Foliar-sprayed calcium-tryptophan mediated improvement in physio-biochemical attributes and nutritional profile of salt stressed Brassica oleracea var. italica

Haghighi, Maryam; Khosravi, Saaid; Sehar, Shafaque; Shamsi, Imran Haider

doi:10.1016/j.scienta.2022.111529

Cited by 12 publications

(5 citation statements)

References 61 publications

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“…The results of RT-qPCR assays showed that this should be attributed to the fact that exogenous calcium can up-regulate the key enzyme gene for ABA biosynthesis, AAO2/3, while down-regulating the key enzyme gene for ABA glycosylation, UGT71C5, under salt stress. Analogously, some previous studies have also shown that exogenous calcium can lead to further ABA accumulation under salt stress [56][57][58][59]. As a result of salt stress, ABA biosynthesis is increased in plants [60].…”

Section: Discussionsupporting

confidence: 54%

Multi-Omics Revealed Peanut Root Metabolism Regulated by Exogenous Calcium under Salt Stress

Dong,

Gao,

Bao

et al. 2023

Plants

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High salinity severely inhibits plant seedling root development and metabolism. Although plant salt tolerance can be improved by exogenous calcium supplementation, the metabolism molecular mechanisms involved remain unclear. In this study, we integrated three types of omics data (transcriptome, metabolome, and phytohormone absolute quantification) to analyze the metabolic profiles of peanut seedling roots as regulated by exogenous calcium under salt stress. (1) exogenous calcium supplementation enhanced the allocation of carbohydrates to the TCA cycle and plant cell wall biosynthesis rather than the shikimate pathway influenced by up-regulating the gene expression of antioxidant enzymes under salt stress; (2) exogenous calcium induced further ABA accumulation under salt stress by up-regulating the gene expression of ABA biosynthesis key enzymes AAO2 and AAO3 while down-regulating ABA glycosylation enzyme UGT71C5 expression; (3) exogenous calcium supplementation under salt stress restored the trans-zeatin absolute content to unstressed levels while inhibiting the root cis-zeatin biosynthesis.

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Section: Discussionsupporting

confidence: 54%

Multi-Omics Revealed Peanut Root Metabolism Regulated by Exogenous Calcium under Salt Stress

Dong,

Gao,

Bao

et al. 2023

Plants

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“…Upon abiotic stress, the suppression of auxin could be expected to activate the activity of nitrate reductase, and consequently facilitate the development of lateral roots as well as the absorption of nutrients (Jin et al, 2011; Singh et al, 2023; Zhao et al, 2011). On the contrary, plants usually repress the synthesis of auxin including l ‐Tryptophan to suppress their redundant growth, resulting in a precisely trade‐off between growth and abiotic stress tolerance (Clauw et al, 2016; Haghighi et al, 2023; Julkowska & Testerink, 2015). In the present work, the metabolites of the l ‐Tryptophan synthesis pathway showed a significant higher and lower relative content in CMA‐treated peanut roots compared with non‐treated plants under salinity stress in YH33 and YH169, respectively (Figure 8c).…”

Section: Discussionmentioning

confidence: 99%

Physiological, transcriptional and metabolomic evidence for arbuscular mycorrhizal fungi and Lactobacillus plantarum in peanut resistance to salinity stress

Si,

Lu,

Cao

et al. 2023

J Agronomy Crop Science

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Arbuscular mycorrhizal fungi (AMF) and Lactobacillus plantarum (LP) play pivotal roles in plant salinity resistance; however, difficulties are still exist in ascertaining their synergistic effects in counteracting legume soil salinity. Here, two peanut cultivars (salt‐tolerant and salt‐sensitive) were subjected to salinity stress, and the alleviation effects of combined microbial agent (CMA, inoculation with AMF + application with LP) on peanut salinity tolerance have been comprehensively characterized. CMA significantly enhanced the biomass production, leaf relative water content, increased the net photosynthetic rate, the maximal photochemical efficiency of photosystem II (PSII) and strengthened the antioxidant system, while dramatically decreased the reactive oxygen species (ROS) accumulation, lipid peroxidation and relative electrolyte conductivity under salinity conditions. Moreover, transcriptional and metabolomic evidence advocated that a subset of stress‐responsive pathways involved in plant growth (e.g. sucrose and starch), photosystem, antioxidant response, signal transduction (e.g. phytohormone and MAPK), osmotic homeostasis (e.g. total soluble sugar and amino acids) and root metabolism (e.g. asparagine and phenylpropanoid) have been regulated by CMA. Taken together, the physiological, transcriptional and metabolomic results indicate that CMA could induce peanut salinity tolerance through increasing plant growth performance, maintaining photosynthetic apparatus integrity, enhancing antioxidant system and regulating root metabolism. This study provides a promising CMA product and would be important for deepening the knowledge of the mechanisms regarding bacterial–fungal interactions.

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“…Strawberry ("Albion" cultivar) tends to enter endodormancy during late fall (October) in Ontario, Canada, where the leaves senesce, flowers wither and fruits cease to set. 4 The application of TRP, the precursor of indoleamines, is known to supplement the rhizosphere including the microbiome and improve crop growth and productivity in a plethora of plant species, [5][6][7][8][9][10][11][12][13] but during the cropping season. TRP is applied to plants through various ways, including soil application, foliar spray, and seed priming.…”

Section: Introductionmentioning

confidence: 99%

“…The application of TRP, the precursor of indoleamines, is known to supplement the rhizosphere including the microbiome and improve crop growth and productivity in a plethora of plant species, 5–13 but during the cropping season. TRP is applied to plants through various ways, including soil application, foliar spray, and seed priming.…”

Section: Introductionmentioning

confidence: 99%

“…Until the recent past, our research has focused on the indoleamines serotonin (SER) and MEL in underpinning the mechanisms of stress resilience during micropropagation and conservation ecology 15,16 . TRP has been studied in various tissue culture, 17,18 controlled environment chambers, 19 and greenhouse conditions 12 to improve growth and other vital plant processes, but its effects or fate in relation to stress resilience has been understudied 15 . TRP metabolizes into tryptamine (TRM) 20,21 under the influence of tryptophan decarboxylase ( TDC ) 22,23 that is later converted into SER 16 modulated by tryptamine 5‐hydroxylase ( T5H ) 20,21,24 .…”

Section: Introductionmentioning

confidence: 99%

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Stable indoleamines attenuate stress—A novel paradigm in tryptophan metabolism in plants

Ayyanath,

Shukla,

Sriskantharajah

et al. 2024

Journal of Pineal Research

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Stability of metabolites in harsh environments such as drought, temperature, and light suggest their untapped potential in processes the plants utilize in mitigation of abiotic and biotic stresses. Such metabolites could be nonspecific to microorganisms, plants, or animals. Many of the indoleamines are ubiquitous throughout species and have been shown to mitigate a wide range of stresses. We tested the role of indoleamine metabolites via exogenous application of the precursor tryptophan (TRP) on strawberry due to the short reproductive life cycle and its temperate traits. Seasonal responses appeared to be perturbed with exogenous application of TRP as a combination of foliar (3 mg/L) and ground drench (100 mg/L) or ground drench only (100 mg/L). The treatment yielded growth stimulatory responses besides mitigating stress, that is, short photoperiod and cold temperature. Plants preparing into dormancy reverted to produce green foliage and flowers that set fruit in unfavorable climate in the month of November where the untreated plants senesced. Analyses of the endogenous indoleamines in flowers and fruits of the treated plants indicated that the titers and ratios of the metabolites NAS, 2‐hydroxymelatonin, and N(1)‐acetyl‐N(2)‐formyl‐5‐methoxykynuramine assisted in the stress mitigation. The ASMT and M2H gene regulations emphasized the stability of intermediate metabolites of TRP. The TDC and T5H regulation explained the detection of a rare to find compound, 5‐hydroxytryptophan, in strawberry. This is the first report on detection of eight indoleamines in strawberry alongside the regulatory genes in the indoleamine pathway. Inclining climate crisis demands climate‐resilient plants in quick time and the indoleamine toolkit may offer the opportunity to develop simple and effective practices to manage stress tolerance in plants.

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Foliar-sprayed calcium-tryptophan mediated improvement in physio-biochemical attributes and nutritional profile of salt stressed Brassica oleracea var. italica

Cited by 12 publications

References 61 publications

Multi-Omics Revealed Peanut Root Metabolism Regulated by Exogenous Calcium under Salt Stress

Multi-Omics Revealed Peanut Root Metabolism Regulated by Exogenous Calcium under Salt Stress

Physiological, transcriptional and metabolomic evidence for arbuscular mycorrhizal fungi and Lactobacillus plantarum in peanut resistance to salinity stress

Stable indoleamines attenuate stress—A novel paradigm in tryptophan metabolism in plants

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