Accepted: 05/17/2021] [Indexed: 05/12/2023]
Abstract
PREMISE Leaf mass (M) and lamina surface area (A) are important functional traits reported to obey a scaling relationship called "diminishing returns" (i.e., M ∝ Aα>1 ). Previous studies have focused primarily on eudicots and ignored whether the age of leaves affects the numerical value of the scaling exponent (i.e., α). METHODS The effect of age was examined using 1623 Phyllostachys edulis leaves from culms differing in age collected in Nanjing, China. The scaling relationships among leaf A, fresh mass (FM), and dry mass (DM) were evaluated using reduced major axis protocols. The bootstrap percentile method was used to test the significance of differences in α-values. RESULTS Overall, the numerical values of α exceeded 1.0. The scaling relationship between FM and A was statistically more robust than that between DM and A. The scaling exponents of FM vs. A exhibited a "high-low-high-low-high" numerical trend from the oldest to the youngest age-group. FM increased linearly as culm age decreased; the leaf DM per unit area (LMA) exhibited a parabolic trend across the age-groups. CONCLUSIONS "Diminishing returns" is confirmed for all but one age-group of an important monocot species. The relationship between FM and A was statistically more robust than that between DM and A for each age-group. The FM per unit A decreased with increasing age-groups, whereas the middle age-groups had a greater LMA than the oldest and youngest age-groups. These data are the first to show that the age of shoots affects the scaling relationship between leaf mass and area.
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Affiliation(s)
- Xuchen Guo
- Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd., Nanjing, 210037, China
| | - Peijian Shi
- Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd., Nanjing, 210037, China
- Tropical Silviculture and Forest Ecology, University of Göttingen, Büsgenweg 1, 37077, Göttingen, Germany
| | - Ülo Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, 51006, Estonia
- Estonian Academy of Sciences, Tallinn, 10130, Estonia
| | - Dirk Hölscher
- Tropical Silviculture and Forest Ecology, University of Göttingen, Büsgenweg 1, 37077, Göttingen, Germany
| | - Rong Wang
- Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd., Nanjing, 210037, China
| | - Mengdi Liu
- Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd., Nanjing, 210037, China
| | - Yirong Li
- Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd., Nanjing, 210037, China
| | - Lina Dong
- Administrative Bureau of Dr. Sun Yat-sen's Mausoleum, Nanjing, 210014, China
| | - Karl J Niklas
- School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
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