Advances on exogenous applications of brassinosteroids and their analogs to enhance plant tolerance to salinity: A review

Vázquez, Miriam Núñez; Guerrero, Yanelis Reyes; Noval, Walfredo Torres de la; González, Lisbel Martínez; Zullo, Marco António Teixeira

doi:10.21475/ajcs.19.13.01.p1404

Cited by 10 publications

(4 citation statements)

References 47 publications

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“…Plant response to an increased H 2 O 2 content is a rise in catalase activity in plant tissues. Brassinosteroids as hormones which help plant to survive under stress conditions stimulate activity of antioxidative enzymes such as superoxide dismutase (SOD) and catalase (CAT) [53][54][55]. Such dependence was found in both barberry cultivars, especially in cuttings treated with brassinosteroids: in cv.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Brassinosteroids on Rootting of Stem Cuttings in Two Barberry (Berberis thunbergii L.) Cultivars

2021

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Brassinosteroids are a group of over seventy steroid compounds whose discovery in lower and higher plant organisms created new possibilities of plant growth control. The aim of the work was to evaluate the effect of two brassinosteroids: brassinolide (BL) and 24-epibrassinolide (24epiBL) as compared to the auxin rooting enhancer indole-3-butyric acid (IBA), on the rooting of stem cuttings in two Thunberg’s barberry cultivars ‘Maria’ and ‘Red Rocket’. The cuttings were sprayed with water solutions of growth regulators: IBA (200 mg·L−1), 0.05% BL or 24epiBL, as well as with a combination of each of brassinosteroids with the auxin while the control cuttings were sprayed with water. In both cultivars brassinosteroids positively affected a degree of rooting and root length. Their application resulted in elevated contents of chlorophyll, total soluble sugars, free amino acids, hydrogen peroxide and catalase activity. Brassinosteroids were more effective when combined with the auxin than when used singly.

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Section: Discussionmentioning

confidence: 99%

The Effect of Brassinosteroids on Rootting of Stem Cuttings in Two Barberry (Berberis thunbergii L.) Cultivars

2021

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“…Cytokinins interacting with ethylene enhance cell division and alleviate abiotic stresses like salinity during germination (Chiwocha et al, 2005;Subbiah and Reddy, 2010;Peleg and Blumwald, 2011;Miransari and Smith, 2014). BRs, in conjunction with GAs and ethylene, improve seed resistance to abiotic stress, enhance embryo growth out of the seed, and reduce the effects of ABA (Bajguz and Hayat, 2009;Miransari and Smith, 2014;Procházka et al, 2015) and salt stress (Vázquez et al, 2019) during germination. JAs are signalling molecules for plant defence against osmotic stress caused by salt (Kazan and Manners, 2012;Nguyen et al, 2019).…”

Section: Seed Germination Process and Roles Of Hormonesmentioning

confidence: 99%

Salinity tolerance in barley during germination—homologs and potential genes

Mwando

Angessa

Han

et al. 2020

J. Zhejiang Univ. Sci. B

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Salinity affects more than 6% of the world's total land area, causing massive losses in crop yield. Salinity inhibits plant growth and development through osmotic and ionic stresses; however, some plants exhibit adaptations through osmotic regulation, exclusion, and translocation of accumulated Na + or Cl −. Currently, there are no practical, economically viable methods for managing salinity, so the best practice is to grow crops with improved tolerance. Germination is the stage in a plant's life cycle most adversely affected by salinity. Barley, the fourth most important cereal crop in the world, has outstanding salinity tolerance, relative to other cereal crops. Here, we review the genetics of salinity tolerance in barley during germination by summarizing reported quantitative trait loci (QTLs) and functional genes. The homologs of candidate genes for salinity tolerance in Arabidopsis, soybean, maize, wheat, and rice have been blasted and mapped on the barley reference genome. The genetic diversity of three reported functional gene families for salt tolerance during barley germination, namely dehydration-responsive element-binding (DREB) protein, somatic embryogenesis receptor-like kinase and aquaporin genes, is discussed. While all three gene families show great diversity in most plant species, the DREB gene family is more diverse in barley than in wheat and rice. Further to this review, a convenient method for screening for salinity tolerance at germination is needed, and the mechanisms of action of the genes involved in salt tolerance need to be identified, validated, and transferred to commercial cultivars for field production in saline soil.

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“…To increase the salt tolerance of a plant, it is necessary that the formation and scavenging of ROS must be regulated in the chloroplast (Miller et al, 2010). BRSs enhance the activities of various antioxidant enzymes that help the plant to diminish the harmful effect of accumulated ROS, which ultimately improve their stress tolerance efficiency (Vázquez et al, 2019). BL has been reported to mitigate the harmful effects of salinity stress in maize plants by improving the activity of antioxidant enzymes (El-Khallal et al, 2009).…”

Section: Effect Of Brss On Antioxidant Enzymes Under Salinity Stressmentioning

confidence: 99%

Role of Brassinosteroids in plants responses to salinity stress: A review

Vikram

Pooja

Sharma

et al. 2022

JANS

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Brassinosteroid emerges as an essential phytohormone that helps the plant to maintain plant growth and development. It also helps the plants grow well under adverse conditions along with normal conditions. In this review article, we have discussed the functional role of brassinosteroid (BRS) in plants under salinity stress conditions. Salinity stress is one of the most devastating abiotic stresses which adversely affect plant growth by disturbing their metabolic pathway. This article also comprises the occurrence, structure and signalling pathway of the brassinosteroid. Application of brassinosteroid improves the plant status under salinity by enhancing the antioxidant enzyme activity in plants. Moreover, we also reported the different growth parameters enhanced by brassinosteroid application in plants under salinity. BRSs also maintain plant growth through the regulation of expression of various genes whose products are involved in various biochemical and physiological processes. This review is based on the various aspects in much detail which are required to understand the proper mechanism of BRS, such as i) the role of BRS signaling pathways in providing tolerance to the plants, ii) changes due to the presence or absence of BRS in plants under stress conditions, iii) BRSs application on the regulation of different genes and transcriptional factor, iv) regulation in ion homeostasis, v) reduction of oxidative stress via different mechanisms under salinity stress. However, a lot of knowledge is required to understand the role of BRS in alleviating salinity stress and needs future research work on BRS with its different derivatives in the alleviation of salt stress.

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Advances on exogenous applications of brassinosteroids and their analogs to enhance plant tolerance to salinity: A review

Cited by 10 publications

References 47 publications

The Effect of Brassinosteroids on Rootting of Stem Cuttings in Two Barberry (Berberis thunbergii L.) Cultivars

The Effect of Brassinosteroids on Rootting of Stem Cuttings in Two Barberry (Berberis thunbergii L.) Cultivars

Salinity tolerance in barley during germination—homologs and potential genes

Role of Brassinosteroids in plants responses to salinity stress: A review

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