Low concentrations of salicylic acid delay methyl jasmonate-induced leaf senescence by up-regulating nitric oxide synthase activity

Ji, Yingbin; Liu, Jian; Xing, Da

doi:10.1093/jxb/erw280

Cited by 48 publications

(36 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Evidence supports the interaction of NO with other plant hormones to loral senescence and fruit maturation [157]. Recently, Ji et al [158] demonstrated that SA treatment at low concentrations induced NOA1-dependent NO signaling and activated antioxidant defense to counteract MeJA-induced leaf senescence. NO plays a conceivable role to counteract the ABA-and jasmonate-induced senescence in rice by inhibiting H 2 O 2 accumulation and lipid peroxidation [159].…”

Section: Contrasting Reports Inmentioning

confidence: 83%

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Nawaz¹,

Shabbir²,

Shahbaz³

et al. 2017

Phytohormones - Signaling Mechanisms and Crosstalk in Plant Development and Stress Responses

View full text Add to dashboard Cite

Plants, being sessile, are concurrently exposed to various biotic and abiotic stresses. The perception of stress signals in plants involves a wide spectrum of signal transduction pathways that interact to induce tolerance against adverse environmental conditions. This functional overlapping among various stress signaling cascades also leads to the expression of genes that regulate biosynthesis or action of other hormones. Phytohormonal signals, activated by both developmental and environmental responses, play a crucial role to develop stress tolerance in plants. Nitric oxide (NO) is one of the major players in plant signaling networks. Emerging evidence supports that NO interplays with signaling pathways of auxins, gibberellins, abscisic acid, ethylene, jasmonic acid, brassinosteroids, and other plant hormones to control metabolism, growth, and development in plants. This chapter focuses on the current state of knowledge of cross talk between signaling pathways of NO and phytohormones in plants exposed to various abiotic stresses.

show abstract

Section: Contrasting Reports Inmentioning

confidence: 83%

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Nawaz¹,

Shabbir²,

Shahbaz³

et al. 2017

Phytohormones - Signaling Mechanisms and Crosstalk in Plant Development and Stress Responses

View full text Add to dashboard Cite

show abstract

“…Our results also suggest that genetic manipulation of RD1 and RD2 genes of the AP2/ERF family may enhance production of secondary metabolites resulting in improved drought stress tolerance (Mawlong et al, 2015). Epigenetic regulation of gene expression (Wang et al, 2016) under abiotic stresses (Kumar and Singh, 2016; Kumar et al, 2017) and signaling cascades (Bernsdorff et al, 2016; Ji et al, 2016) that regulate defense mechanisms remain to be elucidated. The present findings would facilitate unraveling the elicitor induced biochemical and molecular manifestations of drought tolerance in crop plants to improve the yield.…”

Section: Resultsmentioning

confidence: 99%

Elicitor-Induced Biochemical and Molecular Manifestations to Improve Drought Tolerance in Rice (Oryza sativa L.) through Seed-Priming

et al. 2017

View full text Add to dashboard Cite

Rice (Oryza sativa L.) is one of the major grain cereals of the Indian subcontinent which face water-deficit stress for their cultivation. Seed-priming has been reported to be a useful approach to complement stress responses in plants. In the present study, seed-priming with hormonal or chemical elicitor [viz. methyl jasmonate (MJ), salicylic acid (SA), paclobutrazol (PB)] showed significant increase in total phenolic content, antioxidant activity and expression of Rice Drought-responsive (RD1 and RD2) genes (of AP2/ERF family) in contrasting rice genotypes (Nagina-22, drought-tolerant and Pusa Sugandh-5, drought-sensitive) under drought stress. However, decrease in lipid peroxidation and protein oxidation was observed not only under the stress but also under control condition in the plants raised from primed seeds. Expression analyses of RD1 and RD2 genes showed upregulated expression in the plants raised from primed seeds under drought stress. Moreover, the RD2 gene and the drought-sensitive genotype showed better response than that of the RD1 gene and the drought-tolerant genotype in combating the effects of drought stress. Among the elicitors, MJ was found to be the most effective for seed-priming, followed by PB and SA. Growth and development of the plants raised from primed seeds were found to be better under control and drought stress conditions compared to that of the plants raised from unprimed seeds under the stress. The present study suggests that seed-priming could be one of the useful approaches to be explored toward the development of simple, cost-effective and farmer-friendly technology to enhance rice yield in rainfed areas.

show abstract

“…Additionally, S ‐acyltransferase‐associated NOA1 activity and the onset of leaf senescence occurred in an age‐dependent manner (Ji et al . ) involving a mechanism that is evolutionarily conserved between dicots and monocots (Zhao et al . ).…”

Section: Discussionmentioning

confidence: 99%

The dependence of leaf senescence on the balance between 1‐aminocyclopropane‐1‐carboxylate acid synthase 1 (ACS1)‐catalysed ACC generation and nitric oxide‐associated 1 (NOS1)‐dependent NO accumulation in Arabidopsis

Jia

Zhang

et al. 2019

Plant Biol J

View full text Add to dashboard Cite

Ethylene and nitric oxide (NO) act as endogenous regulators during leaf senescence.Levels of ethylene or its precursor 1-aminocyclopropane-1-carboxylate acid (ACC) depend on the activity of ACC synthases (ACS), and NO production is controlled by NO-associated 1 (NOA1). However, the integration mechanisms of ACS and NOA1 activity still need to be explored during leaf senescence.• Here, using experimental techniques, such as physiological and molecular detection, liquid chromatography-tandem mass spectrometry and fluorescence measurement, we investigated the relevant mechanisms.• Our observations showed that the loss-of-function acs1-1 mutant ameliorated age-or dark-induced leaf senescence syndrome, such as yellowing and loss of chlorophyll, that acs1-1 reduced ACC accumulation mainly in mature leaves and that acs1-1-promoted NOA1 expression and NO accumulation mainly in juvenile leaves, when compared with the wild type (WT). But the leaf senescence promoted by the NO-deficient noa1 mutant was not involved in ACS1 expression. There was a similar sharp reduction of ACS1 and NOA1 expression with the increase in WT leaf age, and this inflection point appeared in mature leaves and coincided with the onset of leaf senescence.• These findings suggest that NOA1-dependent NO accumulation blocked the ACS1induced onset of leaf senescence, and that ACS1 activity corresponds to the onset of leaf senescence in Arabidopsis.

show abstract

Low concentrations of salicylic acid delay methyl jasmonate-induced leaf senescence by up-regulating nitric oxide synthase activity

Cited by 48 publications

References 81 publications

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Elicitor-Induced Biochemical and Molecular Manifestations to Improve Drought Tolerance in Rice (Oryza sativa L.) through Seed-Priming

The dependence of leaf senescence on the balance between 1‐aminocyclopropane‐1‐carboxylate acid synthase 1 (ACS1)‐catalysed ACC generation and nitric oxide‐associated 1 (NOS1)‐dependent NO accumulation in Arabidopsis

Contact Info

Product

Resources

About