Jasmonic Acid in Plant Abiotic Stress Tolerance and Interaction with Abscisic Acid

Abstract

The phytohormone jasmonic acid (JA), a cyclopentane fatty acid, mediates plant responses to abiotic stresses. Abiotic stresses rapidly and dynamically affect JA metabolism and JA responses by upregulating the expression of genes involved in JA biosynthesis and signaling, indicating that JA has a crucial role in plant abiotic stress responses. The crucial role of JA has been demonstrated in many previous studies showing that JA response regulates various plant defense systems, such as removal of reactive oxygen species and accumulation of osmoprotectants. Furthermore, increasing evidence shows that plant tolerance to abiotic stresses is linked to the JA response, suggesting that abiotic stress tolerance can be improved by modulating JA responses. In this review, we briefly describe the JA biosynthetic and signaling pathways and summarize recent studies showing an essential role of JA in plant responses and tolerance to a variety of abiotic stresses, such as drought, cold, salt, and heavy metal stress. Additionally, we discuss JA crosstalk with another key stress hormone, abscisic acid, in plant abiotic stress responses.

Hormone biosynthesis and metabolism members of 2OGD superfamily are involved in berry development and respond to MeJA and ABA treatment of Vitis vinifera L

“…In summary, the response of most Vv2OGD-H genes to exogenous ABA coincided with the reported hormone interaction previously—ABA could promote the synthesis of SLs and JAs (or inhibits their degradation), and inhibit the degradation of GAs and SAs [ 26 – 28 , 37 ].…”

“…9 ), which may lead to less accumulation of GAs after ABA treatment. There has been much evidence that the crosstalk of ABA-JAs is synergistic, for example, the accumulation of JAs is accelerated after ABA treatment in Arabidopsis and rice [ 28 ]. In grape, JA metabolic gene VvJOX6 is significantly down-regulated with ABA application (Fig.…”

Transcriptome Analysis Reveals a Gene Expression Pattern That Contributes to Sugarcane Bud Propagation Induced by Indole-3-Butyric Acid

“…Similarly, another stress relating pathway (jasmonic acid) had 20 downregulated genes were found, while only four genes (At3g11180, At3g11180, SSL5, and NAC079) were upregulated. Jasmonic acid pathways played a decisive role in the defense management of plants against biotic and abiotic stresses ( Antico et al, 2012 ; Du et al, 2013 ; Sanches et al, 2017 ; Kim et al, 2021 ). As per the experiment, we used a healthy sugarcane bud and healthy soil with proper moisture for the bud sprouting that limited the stress-inducing factors.…”

Effects of Plant Hormones, Metal Ions, Salinity, Sugar, and Chemicals Pollution on Glucosinolate Biosynthesis in Cruciferous Plant

“…The JA and MeJA are the most commonly used elicitors for induction of GSL. JA plays an important role in sensing and transmitting signals ( Kim et al, 2021 ). JA regulation of GSL depends on the jasmonoyl- L -isoleucine-mediated COI1/JAZ/MYC2 pathways.…”

“…Under stress, JA content increases and isomerizes into JA-ILE, which promotes the interaction between COI1 and JAZ , leading to degradation of JAZ protease and release of MYC , and promotes the expression of JA-responsive genes. After MYC release, regulation of R2R3-MYB transcription factor expression ultimately activates the GSL synthesis gene ( Wasternack and Strnad, 2019 ; Kim et al, 2021 ). JA can be converted to the more volatile MeJA; MeJA also can be converted to JA by esterases; both JA and MeJA have been reported to function as transported signals that induce systemic wound responses ( Stratmann, 2003 ; Sun and Zhang, 2021 ).…”