Hydrogen peroxide is involved in hydrogen sulfide-induced carbon assimilation and photoprotection in cucumber seedlings

Liu, Fengjiao; Fu, Xin; Wu, Guozhong; Feng, Yiqing; Li, Fude; Bi, Huangai; Ai, Xizhen

doi:10.1016/j.envexpbot.2020.104052

Cited by 33 publications

(25 citation statements)

References 48 publications

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“…When plants suffer from various abiotic stresses, the imbalance of redox state and the disorder of ion transport will largely restrict the photosynthesis of plants. Exogenous H 2 S can promote photosynthesis with a higher chlorophyll content in a variety of plants (Chen et al 2015b ; Liu et al 2020b ; Parveen et al 2017 ), even in lower algae (Dooley et al 2013b , 2015 ; Joshi et al 2020 ), suggesting that the promotion of H 2 S on plant photosynthesis appeared in a very early period of plant evolution to improve plant survival. Chen et al ( 2011 ) have revealed the role of H 2 S in photosynthesis in Spinacia oleracea .…”

Section: H 2 S Contributes To Plant Growth and Devmentioning

confidence: 99%

Hydrogen sulfide (H2S) signaling in plant development and stress responses

et al. 2021

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Hydrogen sulfide (H 2 S) was initially recognized as a toxic gas and its biological functions in mammalian cells have been gradually discovered during the past decades. In the latest decade, numerous studies have revealed that H 2 S has versatile functions in plants as well. In this review, we summarize H 2 S-mediated sulfur metabolic pathways, as well as the progress in the recognition of its biological functions in plant growth and development, particularly its physiological functions in biotic and abiotic stress responses. Besides direct chemical reactions, nitric oxide (NO) and hydrogen peroxide (H 2 O 2 ) have complex relationships with H 2 S in plant signaling, both of which mediate protein post-translational modification (PTM) to attack the cysteine residues. We also discuss recent progress in the research on the three types of PTMs and their biological functions in plants. Finally, we propose the relevant issues that need to be addressed in the future research. Graphic abstract Supplementary Information The online version contains supplementary material available at 10.1007/s42994-021-00035-4.

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Section: H 2 S Contributes To Plant Growth and Devmentioning

confidence: 99%

Hydrogen sulfide (H2S) signaling in plant development and stress responses

et al. 2021

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“…The dark-adapted leaves were used to determine the transient chlorophyll fluorescence and 820 nm reflection with an integral multifunctional plant efficiency analyzer (M-PEA, Hansatech, King's Lynn, Norfolk, UK) as described by Liu et al (2020). The parameters were calculated as follows (Chen et al, 2016): relatively variable fluorescence at time t (V t ) = (F t -F 0 )/(F m -F 0 ), V t = V t -V t(control) ; the performance index on the absorption basis (PI ABS ) = RC/ABS × [φ P0 /(1 φ P0 )]×[ψ 0 /(1ψ 0 )]; the efficiency of an electron moving beyond Q A (ψ 0 ) = ET/TR =1 -V J ; and the quantum for heat dissipation (φ D0 ) = F 0 /F m .…”

Section: Determination Of Chlorophyll Fluorescencesmentioning

confidence: 99%

“…Step J (2 ms) is a specific sign of limited electron transport for Q A to Q B and D1 protein damage (Liu et al, 2020). The V t curve showed that MT and SNP significantly decreased the amplitude of step J relative to H 2 O treatment.…”

Section: The Role Of No In Mt-induced Photoprotectionmentioning

confidence: 99%

Nitric Oxide Functions as a Downstream Signal for Melatonin-Induced Cold Tolerance in Cucumber Seedlings

Feng

Lu-jie

et al. 2021

Front. Plant Sci.

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Melatonin (MT) and nitric oxide (NO) are two multifunctional signaling molecules that are involved in the response of plants to abiotic stresses. However, how MT and NO synergize in response to cold stress affecting plants is still not clear. In this study, we found that endogenous MT accumulation under cold stress was positively correlated with cold tolerance in different varieties of cucumber seedlings. The data presented here also provide evidence that endogenous NO is involved in the response to cold stress. About 100 μM MT significantly increased the nitrate reductase (NR) activity, NR-relative messenger RNA (mRNA) expression, and endogenous NO accumulation in cucumber seedlings. However, 75 μM sodium nitroprusside (SNP, a NO donor) showed no significant effect on the relative mRNA expression of tryptophan decarboxylase (TDC), tryptamine-5-hydroxylase (T5H), serotonin-N-acetyltransferase (SNAT), or acetylserotonin O-methyltransferase (ASMT), the key genes for MT synthesis and endogenous MT levels. Compared with H2O treatment, both MT and SNP decreased electrolyte leakage (EL), malondialdehyde (MDA), and reactive oxygen species (ROS) accumulation by activating the antioxidant system and consequently mitigated cold damage in cucumber seedlings. MT and SNP also enhanced photosynthetic carbon assimilation, which was mainly attributed to an increase in the activity and mRNA expression of the key enzymes in the Calvin–Benson cycle. Simultaneously, MT- and SNP-induced photoprotection for both photosystem II (PSII) and photosystem I (PSI) in cucumber seedlings, by stimulating the PsbA (D1) protein repair pathway and ferredoxin-mediated NADP+ photoreduction, respectively. Moreover, exogenous MT and SNP markedly upregulated the expression of chilling response genes, such as inducer of CBF expression (ICE1), C-repeat-binding factor (CBF1), and cold-responsive (COR47). MT-induced cold tolerance was suppressed by 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO, a specific scavenger of NO). However, p-chlorophenylalanine (p-CPA, a MT synthesis inhibitor) did not affect NO-induced cold tolerance. Thus, novel results suggest that NO acts as a downstream signal in the MT-induced plant tolerance to cold stress.

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“…Contudo, isso acarreta em uma menor absorção de CO2, contribuindo para menor crescimento da planta, proporcionando menor acúmulo de biomassa, menor assimilação de CO2, desencadeando redução na velocidade do Ciclo de Calvin, acarretando em excesso de elétrons advindos da parte fotoquímica da fotossíntese, podendo resultar na produção de espécies reativas de oxigênio (EROs) (Silva et al, 2010;Liu et al, 2020).…”

Section: Introductionunclassified

Inter-relação de técnica de manejo de água e solo aplicadas a cultura do milheto: uma revisão

Silva

Jardim

Souza

et al. 2020

RSD

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Agriculture is facing a significant challenge worldwide due to the scarcity of water resources. The water unavailability encouraged several studies on wastewater in agriculture. Among the types of wastewater, greywater can be cited as a more viable and safe alternative, as they have a lower microbial load. Besides, for greater efficiency of water resources, the use of wastewater in agriculture may be associated with other agricultural practices, such as the reduction of irrigation depths, the use of plant species tolerant to water deficit (such as millet cultivation) and balanced nutritional management value provided by organic fertilization. Most of the information about millet cultivation techniques are essential for success in areas with low water availability, such as the Brazilian semiarid region. Thus, this review aims to present alternative management techniques (water reuse, deficit irrigation, and organic fertilization) that used in association with the millet culture (Pennisetum glaucum (L.) R. Br.) aiming for an increase in productivity with efficient use of water. Several types of research were carried out in databases (ScienceDirect, Scopus, Mendeley, and Google Scholar) without language restriction, with the literature of significant relevance in Agricultural Sciences. The association of reduced irrigation volumes with organic fertilization is an alternative that improves the efficiency of water use in millet and, consequently, its production during the drought periods.

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Hydrogen peroxide is involved in hydrogen sulfide-induced carbon assimilation and photoprotection in cucumber seedlings

Cited by 33 publications

References 48 publications

Hydrogen sulfide (H2S) signaling in plant development and stress responses

Hydrogen sulfide (H2S) signaling in plant development and stress responses

Nitric Oxide Functions as a Downstream Signal for Melatonin-Induced Cold Tolerance in Cucumber Seedlings

Inter-relação de técnica de manejo de água e solo aplicadas a cultura do milheto: uma revisão

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