Hydrogen sulfide mediates nicotine biosynthesis in tobacco (Nicotiana tabacum) under high temperature conditions

Chen, Xiaodong; Chen, Qian; Zhang, Xiaoming; Li, Ruijing; Jia, Yujie; Ef, Abd_Allah; Jia, Ai‐Qun; Hu, Liwei; Hu, Xiangyang

doi:10.1016/j.plaphy.2016.02.033

Cited by 61 publications

(33 citation statements)

References 27 publications

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“…Related to this, Walker et al (2017) reported that the k value increased with temperature much more in tobacco than in wheat and soybean. Interestingly, this increase in k corresponds well with an increase in nicotine biosynthesis in tobacco plants exposed to high temperatures (Chen et al, 2016). While the reasons for changes in k values in vivo are mostly speculative at the moment, further research on the extent of use of photorespiratory carbon for other metabolic processes will undoubtedly lead to significant advances in our understanding of the costs and benefits of photorespiration.…”

Section: Stoichiometry Of Co 2 Release Per Oxygenation Reactionmentioning

confidence: 62%

Photorespiration in the context of Rubisco biochemistry, CO₂ diffusion and metabolism

2020

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Summary Photorespiratory metabolism is essential for plants to maintain functional photosynthesis in an oxygen‐containing environment. Because the oxygenation reaction of Rubisco is followed by the loss of previously fixed carbon, photorespiration is often considered a wasteful process and considerable efforts are aimed at minimizing the negative impact of photorespiration on the plant’s carbon uptake. However, the photorespiratory pathway has also many positive aspects, as it is well integrated within other metabolic processes, such as nitrogen assimilation and C1 metabolism, and it is important for maintaining the redox balance of the plant. The overall effect of photorespiratory carbon loss on the net CO2 fixation of the plant is also strongly influenced by the physiology of the leaf related to CO2 diffusion. This review outlines the distinction between Rubisco oxygenation and photorespiratory CO2 release as a basis to evaluate the costs and benefits of photorespiration.

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Section: Stoichiometry Of Co 2 Release Per Oxygenation Reactionmentioning

confidence: 62%

Photorespiration in the context of Rubisco biochemistry, CO₂ diffusion and metabolism

2020

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“…In 3-week-old seedlings of tobacco, Chen et al (2016) found that treatment with high temperature at 35°C increased the activity of LCD, which in turn induced the production of endogenous H 2 S (8 nmol g -1 FW) in tobacco seedlings, and that H 2 S production remained elevated level after 3 days of high temperature exposure. More interestingly, H 2 S production by high temperature can induce the accumulation of jasmonic acid, followed by promoting nicotine synthesis.…”

Section: H2s Signaling Triggered By Abiotic Stressmentioning

confidence: 96%

“…Many studies found that signaling triggered by a moderate stress, such as Ca 2+ , ABA, H 2 O 2 , and NO signaling, is a common response of plants to abiotic and biotic stress, which in turn induces the acquisition of cross-adaptation. In addition, exogenously applied these signal molecules also can trigger corresponding signaling, followed by improving stress tolerance of plants, thus Ca 2+ , ABA, H 2 O 2 , and NO are considered to be candidate signal molecules in cross-adaptation in plants (Knight, 2000; Gong et al, 2001; Li and Gong, 2011; Li et al, 2012b; Fang H. et al, 2014; Qiao et al, 2015; Chen et al, 2016). More recently, many research groups found that a number of abiotic stresses also can trigger H 2 S signaling, while exogenously applied H 2 S can induce cross-adaptation to multiple stresses, indicating that H 2 S represents a potential candidate signal molecule in cross-adaptation in plants (Li, 2013; Lisjak et al, 2013; Calderwood and Kopriva, 2014; Hancock and Whiteman, 2014; Fotopoulos et al, 2015; Guo et al, 2016).…”

Section: Conclusion and Future Prospectivementioning

confidence: 99%

Hydrogen Sulfide: A Signal Molecule in Plant Cross-Adaptation

2016

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For a long time, hydrogen sulfide (H2S) has been considered as merely a toxic by product of cell metabolism, but nowadays is emerging as a novel gaseous signal molecule, which participates in seed germination, plant growth and development, as well as the acquisition of stress tolerance including cross-adaptation in plants. Cross-adaptation, widely existing in nature, is the phenomenon in which plants expose to a moderate stress can induce the resistance to other stresses. The mechanism of cross-adaptation is involved in a complex signal network consisting of many second messengers such as Ca2+, abscisic acid, hydrogen peroxide and nitric oxide, as well as their crosstalk. The cross-adaptation signaling is commonly triggered by moderate environmental stress or exogenous application of signal molecules or their donors, which in turn induces cross-adaptation by enhancing antioxidant system activity, accumulating osmolytes, synthesizing heat shock proteins, as well as maintaining ion and nutrient balance. In this review, based on the current knowledge on H2S and cross-adaptation in plant biology, H2S homeostasis in plant cells under normal growth conditions; H2S signaling triggered by abiotic stress; and H2S-induced cross-adaptation to heavy metal, salt, drought, cold, heat, and flooding stress were summarized, and concluded that H2S might be a candidate signal molecule in plant cross-adaptation. In addition, future research direction also has been proposed.

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“…Under HS or other abiotic stresses, plants accumulate H 2 S (Calderwood and Kopriva 2014). H 2 S is produced by L‐cysteine desulfhydrase and D‐cysteine desulfhydrase, the activities of which can be upregulated by HS treatment (Chen et al ). An exogenously applied H 2 S donor, NaHS, was shown to increase the thermotolerance of maize (Li et al ).…”

Section: Heat Shock Signaling Mechanismsmentioning

confidence: 99%

Molecular mechanisms governing plant responses to high temperatures

Kang

Ren

et al. 2018

JIPB

224

181

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The increased prevalence of high temperatures (HTs) around the world is a major global concern, as they dramatically affect agronomic productivity. Upon HT exposure, plants sense the temperature change and initiate cellular and metabolic responses that enable them to adapt to their new environmental conditions. Decoding the mechanisms by which plants cope with HT will facilitate the development of molecular markers to enable the production of plants with improved thermotolerance. In recent decades, genetic, physiological, molecular, and biochemical studies have revealed a number of vital cellular components and processes involved in thermoresponsive growth and the acquisition of thermotolerance in plants. This review summarizes the major mechanisms involved in plant HT responses, with a special focus on recent discoveries related to plant thermosensing, heat stress signaling, and HT-regulated gene expression networks that promote plant adaptation to elevated environmental temperatures.

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Hydrogen sulfide mediates nicotine biosynthesis in tobacco (Nicotiana tabacum) under high temperature conditions

Cited by 61 publications

References 27 publications

Photorespiration in the context of Rubisco biochemistry, CO₂ diffusion and metabolism

Photorespiration in the context of Rubisco biochemistry, CO₂ diffusion and metabolism

Hydrogen Sulfide: A Signal Molecule in Plant Cross-Adaptation

Molecular mechanisms governing plant responses to high temperatures

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Hydrogen sulfide mediates nicotine biosynthesis in tobacco (Nicotiana tabacum) under high temperature conditions

Cited by 61 publications

References 27 publications

Photorespiration in the context of Rubisco biochemistry, CO2 diffusion and metabolism

Photorespiration in the context of Rubisco biochemistry, CO2 diffusion and metabolism

Hydrogen Sulfide: A Signal Molecule in Plant Cross-Adaptation

Molecular mechanisms governing plant responses to high temperatures

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Product

Resources

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Photorespiration in the context of Rubisco biochemistry, CO₂ diffusion and metabolism

Photorespiration in the context of Rubisco biochemistry, CO₂ diffusion and metabolism