The exogenous application of spermidine alleviates photosynthetic inhibition and membrane lipid peroxidation under low-light stress in tomato (Lycopersicon esculentum Mill.) seedlings

Yu, Hongjun; Zhao, Wenchao; Wang, Ming; Yang, Xue; Jiang, Weijie

doi:10.1007/s10725-015-0102-6

Cited by 12 publications

(4 citation statements)

References 31 publications

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“…In this study, compared with no shading, the ch rophyll and carotenoid contents in shaded leaves increased significantly at the later sta while the chl a/b ratio decreased, which was consistent with the reports of strawberry a rice [2,29]. The results indicated that shaded jujube leaves obtained higher light energy increasing photosynthetic pigment contents and meanwhile improved photosynthe phosphorylation activity by reducing the chl a/b ratio [30,31]. However, the decrease specific leaf weight in jujube leaves indicated that the enhanced capacity for light captu did not compensate for the reduction in leaf photosynthesis caused by shading, wh was similar to results from studies of black currant, grape, and cigar tobacco leaves [3 34].…”

Section: Shading Increased Photosynthetic Pigment Contents Of Leaves ...supporting

confidence: 91%

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Shading Inhibits Sugar Accumulation in Leaf and Fruit of Jujube (Ziziphus jujuba Mill.)

Wang

Ren

et al. 2022

Horticulturae

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Jujube is a characteristic light-demanding fruit tree, but fruit quality is frequently degraded because of the weak light in protected cultivation facilities in south China. In this study, a black shade net was used to set three light intensities artificially: no shading (0%, control, NS), moderate shading (45%, MS), and severe shading (76%, SS) to investigate the effect of low light on sugar metabolism of jujube. Compared with NS, chlorophyll and carotenoid contents in shaded leaves were increased, while specific leaf weight was decreased. A decrease in sucrose content, rather than fructose and glucose, was the main factor affecting sugar content in shaded leaves and fruits. Low expression of ZjSS2 and ZjSS3 inhibited sugar synthesis in shaded leaves, thereby reducing sucrose content by 23.7% in SS leaf than that in NS. Compared with NS, sucrose content in SS fruit was decreased by 58.1%, which was mainly caused by the down-regulated expression of ZjSS2 and ZjSPS1. In conclusion, sugar accumulation in leaf and fruit with shading treatment was suppressed, which was associated with differential transcription levels of related metabolic genes. The study provides new insights into sugar metabolism in leaf and fruit of phototropic plants under low light environments, such as jujube.

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Section: Shading Increased Photosynthetic Pigment Contents Of Leaves ...supporting

confidence: 91%

“…The chlorophyll contents increased first and then decreased, while carotenoid content gradually increased during leaf development (Figure 1). The contents of chl a, chl b, and total chl were significantly higher with MS and SS treatment for 31…”

Section: Dynamic Changes Of Photosynthetic Pigments and Specific Leaf...mentioning

confidence: 91%

Shading Inhibits Sugar Accumulation in Leaf and Fruit of Jujube (Ziziphus jujuba Mill.)

Wang

Ren

et al. 2022

Horticulturae

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“…Generally, higher levels of light than are necessary for crop growth cause photostress, leading to photoinhibition, which reduces growth and decreases the efficiency of the quantum yield in reaction centers (RCs) of photosystem II (PSII) ( Szymańska et al, 2017 ; Lima-Melo et al, 2019 ). In contrast, low light conditions during the cultivation of field crops and protected horticultural crops have been reported to not only reduce photosynthesis and plant growth, but also cause yield loss and quality degradation ( Yu et al, 2016 ; Gao et al, 2017 ; Zhu et al, 2017 ; Lu et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Correlation Among Phenotypic Parameters Related to the Growth and Photosynthesis of Strawberry (Fragaria × ananassa Duch.) Grown Under Various Light Intensity Conditions

Choi

2021

Front. Plant Sci.

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The objective of this study was to investigate characteristics of phenotypic parameters such as physiology, yield, and fruit quality responses of strawberry (Fragaria × ananassa Duch.) to various light intensity conditions (VLICs), and to determine the correlations among these phenotypic parameters. Strawberry plants were cultivated in a smart greenhouse separated into four areas, three of which were completely shaded by curtains from 20:00 until 10:00 (3 hS), 12:00 (5 hS), and 14:00 (7 hS), respectively. The fourth area was a non-shaded control treatment (0 hS). The ambient light intensities during the experimental period for the 0, 3, 5, and 7 hS treatments were 1,285, 1,139, 770, and 364 mol⋅m–2, respectively. Strawberry plants grown under low light intensity conditions experienced decreases in photosynthetic rate, stomatal conductance, and sugar accumulation compared to the 0 hS. Petiole generation and fruit yield were also sharply decreased in proportion to the degree of decrease in light intensity. In contrast, photosynthetic pigment content was shown to increase under low light conditions. Organic acid contents (excluding acetic acid) and leaflet size did not change significantly under low light conditions compared to the 0 hS. Changes to light intensity are considered to induce changes to the phenotypic characteristics of strawberry plants to favor growth using the energy and carbon skeletons obtained through respiration and photosynthesis. In the 7 hS treatment, where light intensity was drastically reduced, NPQ, qP, and RFd values as chlorophyll a fluorescence parameters were significantly lowered, which could indicate their measurement as an important technique to check the stress response of plants grown in low light conditions.

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“…This result was unexpected considering that photooxidative stress is usually associated to conditions of excessive light intensities (Li et al, 2018;Roach & Krieger-Liszkay, 2019). However, several works have shown that short-term low light can also induce oxidative stress, as measured by different indicators (Yu et al, 2016;Li et al, 2017;Zhu et al, 2017), although the molecular mechanisms involved in this specific condition is not as well understood as for high light. Our data also show that in vitro leaves displayed much higher ROS accumulation than ex vitro leaves for all treatments, and this response was correlated with progressive decrease in SOD, CAT and APX activities.…”

Section: Discussionmentioning

confidence: 95%

Integrative approach reveals new insights into photosynthetic and redox protection in ex vitro tobacco plantlets acclimatization to increasing light intensity

Vieira¹,

Carvalho²,

Lima‐Melo³

et al. 2020

Biotechnology Research and Innovation

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Integrative mechanisms involving photosynthetic and antioxidant protection regulated by light intensity during in vitro and ex vitro plantlets acclimatization are poorly understood. Tobacco plantlets grown under in vitro and ex vitro environments were exposed to different light regimes to evaluate the role of photosynthesis and antioxidant protection. In vitro plantlets displayed a narrow photosynthetic capacity to cope with light as revealed by low net CO 2 assimilation (P N ), decreased actual quantum efficiency of photosystem II (ΦPSII) associated with non-induction of non-photochemical quenching (NPQ). In contrast, acclimated ex vitro plants showed strong stimulation in P N whereas ΦPSII and NPQ remained at high levels. In vitro plantlets exposed to moderate light suffered strong oxidative stress associated with increased activities of superoxide dismutases, catalases and ascorbate peroxidases, revealing an ineffective antioxidant system. In contrast, ex vitro plants presented lower oxidative damage in parallel to unchanged enzymatic activities, indicating an efficient antioxidant steady state. The levels of reduced ascorbate (ASC) and glutathione (GSH) were also increased only in ex vitro plants in response to excess light. An integrative study based on correlation networks and principal component analyses (PCA) corroborate that the two plant groups indeed displayed contrasting acclimation processes. In conclusion, during in vitro to ex vitro transition, tobacco plantlets exposed to increasing light display physiological adjustments involving photosynthesis and improvement of the enzymatic and non-enzymatic antioxidant systems. These findings highlight the importance of integrative approaches to understand ex vitro acclimatization to environmental stimuli.

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The exogenous application of spermidine alleviates photosynthetic inhibition and membrane lipid peroxidation under low-light stress in tomato (Lycopersicon esculentum Mill.) seedlings

Cited by 12 publications

References 31 publications

Shading Inhibits Sugar Accumulation in Leaf and Fruit of Jujube (Ziziphus jujuba Mill.)

Shading Inhibits Sugar Accumulation in Leaf and Fruit of Jujube (Ziziphus jujuba Mill.)

Correlation Among Phenotypic Parameters Related to the Growth and Photosynthesis of Strawberry (Fragaria × ananassa Duch.) Grown Under Various Light Intensity Conditions

Integrative approach reveals new insights into photosynthetic and redox protection in ex vitro tobacco plantlets acclimatization to increasing light intensity

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