Article
Biochemistry & Molecular Biology
Jose Angel Morales-Sanchez, Kristiina Mark, Eero Talts, Bakhtier Rasulov, Ulo Niinemets
Summary: Desiccation-rehydration studies in cryptogams provide valuable insights into the relationship between key physiological traits and species stress tolerance and environmental adaptability. Our developed within-chamber rehydration method enables rapid and precise measurement of sample rehydration without the need for manual intervention. The real-time monitoring of multiple parameters offers a novel perspective in understanding cryptogam stress responses. Evaluation: 8/10.
Article
Forestry
C-W Wang, S-L Wong, T-S Liao, J-H Weng, M-N Chen, M-Y Huang, C- Chen
Summary: The study investigates the responses of Taiwanese Kandelia obovata and Rhizophora stylosa mangroves to salinity and submergence, with Rhizophora stylosa being more salt tolerant but less submergence tolerant compared to Kandelia obovata. Both species' photosynthetic rates are constrained by stomatal conductance, with parameters related to photoinhibition being higher.
Article
Forestry
Fei Liu, Maojiao Zhang, Jiafeng Hu, Min Pan, Luyang Shen, Jianren Ye, Jiajin Tan
Summary: The effect of the pinewood nematode on chlorophyll fluorescence parameters of Pinus thunbergii needles was investigated for the early diagnosis of pine wilt disease.
Article
Green & Sustainable Science & Technology
Mingyue Wan, Zhiqin Wang, Guangming Mai, Zengling Ma, Xiaomin Xia, Yehui Tan, Gang Li
Summary: This study compared the photosynthesis of two dominant macroalgae (Ulva fasciata and Sargassum thunbergii) under different light spectra. The results showed that the changes in light spectrum significantly affected the photosynthetic ability and primary production of these algae, and this influence varied among species.
Article
Plant Sciences
Zhi-Fang Zhao, Zhi-Hai Zhong, Xin Wang, Jia-Lin Li, Shan-Ying Tong, Jin-Hao Zhang, Zheng-Yi Liu, Song Qin
Summary: This study investigated the impact of drying-rewetting on the photosynthetic carbon fixation capacity and DOC release mechanism of S. thunbergii. The results showed that desiccation decreased carbon fixation capacity but increased the protection of PSII, promoting recovery during rehydration. It was found that DOC release after rehydration was passive, linked to osmotic pressure increase, cell membrane damage, and carbon accumulation from desiccation. This measurement system provides a practical reference for studying carbon sink in macroalgae.
Article
Agronomy
Paulina A. Rajewicz, Chao Zhang, Jon Atherton, Shari Van Wittenberghe, Anu Riikonen, Troy Magney, Beatriz Fernandez-Marin, Jose Ignacio Garcia Plazaola, Albert Porcar-Castell
Summary: Chlorophyll fluorescence can be used as a proxy for photosynthesis in boreal forests. This study measured the spectral chlorophyll fluorescence in leaves of three dominant evergreen species in the boreal ecosystem and analyzed the correlations with other traits to understand the spatial and temporal variation in chlorophyll fluorescence. The findings suggest that the diversity of species and light environments within an ecosystem generate baseline variation in leaf spectral chlorophyll fluorescence and contrasting seasonal photosynthetic acclimation patterns.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Environmental Sciences
Zhi-Fang Zhao, Zhong-Jian Huang, Zuo-Deng Sun, Zheng-Yi Liu, Song Qin, Tong Han, Xin-Yu Qi, Xi-Yan Sun, Zhi-Hai Zhong
Summary: Few studies have investigated the dynamics of dissolved organic carbon (DOC) release in macroalgae. This study examined the short-term changes in temperature, light, and salinity on DOC release in Sargassum thunbergii. The results showed that different levels of photosynthetically active radiation, salinity, and temperature all influenced the rate of DOC release in S. thunbergii.
MARINE POLLUTION BULLETIN
(2023)
Article
Agronomy
M. K. Malini, Sourabh Karwa, Payal Priyadarsini, Pramod Kumar, Shivani Nagar, Mahesh Kumar, Sudhir Kumar, Viswanathan Chinnusamy, Renu Pandey, Madan Pal
Summary: Rising air temperature is a major constraint for crop productivity. Rice crops are sensitive to high-temperature stress, which affects photosynthesis and gas exchange traits. A study screened seventy-three Indian rice accessions based on their photosynthetic response under high temperature and characterized two contrasting accessions for heat tolerance. The tolerant accession showed marginal decrease in photosynthesis but significant increase in stomatal conductance and transpiration, while the sensitive accession exhibited large reductions in photosynthesis and slight increases in stomatal conductance and transpiration. The study concludes that tolerant rice accessions can be used in breeding programs for developing climate-resilient rice genotypes.
Article
Green & Sustainable Science & Technology
Susana Constenla-Villoslada, Yanyan Liu, Jiaming Wen, Ying Sun, Shun Chonabayashi
Summary: Anthropogenic land degradation and climate change-induced weather shocks pose a threat to rural livelihoods in developing economies. The Sustainable Land Management Project in Ethiopia has shown positive impacts in restoring land productivity and increasing resilience to weather shocks. Remote sensing technologies can be used to assess the effectiveness of ecosystem restoration programs.
NATURE SUSTAINABILITY
(2022)
Article
Plant Sciences
Cong Wang, Qiuli Gu, Lianjia Zhao, Chunyan Li, Jintao Ren, Jianxin Zhang
Summary: This study used chlorophyll fluorescence to evaluate the effects of high temperature and high light on soybean inverted leaves. The results showed that inverted leaves exhibited lower photosynthetic performance and activity of photosystem II under these stresses.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Xing-long Wang, Yu-peng Zhu, Ye Yan, Jia-min Hou, Hai-jiang Wang, Ning Luo, Dan Wei, Qing-feng Meng, Pu Wang
Summary: The study shows that elevating soil water content can improve crop resilience to heat stress, prolong the effective period of photosynthesis, and enhance leaf photosynthetic capacity. This has important implications for adapting to the impact of climate warming on maize production.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2023)
Article
Plant Sciences
Jin Guan, Ke Teng, Yuesen Yue, Yidi Guo, Lingyun Liu, Shuxia Yin, Liebao Han
Summary: The ZjNOL gene in the warm-season turfgrass Zoysia japonica was found to be highly expressed in senescent leaves. ZjNOL accelerates leaf senescence by promoting the accumulation of abscisic acid and carbohydrates, as well as causing excessive accumulation of reactive oxygen species and oxidative stress. Additionally, ZjNOL inhibits photosynthetic efficiency by damaging the oxygen-evolving complex. These findings highlight the important role of ZjNOL in chlorophyll degradation and senescence, making it a valuable candidate gene for genome editing to enhance the green period and photosynthesis efficiency of Z. japonica germplasm.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Kanchan Jumrani, Virender Singh Bhatia, Sunita Kataria, Saud A. Alamri, Manzer H. Siddiqui, Anshu Rastogi
Summary: This study demonstrates that soybean plants inoculated with arbuscular mycorrhizal fungi (AMF) exhibit better growth, photosynthetic parameters, and seed yield under high temperature, while alleviating the damage to the structure and function of the photosynthetic apparatus caused by heat stress.
Article
Environmental Sciences
Xingfan Li, Jiyu Du, Baiquan Song, Xi Zhang, Muhammad Riaz
Summary: This study simulated the effects of Fomesafen drift deposition on sugar beet and found that a high dose of Fomesafen inhibited sugar beet growth and damaged the photosynthetic system, increasing malondialdehyde content and affecting the activity of peroxidase in leaves.
Article
Agronomy
Xiaoyun Huang, Hongxing Chen, Hui Chen, Chengwu Fan, Yueying Tai, Xiaoran Chen, Wang Zhang, Tengbing He, Zhenran Gao
Summary: The temporal and spatial heterogeneity of chlorophyll content and fluorescence in rice canopy leaves under different Cd stress concentrations was explored in this study. The responses of relative chlorophyll content (SPAD) and chlorophyll fluorescence (ChlF) parameters to Cd stress in different growth stages were analyzed. It was found that lower leaves had higher SPAD values in the tillering stage, while upper leaves had higher SPAD values in the heading and filling stages. Certain ChlF parameters were more sensitive to Cd stress than others.