Article
Plant Sciences
Dinorah M. S. Marcal, Rodrigo T. Avila, Luisa F. Quiroga-Rojas, Raylla P. B. de Souza, Carlos C. Gomes Junior, Lucas R. Ponte, Marcela L. Barbosa, Leonardo A. Oliveira, Samuel C. Martins, Jose D. C. Ramalho, Fabio M. DaMatta
Summary: The study found that high light and eC(a) can independently improve the growth and photosynthetic performance of coffee plants, with some allometric changes observed under the combination of eC(a) and high light. Stimulation of photosynthetic rates by eC(a) did not directly affect stomatal and mesophyll conductances, and no signs of photosynthetic downregulation were found regardless of treatments.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Kai Yang, Jingrui Yang, Chunhua Lv, Peipei Cao, Xi Deng, Yijie Wang, Wenjuan Sun, Lingfei Yu, Zhenghua Hu, Yao Huang
Summary: The study investigated the photosynthetic acclimation of a japonica rice cultivar under elevated CO2 levels, finding that the decrease in photosynthetic rate was mainly limited by mesophyll conductance (g(m)). The results underscore the significant role of g(m) in photosynthetic acclimation under elevated CO2 conditions in rice.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Bin Du, M. K. Shukla, Risheng Ding, Xiaolin Yang, Taisheng Du
Summary: This study demonstrates that injecting elevated CO2 concentration in the greenhouse can improve photosynthetic activity and yield of cherry tomatoes. Inoculation with photosynthetic bacteria can further enhance photosynthetic acclimation and alleviate yield penalties caused by reduced irrigation. This suggests that application of photosynthetic bacteria can potentially improve cherry tomato production.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Kai Yang, Yao Huang, Jingrui Yang, Lingfei Yu, Zhenghua Hu, Wenjuan Sun, Qing Zhang
Summary: The study found that prolonged elevated CO2 levels affect photosynthesis and lead to adaptive changes. It was observed that increased CO2 concentration reduces the allocation of nitrogen to photosynthesis components, specifically biochemical reactions and light-harvesting complexes. The acclimation of photosynthesis is mostly driven by the limitation in RuBP regeneration.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Agronomy
Manman Yuan, Chuang Cai, Xiaozhong Wang, Gang Li, Gang Wu, Jiabao Wang, Wei Geng, Gang Liu, Jianguo Zhu, Yixiang Sun
Summary: Increasing leaf nitrogen content may not offset the reduction in photosynthetic acclimation under high CO2 concentrations and elevated temperatures in rice. The effects of elevated CO2 and air temperature on chlorophyll and carotenoid content were similar to the changes in total leaf nitrogen content.
FIELD CROPS RESEARCH
(2021)
Article
Agronomy
Wenguang Sun, David Fleisher, Dennis Timlin, Sanai Li, Zhuangji Wang, Vangimalla Reddy
Summary: GLYCIM, a soybean crop simulator, was enhanced by replacing the original photosynthesis equation with a leaf-level energy balance model to better simulate responses to climate change. The modified version showed improved agreement with observed canopy photosynthetic and transpiration rates, while accurately simulating carbon partitioning to different plant parts. Further evaluation with field data will be useful for studying adaptation responses under projected warmer, CO2-enriched climate conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Plant Sciences
Yahan Su, Huan Yang, Yushan Wu, Wanzhuo Gong, Hina Gul, Yanhong Yan, Wenyu Yang
Summary: The ability of soybean to acclimate to changing light environments in relay intercropping is crucial for its growth and yield formation. This study compared the photosynthetic acclimation of two soybean varieties with contrasting shade tolerance and found that the shade-tolerant variety displayed better adaptation to variations in light conditions and had higher growth and yield potential.
Article
Plant Sciences
Jinjie Fan, Moshe Halpern, Yangliu Yu, Qiang Zuo, Jianchu Shi, Yuchuan Fan, Xun Wu, Uri Yermiyahu, Jiandong Sheng, Pingan Jiang, Alon Ben-Gal
Summary: This study investigates the mechanisms of e[CO2]-induced N deficiency (ECIND) on wheat. The results show that elevated CO2 concentration promotes plant growth but leads to a decrease in tissue N concentration. Active uptake of N can partially compensate for the passive uptake, but it is limited by the energy required. The dominant mechanism explaining ECIND is N dilution in plant tissues, which is influenced by changes in resource allocation.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Maaya Igarashi, Yan Yi, Katsuya Yano
Summary: The study found that the increase in plant biomass under elevated CO2 concentration is lower than expected, mainly due to induced nitrogen deficiency. While some hypotheses were not confirmed, the results showed that higher CO2 concentration significantly enhances water-use efficiency in plants, and accelerated growth rate increases the demand for nitrogen.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Martijn Slot, Sami W. Rifai, Klaus Winter
Summary: In response to climate change, tropical tree species exhibit a certain degree of photosynthetic plasticity, with even fully developed leaves of saplings being able to partially acclimate to extreme conditions.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Forestry
Songmei Shi, Xiao Xu, Xingshui Dong, Chenyang Xu, Yuling Qiu, Xinhua He
Summary: This study investigated the effects of anticipated future elevated CO2 on growth, physiology, and nutrient uptake in two widely cultivated mulberry varieties in southwest China. The results showed that elevated CO2 significantly increased plant growth but decreased chlorophyll concentrations and photosynthetic rates, while also leading to lower leaf N and P concentrations. Nutrient dilution and changes in plant demand were identified as key factors driving the reduction of leaf N and P under elevated CO2 conditions.
Article
Forestry
Jose N. Semedo, Ana P. Rodrigues, Fernando C. Lidon, Isabel P. Pais, Isabel Marques, Duarte Gouveia, Jean Armengaud, Maria J. Silva, Sonia Martins, Magda C. Semedo, Danielly Dubberstein, Fabio L. Partelli, Fernando H. Reboredo, Paula Scotti-Campos, Ana Ribeiro-Barros, Fabio M. DaMatta, Jose C. Ramalho
Summary: The study reveals the impacts of moderate or severe water deficit on the photosynthetic apparatus of Coffea canephora and Coffea arabica, showing that different genotypes have varying levels of tolerance to drought. Elevated CO2 levels can improve photosynthetic performance, particularly in terms of photochemical and biochemical components, while not significantly affecting photoprotective mechanisms and protein abundance.
Article
Plant Sciences
Konrad Kraemer, Gabi Kepp, Judith Brock, Simon Stutz, Arnd G. Heyer
Summary: Plants exposed to elevated CO2 initially show increased photosynthetic activity, but this declines over time. The decline is associated with an increase in the carbon-to-nitrogen ratio of the biomass. The study demonstrates that reduced photorespiration at high CO2 leads to decreased assimilation of nitrate, which shifts the C/N balance.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Biodiversity Conservation
Lulu Dai, Yansen Xu, Harry Harmens, Honglang Duan, Zhaozhong Feng, Felicity Hayes, Katrina Sharps, Alan Radbourne, Lasse Tarvainen
Summary: The study found that the optimum temperature of A(sat) increased significantly with warming, but the thermal acclimation capacity was reduced by O-3 exposure, leading to decreased T-optA, T-optV, and T-optJ under EO3. Changes in leaf nitrogen content and N use efficiency were closely correlated with the responses of A(sat), V-cmax, and J(max) to warming and EO3.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biodiversity Conservation
Erqian Cui, Jianyang Xia, Yiqi Luo
Summary: Increasing CO2 concentration in the atmosphere leads to a reduction in leaf photosynthetic capacity in plants, known as plant photosynthetic acclimation to elevated CO2 (PAC). A study of 73 plant species revealed that although leaf photosynthetic capacity increased significantly from gymnosperms to angiosperms, the mechanisms responsible for PAC did not differ across plant phylogeny. Leaf nitrogen concentration, photosynthetic nitrogen-use efficiency, and leaf mass per area were found to be important factors in PAC, but showed no apparent differences across major evolutionary clades.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Yanru Feng, Muhammad Shahedul Alam, Feng Yan, Michael Frei
Summary: Tropospheric ozone has significant effects on the remobilization and allocation efficiency of aboveground biomass and nutrients in cereal crops. Long-term ozone exposure increases straw C:N ratio and affects grain C:N ratio. Grain N concentrations increase significantly under ozone stress, but N yield declines due to grain yield losses. Various indicators of N use efficiency are reduced, indicating reduced N absorption from soil and allocation from vegetative to reproductive organs. Straw C:N ratio is not suitable for predicting wheat productivity. Nitrogen harvest index (NHI) is not affected by ozone stress, but the relationship between harvest index (HI) and NHI is changed by elevated ozone concentration.
Article
Biochemistry & Molecular Biology
Cong Guan, Wei Li, Guoliang Wang, Ruimei Yang, Jinglei Zhang, Jinhong Zhang, Bo Wu, Run Gao, Chunlin Jia
Summary: This study characterized the expression profiles of mRNAs and ncRNAs in switchgrass under drought stress. The up-regulated mRNAs were enriched in starch and sucrose metabolism pathway, while the differentially expressed lncRNAs potentially regulated protein-coding genes. The study also constructed regulatory networks and validated the functionality of the target gene PvSS4 in enhancing drought tolerance.
Article
Biochemistry & Molecular Biology
Juan Nicolas-Espinosa, Lucia Yepes-Molina, Fuensanta Martinez-Bernal, Miriam Fernandez-Pozurama, Micaela Carvajal
Summary: This study aimed to investigate the physiological response of broccoli leaves to abiotic stresses such as salinity and boron toxicity/deficiency. The results showed that the combined stress of salinity and boron deficiency resulted in a significant reduction in plant biomass, and the adaptation mechanisms were associated with water and boron concentration in the leaves. The expression patterns of PIP aquaporins varied among the different stress treatments, and their presence in the plasma membrane and interaction with the lipid environment played potential regulatory roles in facilitating salinity-boron stress adaptation mechanisms.
Review
Biochemistry & Molecular Biology
Wen-Feng Huang, Juan Li, Jian-An Huang, Zhong-Hua Liu, Li-Gui Xiong
Summary: This review examines the seasonal trends of phyllosphere microorganisms in woody and herbaceous plants and explores the factors influencing these trends. While herbaceous and woody plants share some similarities and differences in their phyllosphere microbiomes, further experimental validation is needed.
Article
Biochemistry & Molecular Biology
Changguang Liao, Hui Shen, Zihan Gao, Yunshu Wang, Zhiguo Zhu, Qiaoli Xie, Ting Wu, Guoping Chen, Zongli Hu
Summary: The novel CRF, SlCRF6, plays a crucial role in regulating tomato plant morphology, leaf development, and the accumulation of photosynthetic products.
Article
Biochemistry & Molecular Biology
Alok Madhu, Alok Sharma, Amandeep Kaur, Kashmir Singh, Santosh Kumar Upadhyay
Summary: In this study, 15 TaMDHAR genes were identified in bread wheat and their crucial roles in antioxidants, growth and development, and stress responses were revealed.
Article
Biochemistry & Molecular Biology
Kai Zheng, Yongsheng Cai, Yanying Qu, Lu Teng, Chaoyue Wang, Jie Gao, Quanjia Chen
Summary: In this study, the whole genome identification and bioinformatics analysis of the HCT gene family were performed in G. barbadense. The results showed that the GbHCT114 gene regulates plant trichome development, which is closely related to cotton fiber quality. Gene silencing and overexpression experiments confirmed the important role of GbHCT114 gene in cotton fiber morphology, lignin content, and secondary xylem duct cell wall development. Transcriptomic analysis identified differentially expressed genes associated with lignin synthesis and fiber development.
Review
Biochemistry & Molecular Biology
Tanashvi Seth, Sejal Asija, Shahid Umar, Ravi Gupta
Summary: Plants activate a sophisticated signaling cascade in response to pests and pathogens, with lipids playing a crucial role in mediating these defense responses. Different types of lipids are involved in cell signaling during plant-pathogen interaction and each lipid has specific relevance and contributes to specific signaling cascades. Lipid biosynthetic enzymes, including phospholipases, are involved in the production of defense signaling molecules. Lipids participate in stress signaling by mediating signal transduction, acting as precursors for bioactive molecules, regulating ROS formation, and interacting with phytohormones.
Article
Biochemistry & Molecular Biology
Yangyang Chen, Xiao Wu, Xiaohua Wang, Qionghou Li, Hao Yin, Shaoling Zhang
Summary: 'Nanguo' pears emit a rich aroma when fully ripe, and the important volatile components are the six-carbon compounds derived from the lipoxygenase pathway. This study identified a highly expressed bZIP transcription factor that is induced during the mature stage of 'Nanguo' pears, and demonstrated its regulatory role in fatty acid-derived volatile biosynthesis.
Article
Biochemistry & Molecular Biology
Zhao Geng, Haikuan Dou, Jianguang Liu, Guiyuan Zhao, Linlin Liu, Ning Zhao, Hanshuang Zhang, Yongqiang Wang, Zetong An
Summary: The overexpression of GhFB15 gene decreases the salt tolerance of Arabidopsis plants, while silencing the gene improves the salt tolerance of cotton plants. Furthermore, GhFB15 regulates the accumulation of flavonoids and the levels of ROS.
Article
Biochemistry & Molecular Biology
Linjun Cai, Ancheng Ma, Jiao Lei, Chongsheng He
Summary: METTL4 is identified as a plant DNA 6mA methyltransferase in Arabidopsis thaliana and plays a crucial role in regulating heat stress response.
Article
Biochemistry & Molecular Biology
Zailong Tian, Kun Li, Yaru Sun, Baojun Chen, Zhaoe Pan, Zhenzhen Wang, Baoyin Pang, Shoupu He, Yuchen Miao, Xiongming Du
Summary: Plants have evolved a mechanism called 'stress memory' to survive in various environmental stresses. This study reveals the physiological, biochemical, and molecular mechanisms underlying drought stress memory formation in cotton, highlighting the role of histone modification H3K4me3 in regulating transcriptional memory. It also investigates the intergenerational inheritance of drought stress memory in cotton, providing theoretical guidance for cotton breeding.