Physiological and Biochemical Response of Rice Cultivars (<i>Oryza Sativa</i> L.) To Elevated Ozone

Ramya, Ambikapathi; Dhevagi, Periyasamy; Priyatharshini, Sengottiyan; Chandrasekhar, C. N.; Valliappan, K.; Venkataramani, S.

doi:10.1080/01919512.2020.1796585

Cited by 13 publications

(6 citation statements)

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“…These results suggest that both of the acute and chronic pollution of surface O 3 reduce rice yield. Yield loss in rice by elevated O 3 at tillering and jointing stage was found in some cultivars (Ramya et al., 2020, 2021), whereas yield loss by elevated O 3 at heading and ripening is not clarified yet. The mechanisms for the yield loss by acute O 3 may be revealed from the chronic experiments, in which rice was grown under elevated O 3 during the whole growing season: (a) Phytotoxicity by O 3 stress inhibits photosynthetic capacity in rice plants (Banerjee & Roychoudhury, 2019), and we found that NF40 at ripening significantly reduced the saturated photosynthetic rate ( A sat ), stomatal conductance ( g s ), and maximum electron transfer rate ( J max ) by 44.3, 55.2, and 51.8% in SY63, respectively (Fu et al., 2021); these suggest that the source supply for the grain filling is limited by the O 3 stress.…”

Section: Resultsmentioning

confidence: 99%

Yield loss in rice by acute ozone pollution could be recovered

Zhang

Cao

et al. 2022

Agricultural & Env Letters

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Rising concentration of surface O3 threatens crop production and food security. To improve the evaluation and develop efficient adaptations, it is essential to study the effects of acute O3 pollution. We adopted this study by open‐top chamber (OTC) method and found that the fumigation of elevated O3 (NF40) for short (tillering and jointing, heading and ripening) and long periods during rice growth reduced the grain yield by 17, 19 and 25%, respectively, showing that both of the acute and chronic O3 pollution reduce rice production. Moreover, in comparison with the plants under chronic O3 pollution, grain yield was increased when O3 was removed at different stages: 32% increment at tillering and jointing and 34% increment at heading and ripening. These results suggest a possibility to recover the yield loss in rice under O3 pollution.

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Section: Resultsmentioning

confidence: 99%

Yield loss in rice by acute ozone pollution could be recovered

Zhang

Cao

et al. 2022

Agricultural & Env Letters

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“…Ozone can directly generate ROS in the leaf mesophyll and guard cell walls after entering the stomata ( Grulke and Heath, 2020 ). Higher exposure activates the pro-oxidant activity of O 3 by increasing ROS accumulation and decreasing the antioxidant machinery in plant cells ( Dhevagi et al., 2021 ; Ramya et al., 2021a ). Moreover, the overgeneration of ROS and the reaction between O 3 and plasma membrane lipids results in peak levels of superoxide and thiobarbituric acid ( Marchica et al., 2019 ).…”

Section: Ozone As a Prooxidant And O 3 -Induced Ox...mentioning

confidence: 99%

“…Plants activate antioxidant defense mechanisms to scavenge ROS and prevent their negative effects. Ozone-tolerant plants have different characteristics that suppress cellular toxic elements, such as peroxidation, and maintain cell membrane stability, which is made possible by the activation of both enzymatic and non-enzymatic antioxidant components ( Dhevagi et al., 2021 ; Ramya et al., 2021a ). Thus, plants can become tolerant to O 3 , which ultimately safeguards their yield under adverse circumstances.…”

Section: Introductionmentioning

confidence: 99%

Elevated tropospheric ozone and crop production: potential negative effects and plant defense mechanisms

Nowroz,

Hasanuzzaman,

Siddika

et al. 2024

Front. Plant Sci.

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Ozone (O3) levels on Earth are increasing because of anthropogenic activities and natural processes. Ozone enters plants through the leaves, leading to the overgeneration of reactive oxygen species (ROS) in the mesophyll and guard cell walls. ROS can damage chloroplast ultrastructure and block photosynthetic electron transport. Ozone can lead to stomatal closure and alter stomatal conductance, thereby hindering carbon dioxide (CO2) fixation. Ozone-induced leaf chlorosis is common. All of these factors lead to a reduction in photosynthesis under O3 stress. Long-term exposure to high concentrations of O3 disrupts plant physiological processes, including water and nutrient uptake, respiration, and translocation of assimilates and metabolites. As a result, plant growth and reproductive performance are negatively affected. Thus, reduction in crop yield and deterioration of crop quality are the greatest effects of O3 stress on plants. Increased rates of hydrogen peroxide accumulation, lipid peroxidation, and ion leakage are the common indicators of oxidative damage in plants exposed to O3 stress. Ozone disrupts the antioxidant defense system of plants by disturbing enzymatic activity and non-enzymatic antioxidant content. Improving photosynthetic pathways, various physiological processes, antioxidant defense, and phytohormone regulation, which can be achieved through various approaches, have been reported as vital strategies for improving O3 stress tolerance in plants. In plants, O3 stress can be mitigated in several ways. However, improvements in crop management practices, CO2 fertilization, using chemical elicitors, nutrient management, and the selection of tolerant crop varieties have been documented to mitigate O3 stress in different plant species. In this review, the responses of O3-exposed plants are summarized, and different mitigation strategies to decrease O3 stress-induced damage and crop losses are discussed. Further research should be conducted to determine methods to mitigate crop loss, enhance plant antioxidant defenses, modify physiological characteristics, and apply protectants.

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“…Plants activate antioxidant defense mechanisms to scavenge ROS and prevent their negative effects. Ozone-tolerant plants have different characteristics that suppress cellular toxic elements, such as peroxidation, and maintain cell membrane stability, which is made possible by the activation of both enzymatic and nonenzymatic antioxidant components (Dhevagi et al, 2021;Ramya et al, 2021a). Thus, plants can become tolerant to O 3 , which ultimately safeguards their yield under adverse circumstances.…”

Section: Introductionmentioning

confidence: 99%

Crop Resistance Mechanisms to Alleviate Climate Change-Related Stress

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Physiological and Biochemical Response of Rice Cultivars (Oryza Sativa L.) To Elevated Ozone

Cited by 13 publications

References 50 publications

Yield loss in rice by acute ozone pollution could be recovered

Yield loss in rice by acute ozone pollution could be recovered

Elevated tropospheric ozone and crop production: potential negative effects and plant defense mechanisms

Crop Resistance Mechanisms to Alleviate Climate Change-Related Stress

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