Exogenous methyl jasmonate promotes salt stress‐induced growth inhibition and prioritizes defense response of <i>Nitraria tangutorum</i> Bobr.

Gao, Zheng; Gao, Shuai; Li, Pengxuan; Zhang, Yan; Ma, Binjie; Wang, Yingchun

doi:10.1111/ppl.13314

Cited by 28 publications

(19 citation statements)

References 67 publications

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“…It was observed that IBU can partially rescue the wound-induced decrease of growth, indicating that the wound-induced growth degradation is associated with the JA biosynthesis. This observation is consistent with the previous reports that exogenous JA can suppress the plant growth and repeated wounding had less effect on the growth of the mutant that is unable to synthesize JA, compared to the wild type plants [ 31 , 50 ]. We also noted that MYC mutation partially rescued the wound-induced decrease of leaf area and root length but had no significant effects on fresh and dry weight of the wounded seedlings.…”

Section: Discussionsupporting

confidence: 93%

The involvement of extracellular ATP in regulating the stunted growth of Arabidopsis plants by repeated wounding

et al. 2022

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Background Extracellular ATP (exATP) has been shown to act as a signal molecule for regulating growth, development, and responses of plants to the external environment. Results In this study, we investigated the possible involvement of exATP in regulating the stunted growth caused by repeated wounding. The present work showed that the repeated wounding caused the decreases in leaf area, fresh weight, dry weight, and root length of Arabidopsis seedlings, while the exATP level was enhanced by the repeated wounding. Repeated application of exogenous ATP had similar effects on the plant growth, as the repeated wounding. Through the comparison of p2k1-3 mutant (in which T-DNA disrupted the gene coding P2K1, as exATP receptor) and wide type (WT) plants, it was found that the mutation in P2K1 decreased the sensitivity of plant growth to the repeated wounding and exogenous ATP application. Further works showed that the ibuprofen (IBU, an inhibitor of jasmonate biosynthesis) partially rescued the wound-induced growth degradation. In comparison, the P2K1 mutation partly rescued the wound-induced growth degradation, whereas this mutation failed to do so in the wounded seedlings treated with IBU, indicating that the role of exATP in regulating the growth degradation by repeated wounding could be linked to the JA signaling pathway. Conclusions In conclusion, these results indicate that exATP could be a regulator for the stunted growth of plants by repeated wounding.

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Section: Discussionsupporting

confidence: 93%

The involvement of extracellular ATP in regulating the stunted growth of Arabidopsis plants by repeated wounding

et al. 2022

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“…Low-medium salt in parachinar local and all concentrations of salt in swat-84 reduced the shoot growth parameters alone and in combination with the exogenous foliar-JA application. In a recent study, it was demonstrated that exogenous MeJA inhibited the growth of seedlings of Nitraria tangutorum, resulting in shorter shoots, smaller internodes, and lower fresh weight [47]. Plants that are exposed to environmental stresses experience growth-defense tradeoffs, and JA is thought to be a key factor in these tradeoffs [14,15].…”

Section: Discussionmentioning

confidence: 99%

Effect of Jasmonic Acid Foliar Spray on the Morpho-Physiological Mechanism of Salt Stress Tolerance in Two Soybean Varieties (Glycine max L.)

Noor

Ullah

Saleem

et al. 2022

Plants

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Jasmonates (JAs) are lipid-derived compounds that function in plants as key signaling compounds during stressful conditions. This study aimed to examine the effects of exogenous fo-liar-JA application (100 μmol L−1) on the morpho-physiological response of two soybean varieties (parachinar-local and swat-84) grown under different NaCl regimes (0, 40, 80, and 120 mM). Results show that exogenous JA application alone and in combination with salt stress altered the growth and metabolism of both soybeans. For instance, they accumulated significant amounts of Na+ and Cl–, while their K+, Mg2+, Fe2+, Mn2+, B3+, and P3+ contents were low. Further, photosynthetic pigments Chl a and Chl b increased at low concentrations of salt and exogenous JA. Car decreased under both salt and exogenous JA as compared with untreated control. In addition, sugar, phenol, and protein content increased under both salt and exogenous JA application. In contrast, the exogenous JA application alleviated the negative impact of salt stress on the growth and metabolism of both soybeans. Further, the high concentrations of soluble protein and phenol in the leaves of both soybeans may contribute to their ability to adapt to salinity. However, molecular studies are necessary to understand the ameliorative role of exogenous JA in the growth and metabolism of salt-treated young seedlings in both soybean varieties.

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“…However, the combination of salinity and MeJA intensified plant growth inhibition and senescence [143]. Exogenous MeJA amplified salt stress-induced growth inhibition and prioritized defensive responses (e.g., antioxidant defense, osmotic adjustment, and ion homeostasis) in Nitraria tangutorum [144].…”

Section: Salt Stressmentioning

confidence: 99%

Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses

Wang

Mostafa

Zeng

et al. 2021

IJMS

238

108

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As sessile organisms, plants must tolerate various environmental stresses. Plant hormones play vital roles in plant responses to biotic and abiotic stresses. Among these hormones, jasmonic acid (JA) and its precursors and derivatives (jasmonates, JAs) play important roles in the mediation of plant responses and defenses to biotic and abiotic stresses and have received extensive research attention. Although some reviews of JAs are available, this review focuses on JAs in the regulation of plant stress responses, as well as JA synthesis, metabolism, and signaling pathways. We summarize recent progress in clarifying the functions and mechanisms of JAs in plant responses to abiotic stresses (drought, cold, salt, heat, and heavy metal toxicity) and biotic stresses (pathogen, insect, and herbivore). Meanwhile, the crosstalk of JA with various other plant hormones regulates the balance between plant growth and defense. Therefore, we review the crosstalk of JAs with other phytohormones, including auxin, gibberellic acid, salicylic acid, brassinosteroid, ethylene, and abscisic acid. Finally, we discuss current issues and future opportunities in research into JAs in plant stress responses.

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Exogenous methyl jasmonate promotes salt stress‐induced growth inhibition and prioritizes defense response of Nitraria tangutorum Bobr.

Cited by 28 publications

References 67 publications

The involvement of extracellular ATP in regulating the stunted growth of Arabidopsis plants by repeated wounding

The involvement of extracellular ATP in regulating the stunted growth of Arabidopsis plants by repeated wounding

Effect of Jasmonic Acid Foliar Spray on the Morpho-Physiological Mechanism of Salt Stress Tolerance in Two Soybean Varieties (Glycine max L.)

Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses

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