Jasmonic acid regulates plant development and orchestrates stress response during tough times

Hewedy, Omar A.; Elsheery, Nabil I.; Karkour, Ali M.; Arafa, Ramadan A.; Mahmoud, Ghada Abd‐Elmonsef; Hussein, Walaa E.; Mansour, Abdelaziz; Amin, Dina; Allakhverdiev, Suleyman I.; Živčák, Marek; Brestič, Marián

doi:10.1016/j.envexpbot.2023.105260

Cited by 49 publications

(19 citation statements)

References 174 publications

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“…Analysis of gene expression changes indicated that MeJA treatment elicited a robust defense response in A. syriaca. Across all six tissue types, 18 genes associated with jasmonic acid biosynthesis and signaling were consistently upregulated upon MeJA treatment (Figure 8 and Table S3) (Ruan et al, 2019; Li et al, 2022; Hewedy et al, 2023). These genes included five JAZ (jasmonate-ZIM domain) genes, which play a crucial role in the jasmonate signaling cascade, as well as ACOX1 (acyl-coezyme A oxidase 1), AOC (allene oxide cyclase), AOS (allene oxide synthase), two LOX (linoleate 13S-lipoxygenases) genes, KAT2 (3-ketoacyl-CoA thiolase 2), 4CLL5 (4-coumarate-CoA ligase-like 5), NINJA (novel interactor of JAZ), and MYC2 (a jasmonate-responsive transcription factor) (Figure 8 and Table S3).…”

Section: Resultsmentioning

confidence: 99%

Genome and tissue-specific transcriptome of the tropical milkweed (Asclepias curassavica)

Feng,

Zhang,

Powell

et al. 2024

Preprint

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Tropical milkweed (Asclepias curassavica) serves as a host plant for monarch butterflies (Danaus plexippus) and other insect herbivores that can tolerate the abundant cardiac glycosides that are characteristic of this species. Cardiac glycosides, along with additional specialized metabolites, also contribute to the ethnobotanical uses of A. curassavica. To facilitate further research on milkweed metabolism, we assembled the 241 Mbp genome of a fifth-generation inbred line of A. curassavica into 851 contigs, with an N50 of 2.4 Mbp. Scaffolding resulted in 97.9% of the assembly being anchored to 11 chromosomes, which are colinear with the previously assembled common milkweed (A. syriaca) genome. Assembly completeness evaluations showed that 97.9% of the BUSCO gene set is present in the A. curassavica assembly. The transcriptomes of six tissue types (young leaves, mature leaves, stems, flowers, buds, and roots), with and without methyl jasmonate treatment, showed both tissue-specific gene expression and induced expression of genes that may be involved in cardiac glycoside biosynthesis. Together, this genome sequence and transcriptome analysis provide important resources for further investigation of the ecological and medicinal uses of A. curassavica.

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Section: Resultsmentioning

confidence: 99%

Genome and tissue-specific transcriptome of the tropical milkweed (Asclepias curassavica)

Feng,

Zhang,

Powell

et al. 2024

Preprint

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“…JA in uences root growth by preventing the primary root, forming of lateral roots, regenerating the root, and reducing adventitious root formation 52 . As shown in Table 1, the application of SA in high doses (200 µM) caused the highest DW in shoots (30.3%) and roots (27.5%) of M population plants under the highest Ni concentration relative to the stressed plants under 400 µM Ni alone.…”

Section: Shoot and Root Dry Weightmentioning

confidence: 99%

“…It has been informed that the exogenous usage of JA at 0, 1, and 60 µM doses in sun ower seedlings growth media decreased the primary root development and reduced the number of lateral roots 55 . However, JA and SA act as essential signaling agents to adjust the defensive response in plants against abiotic stress, which can be due to the nature, exposure time, and intensity of stress in plants 29,52 . All values in the table are presented as mean ± SE (n = 3).…”

Section: Shoot and Root Dry Weightmentioning

confidence: 99%

The Salicylic Acid and Jasmonic Acid-mediated Different Fate of Nickel Phytoremediation in Two Populations of Alyssum inflatum Nyár

Modarresi,

Karimi,

Chaichi

et al. 2024

Preprint

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The availability of nickel (Ni) in root environment and its absorption by plants is a serious concern for plant products and human health. In stressful conditions, phytohormones such as salicylic acid (SA) and jasmonic acid (JA) play an essential role in modulating the physio-biochemical processes of plants. The current study was conducted to investigate Ni phytoremediation and accumulation potential in the presence of SA (0, 50 and 200 µM) and JA (0, 5 and 10 µM) in two populations of Alyssum inflatum, as a Ni-hyperaccumulator plant, under various Ni doses (0, 100 and 400 µM). Accordingly, by measuring Ni levels in shoot and root, values of bioaccumulation coefficient (BAC), biological concentration factor (BCF) and translocation factor (TF) were calculated to quantify Ni accumulation and translocation between plant organs. Furthermore, the amount of histidine (His), citric acid (CA) and malic acid (MA) as important chelators of Ni in shoots and roots were explored. The results displayed that plant mass and chlorophyll content declined in plants under high Ni concentration, while the amount of MA, CA and His increased. However, SA and JA moderated the harmful impact of Ni on physiological parameters and reduced organic acids and His contents in both populations. The values of phytoremediation indexes in both populations exposed to Ni (400 µM) were above one. In presence of the SA and JA, a decreasing trend was observed in these indexes. Overall, the results indicated that SA and JA could reduce phytoremediation potential in the two populations through different mechanisms.

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“…(ii) JA, its precursor 12-oxophytodienoic acid (OPDA), and the conjugated molecules methyl jasmonate (MeJA) and jasmonoyl-isoleucine (JA-Ile), known as jasmonates (JAs), are crucial for plant development and can act directly or indirectly in defense responses [ 21 , 22 ]. High concentrations of JAs are found on root tips, shoot apex, immature fruits and young leaves [ 23 ]. JAs are involved in physiological and molecular responses which protect plants against pathogenic attack, chilling, drought and high salinity.…”

Section: Phytohormone Modulate Plant Tolerance To Several Stressesmentioning

confidence: 99%

Efficient strategies for controlled release of nanoencapsulated phytohormones to improve plant stress tolerance

et al. 2023

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Climate change due to different human activities is causing adverse environmental conditions and uncontrolled extreme weather events. These harsh conditions are directly affecting the crop areas, and consequently, their yield (both in quantity and quality) is often impaired. It is essential to seek new advanced technologies to allow plants to tolerate environmental stresses and maintain their normal growth and development. Treatments performed with exogenous phytohormones stand out because they mitigate the negative effects of stress and promote the growth rate of plants. However, the technical limitations in field application, the putative side effects, and the difficulty in determining the correct dose, limit their widespread use. Nanoencapsulated systems have attracted attention because they allow a controlled delivery of active compounds and for their protection with eco-friendly shell biomaterials. Encapsulation is in continuous evolution due to the development and improvement of new techniques economically affordable and environmentally friendly, as well as new biomaterials with high affinity to carry and coat bioactive compounds. Despite their potential as an efficient alternative to phytohormone treatments, encapsulation systems remain relatively unexplored to date. This review aims to emphasize the potential of phytohormone treatments as a means of enhancing plant stress tolerance, with a specific focus on the benefits that can be gained through the improved exogenous application of these treatments using encapsulation techniques. Moreover, the main encapsulation techniques, shell materials and recent work on plants treated with encapsulated phytohormones have been compiled.

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Jasmonic acid regulates plant development and orchestrates stress response during tough times

Cited by 49 publications

References 174 publications

Genome and tissue-specific transcriptome of the tropical milkweed (Asclepias curassavica)

Genome and tissue-specific transcriptome of the tropical milkweed (Asclepias curassavica)

The Salicylic Acid and Jasmonic Acid-mediated Different Fate of Nickel Phytoremediation in Two Populations of Alyssum inflatum Nyár

Efficient strategies for controlled release of nanoencapsulated phytohormones to improve plant stress tolerance

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