Environmental stress includes adverse factors like water deficit, high salinity, enhanced temperature and heavy metals etc. These stresses alter the normal growth and metabolic processes of plants including photosynthesis. Major photosynthetic responses under various stresses include inhibition of photosystems (I and II), changes in thylakoid complexes, decreased photosynthetic activity and modifications in structure and functions of chloroplasts etc. Various defense mechanisms are triggered inside the plants in response to these stresses that are regulated by plant hormones or plant growth regulators. These phytohormones include abscisic acid, auxins, cytokinins, ethylene, brassinosteroids, jasmonates and salicylic acid etc. The present review focuses on stress protective effects of plants hormones on the photosynthetic responses.
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http://dx.doi.org/10.2174/1389203716666150330125215 | DOI Listing |
Tree Physiol
January 2025
Forest Tree Breeding Center, Forestry and Forest Products Research Institute, Forest Research and Management Organization, Hitachi, Ibaraki 319-1301, Japan.
The selection of plant genotypes characterized by wellness and stable growth under drought-stress conditions amid ongoing climate change is an important challenge in forest tree breeding. The introduction of molecular markers will enable efficient selection of breeding materials that are resistant to drought stress in forest trees as well as in crop species. Japanese cedar, Cryptomeria japonica, the most dominant forest species in Japan, grows well on mesic sites and is characterized by intraspecific variation in its drought-stress response.
View Article and Find Full Text PDFFront Plant Sci
December 2024
Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.
Introduction: Heat stress caused by global warming adversely affects wheat yield through declining most nutritional quality attributes in grains, excluding grain protein content.
Methods: This research investigated the biochemical, physiological, and antioxidant responses of wheat plants under heat stress, focusing on the role of plant growth-promoting bacteria ( sp.).
J Hazard Mater
December 2024
Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju 61186, Republic of Korea. Electronic address:
Metal-organic frameworks (MOFs) are advanced porous materials composed of metal ions and organic ligands, known for their unique structures and fascinating physio-chemical properties. To ensure their safe production and applications, it is crucial to thoroughly investigate their toxicity and environmental hazards. However, the potential risks of MOFs, particularly their impact on plants remained underexplored.
View Article and Find Full Text PDFSci Total Environ
January 2025
Department of Animal Ecology & Systematics, Justus Liebig University, Giessen, Germany; Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kāne'ohe, HI, USA.
The pollution of marine environments with plastics, particularly microplastic (MP, i.e., plastic particles <5 mm), is a major threat to marine biota, including corals.
View Article and Find Full Text PDFEnviron Res
January 2025
Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, School of Marine Sciences, Guangxi University, Nanning, 530004, China.
Within the coral reef habitat, members of the Symbiodiniaceae family stand as pivotal symbionts for reef-building corals. However, the physiological response of Symbiodiniaceae on microplastics are still poorly understood. Research conducted in this investigation assessed the harmful impact of polystyrene microparticles (PS-MPs) on Cladocopium goreaui, a Symbiodiniaceae species with a broad distribution.
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