Article
Environmental Sciences
Zhihan Cao, Ping Li, Jinchuang Ru, Xuqian Cao, Xu Wang, Bin Liu, Zhi-Hua Li
Summary: This study evaluated the impact of environmental levels of triphenyltin (TPT) on marine Chlorella sp. It found that TPT had both promoting and inhibitory effects on the growth of marine Chlorella sp. depending on the concentration. The chlorophyll composition changed, and oxidative damage and gene expression alterations were observed. These findings contribute to a better understanding of the ecological toxicity of TPT in marine environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Hai-Shun Xu, Lin Zhu, Yi Mei
Summary: This study evaluated the effects of high nitrogen and phosphorus levels on perennial ryegrass, finding that high concentrations might delay seed germination, cause plant withering, and inhibit photosynthesis, but could also alleviate oxidative stress and decrease the removal capacity of nitrogen and phosphorus by plants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Yunfei Sun, Yitong Chen, Junjun Wei, Xingxing Zhang, Lu Zhang, Zhou Yang, Yuan Huang
Summary: Elevated UVB radiation consistently decreased the population carrying capacities and photosynthesis of the three species in monocultures. In cocultures, Chlorella pyrenoidosa was competitively excluded by Scenedesmus obliquus, while unicellular Microcystis aeruginosa suppressed the population growth of Scenedesmus obliquus under no UVB but S. obliquus tended to be a better competitor under 0.3-0.7 Wm(-2) UVB exposure.
Article
Plant Sciences
Junping Liu, Wenjing Chen, Hankun Wang, Fangren Peng, Mengyun Chen, Shuai Liu, Guolin Chu
Summary: The study found that pecan seedlings are most sensitive to nitrogen fertilizers and least sensitive to phosphorus fertilizers. The best treatment for improving growth and photosynthetic characteristics was N2P1K3. The optimal NPK fertilizer combination ranged from 3.05-7.28 g/plant of N, 1.79-2.32 g/plant of P, and 1.41-2.62 g/plant of K.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2021)
Article
Horticulture
Tiantian Chen, Junjie Peng, Minjie Qian, Xian Shui, Jingjia Du, Feng Liu, Kaibing Zhou
Summary: In the future, enhanced UV-B radiation is likely to affect the photosynthesis of plants, including mangoes. This study investigated the effects of enhanced UV-B radiation on the photosynthesis of mangoes. It was found that the treatment caused damage to the leaf cell membrane system, resulting in stomatal and nonstomatal limitations of photosynthesis by disrupting stomatal structure and chloroplast submicrostructure, as well as downregulating the expression of rbcL. The leaves may respond by upregulating rbcS expression to mitigate the damage caused by enhanced UV-B radiation.
Article
Horticulture
Hong Wang, Yujian Guo, Jianjun Zhu, Kun Yue, Kaibing Zhou
Summary: The study found that under 96 kJ/(m²·d) of UV-B radiation, mango trees showed decreased yield, decreased sugar content and vitamin C in fruits, and inhibited photosynthesis in leaves; while under 24 kJ/(m²·d), the content of photosynthetic pigments in leaves increased, but overall performance was similar to the control group.
Article
Environmental Sciences
Bo Wang, Tong Ye, Caiyan Li, Xiaoyan Li, Lanzhou Chen, Gaohong Wang
Summary: In this study, it was found that desert green algae, Chlorella sp., can maintain high photosynthetic activity under UV-B stress. The results showed that Chlorella sp. may have strong system characteristics for scavenging reactive oxygen species (ROS) and the antioxidant enzyme system exhibited a protective effect against enhanced UV-B radiation. Transcriptomic data revealed that a strong photosynthetic system, efficient DNA repair, and changes in the expression of genes encoding ribosomal protein are responsible for the high UV-B tolerance characteristics of Chlorella sp.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Biochemistry & Molecular Biology
Bowen Liu, Si Long, Kening Liu, Tianqi Zhu, Jiongjiong Gong, Shuanghong Gao, Ruijia Wang, Liyun Zhang, Tieyuan Liu, Yuefei Xu
Summary: This study revealed that Paclobutrazol (PBZ) enhances the resistance of tall fescue to low-light stress by regulating growth, photosynthesis, oxidative defense, and hormone levels. PBZ treatment increased photosynthetic capacity and antioxidant enzyme activities, while decreasing gibberellic acid synthesis and increasing abscisic acid concentration. These findings suggest that PBZ improves tall fescue's tolerance to low-light stress by enhancing antioxidation and photosynthetic capacity while altering hormone levels.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Aslihan Cetinbas-Genc, Orcun Toksoz, Chiara Piccini, Ozkan Kilin, Nuzhet Cenk Sesal, Giampiero Cai
Summary: This study examined the effects of UV-B radiation on hazelnut pollen. The results showed that exposure to UV-B at different times and distances adversely affected pollen viability, germination rate, tube length, as well as the levels of antioxidant molecules and UV-absorbing compounds.
Article
Plant Sciences
Mariana Bomfim Soares, Renato de Mello Prado, Luis Felipe Lata Tenesaca, Jose Clebson Barbosa Lucio, Rogerio Falleiros Carvalho
Summary: Phytochromes B1 and B2 play important roles in regulating the nutritional, physiological, and growth changes in plants. The study found significant differences in growth performance between phyB1 and phyB2 plants under nutritional sufficiency and deficiency of N, P, and K, providing a new perspective on plant photosensitive responses.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Anayat Rasool Mir, Pravej Alam, Shamsul Hayat
Summary: IAA can protect the photosynthetic machinery, carbohydrate metabolism, and growth of Brassica juncea under copper stress, especially at a concentration of 10(-8) M.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Agronomy
Priscila Ferreira Batista, Alan Carlos da Costa, Adinan Alves da Silva, Gabriel Martins Almeida, Maria Fernanda Marques Rodrigues, Emily Carolina Duarte Santos, Arthur Almeida Rodrigues, Caroline Muller
Summary: Changes in plant metabolism due to combined water deficit, high irradiance, and high temperatures can cause damage to crops, leading to yield losses. This study aimed to investigate the potential of potassium phosphite (PP) to induce tolerance in soybean plants under water deficit and high irradiance conditions. The experiment was conducted in a controlled growth chamber, and the results showed that PP application increased photosynthetic rate and decreased lipid peroxidation and electrolyte leakage, indicating enhanced stability of cell membranes. These positive effects may be attributed to the activation of antioxidant enzymes and osmotic adjustment. Overall, PP is a promising method to alleviate the negative effects of combined water deficit and high irradiance stresses on soybean plants.
Article
Environmental Sciences
Huarong Sun, Yilan Shi, Ping Zhao, Guangqiang Long, Chaohang Li, Jiajing Wang, Dan Qiu, Chunmiao Lu, Yue Ding, Lin Liu, Shuran He
Summary: The co-exposure of arsenic (As) and microplastics (MPs) poses a significant environmental problem in terrestrial ecosystems. This study investigated the effects of polyethylene microplastic particles (PEMPs) and biodegradable microplastic particles (BPMPs) on As accumulation, growth, and physio-biochemical performance of maize seedlings in As-contaminated soil. The results suggest that both PEMPs and BPMPs can reduce the accumulation of As in maize seedlings, with potentially greater toxic effects observed for BPMPs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Jiao-Zhen Zhang, Chan Wang, Ting-Ting Zhu, Jie Fu, Hui Tan, Cheng-Min Zhang, Ai-Xia Cheng, Hong-Xiang Lou
Summary: In this study, the spatial distribution of bibenzyls in the liverwort Marchantia polymorpha was mapped, and it was found that they mainly exist in the female receptacle. The expression level of bibenzyls increased after UV-B irradiation, indicating their important role in the UV-B tolerance of liverworts.
Article
Biochemistry & Molecular Biology
Xiaolong Yang, Yumeng Zhang, Ting Liu, Jiali Shi, Mingfang Qi, Yufeng Liu, Tianlai Li
Summary: The study demonstrates that melatonin treatment can enhance the photosynthetic efficiency and reduce photoinhibition of tomato plants under low night temperatures. This is achieved by regulating electron transport and upregulating genes and proteins related to environmental adaptation and chloroplast integrity maintenance. These findings provide insights into the molecular mechanism of melatonin-mediated abiotic stress resistance.
