Antagonism or synergism? Combined effects of enhanced UV-B radiation and acid rain on photosynthesis in seedlings of two C4 plants

Liu, Jinchun; Zhao, Yajie; Song, Haiyan; Chen, Jinyi; Le, Yun

doi:10.1016/j.chnaes.2018.12.009

Cited by 8 publications

(5 citation statements)

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“…Photosynthesis is a fundamental physio-morphological process to sustain plant life activities, including growth and development, and this process helps in the synthesis of organic composites by the usage of light energy in plants [ 17 , 42 ]. Photosynthetic pigments like chlorophyll and carotenoids are vital for photosynthesis, which is essential for the growth and development of plants, and these are the penetrating signs to observe the harmful impacts of different environmental hazards on germination, seedling growth, leaf structure, health and function [ 43 , 44 , 45 ]. Chlorophyll converts carbon-dioxide and water into biochemical energy like carbohydrates and oxygen by using light energy [ 46 ].…”

Section: Impacts Of Acid Rain On the Photosynthesis Potential In Pmentioning

confidence: 99%

“…Chlorophyll fluorescence is certainly affected by abiotic stresses and commonly used as a sensitive indicator to observe the photosynthetic status of plants [ 61 ]. The measurement of chlorophyll fluorescence is considered as a rapid, prominent and reliable technique to evaluate photosynthetic activities in any stressed plant [ 43 , 62 ]. The measurements of the primary photosystem II (PSII) are observed as the value of the Fo (minimal fluorescence level when plastoquinone electron acceptor pool, Qa, is fully oxidized) and the ratio of Fv and Fm (maximum quantum efficiency of photosystem-II), which are primarily sensitive to environmental stress conditions [ 10 , 58 ].…”

Section: Impacts Of Acid Rain On the Photosynthesis Potential In Pmentioning

confidence: 99%

“…AR in tomato seedlings increases Fo value and decreases Fv/Fm ratio, which indicate that AR stress can knock down the photochemical efficiency of PSII photosynthetic apparatus [ 57 , 58 ]. Similarly, AR decreased the efficiency of photosystem II in different crops, like maize and amaranth seedlings [ 43 ]. The possible reason was that the high acidity level of AR water can damage the photosynthetic pigments and injure the assimilation tissues.…”

Section: Impacts Of Acid Rain On the Photosynthesis Potential In Pmentioning

confidence: 99%

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Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

et al. 2021

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Air pollution has been a long-term problem, especially in urban areas, that eventually accelerates the formation of acid rain (AR), but recently it has emerged as a serious environmental issue worldwide owing to industrial and economic growth, and it is also considered a major abiotic stress to agriculture. Evidence showed that AR exerts harmful effects in plants, especially on growth, photosynthetic activities, antioxidant activities and molecular changes. Effectiveness of several bio-regulators has been tested so far to arbitrate various physiological, biochemical and molecular processes in plants under different diverse sorts of environmental stresses. In the current review, we showed that silicon (tetravalent metalloid and semi-conductor), glutathione (free thiol tripeptide) and melatonin (an indoleamine low molecular weight molecule) act as influential growth regulators, bio-stimulators and antioxidants, which improve plant growth potential, photosynthesis spontaneity, redox-balance and the antioxidant defense system through quenching of reactive oxygen species (ROS) directly and/or indirectly under AR stress conditions. However, earlier research findings, together with current progresses, would facilitate the future research advancements as well as the adoption of new approaches in attenuating the consequence of AR stress on crops, and might have prospective repercussions in escalating crop farming where AR is a restraining factor.

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Section: Impacts Of Acid Rain On the Photosynthesis Potential In Pmentioning

confidence: 99%

Section: Impacts Of Acid Rain On the Photosynthesis Potential In Pmentioning

confidence: 99%

Section: Impacts Of Acid Rain On the Photosynthesis Potential In Pmentioning

confidence: 99%

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Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

et al. 2021

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“…Inhibition of photosynthesis may result from stomatal as well as non‐stomatal limitations (Farquhar & Sharkey, 1982). While stomatal limitation could be dominant under mild stress, drastic reduction in photosynthesis under stress combinations could be due to both stomatal and non‐stomatal limitation (damage to chlorophyll and components of photosynthesis machinery) (Oneto et al, 2016; Wungrampha et al, 2019; Liu et al, 2019). Besides, net photosynthetic rate, stomatal conductance and transpiration have been suggested to be important traits for heat and drought avoidance (Bahuguna et al, 2015; Kadam et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Impact of individual, combined and sequential stress on photosynthesis machinery in rice (Oryza sativa L)

Anwar,

Joshi,

Bahuguna

et al. 2024

Physiologia Plantarum

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Abiotic stresses such as heat, drought and submergence are major threats to global food security. Despite simultaneous or sequential occurrence of these stresses being recurrent under field conditions, crop response to such stress combinations is poorly understood. Rice is a staple food crop for the majority of human beings. Exploitation of existing genetic diversity in rice for combined and/or sequential stress is a useful approach for developing climate‐resilient cultivars. We phenotyped ~400 rice accessions under high temperature, drought, or submergence and their combinations. A cumulative performance index revealed Lomello as the best performer across stress and stress combinations at the seedling stage. Lomello showed a remarkable ability to maintain a higher quantum yield of photosystem (PS) II photochemistry. Moreover, the structural integrity of the photosystems, electron flow through both PSI and PSII and the ability to protect photosystems against photoinhibition were identified as the key traits of Lomello across the stress environments. A higher membrane stability and an increased amount of leaf chlorophyll under stress may be due to an efficient management of reactive oxygen species (ROS) at the cellular level. Further, an efficient electron flow through the photosystems and, thus, a higher photosynthetic rate in Lomello is expected to act as a sink for ROS by reducing the rate of electron transport to the high amount of molecular oxygen present in the chloroplast. However, further studies are needed to identify the molecular mechanism(s) involved in the stability of photosynthetic machinery and stress management in Lomello during stress conditions.

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“…Chl a is blue-green, while Chl b is yellow-green. A higher ratio translates to greener plant leaves and a more-stable photosynthetic system [28][29][30][31]. This study aimed to investigate the impact of exogenous small peptides and surfactants on the photosynthetic system of tea plants.…”

Section: Discussionmentioning

confidence: 99%

Enhancing the Adaptability of Tea Plants (Camellia sinensis L.) to High-Temperature Stress with Small Peptides and Biosurfactants

Chen,

Song,

et al. 2023

Plants

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Tea plants are highly susceptible to the adverse effects of a high-temperature climate, which can cause reduced yield and quality and even lead to plant death in severe cases. Therefore, reducing the damage caused by high-temperature stress and maintaining the photosynthetic capacity of tea plants is a critical technical challenge. In this study, we investigated the impact of small oligopeptides (small peptides) and surfactants on the high-temperature-stress tolerance of tea plants. Our findings demonstrated that the use of small peptides and surfactants enhances the antioxidant capacity of tea plants and protects their photosynthetic system. They also induce an increase in gibberellin (GA) content and a decrease in jasmonic acid (JA), strigolactone (SL), auxin (IAA), and cytokinin (CTK) content. At the same time, small peptides regulate the metabolic pathways of diterpenoid biosynthesis. Additionally, small peptides and surfactants induce an increase in L-Carnosine and N-Glycyl-L-Leucine content and a decrease in (5-L-Glutamyl)-L-Amino Acid content, and they also regulate the metabolic pathways of Beta-Alanine metabolism, Thiamine metabolism, and Glutathione metabolism. In summary, small peptides and surfactants enhance the ability of tea plants to resist high-temperature stress.

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Antagonism or synergism? Combined effects of enhanced UV-B radiation and acid rain on photosynthesis in seedlings of two C4 plants

Cited by 8 publications

References 47 publications

Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

Impact of individual, combined and sequential stress on photosynthesis machinery in rice (Oryza sativa L)

Enhancing the Adaptability of Tea Plants (Camellia sinensis L.) to High-Temperature Stress with Small Peptides and Biosurfactants

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