Mechanisms for Abscisic Acid Inhibition of Primary Root Growth

Sun, Li Rong; Wang, Yi Bin; He, Shi Bin; Hao, Fu Shun

doi:10.1080/15592324.2018.1500069

Cited by 77 publications

(55 citation statements)

References 48 publications

(101 reference statements)

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“…Furthermore, NAD kinase-2 (NADK2) mutation impaired ABA-induced stomatal closure and ABA inhibition of light-promoted stomatal opening. NADK2 disruption also impaired the ABA-stimulated accumulation of H 2 O 2 [167,168]. Elevation of SOD activity due to Se supplementation evolved in the quick transformation of the superoxide radicals into H 2 O 2 , which was produced at the chloroplast and mitochondrial electron transport chain.…”

Section: Se-mediated Improvement In the Upregulation Of Enzymatic Andmentioning

confidence: 99%

An Overview of Hazardous Impacts of Soil Salinity in Crops, Tolerance Mechanisms, and Amelioration through Selenium Supplementation

Kamran

Parveen

Ahmar

et al. 2019

IJMS

368

200

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Soil salinization is one of the major environmental stressors hampering the growth and yield of crops all over the world. A wide spectrum of physiological and biochemical alterations of plants are induced by salinity, which causes lowered water potential in the soil solution, ionic disequilibrium, specific ion effects, and a higher accumulation of reactive oxygen species (ROS). For many years, numerous investigations have been made into salinity stresses and attempts to minimize the losses of plant productivity, including the effects of phytohormones, osmoprotectants, antioxidants, polyamines, and trace elements. One of the protectants, selenium (Se), has been found to be effective in improving growth and inducing tolerance against excessive soil salinity. However, the in-depth mechanisms of Se-induced salinity tolerance are still unclear. This review refines the knowledge involved in Se-mediated improvements of plant growth when subjected to salinity and suggests future perspectives as well as several research limitations in this field.

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Section: Se-mediated Improvement In the Upregulation Of Enzymatic Andmentioning

confidence: 99%

An Overview of Hazardous Impacts of Soil Salinity in Crops, Tolerance Mechanisms, and Amelioration through Selenium Supplementation

Kamran

Parveen

Ahmar

et al. 2019

IJMS

368

200

View full text Add to dashboard Cite

show abstract

“…Root elongation relies on a combination of cell division and cell elongation. Both auxin [78] and ABA [79] play integral roles in the regulation of root elongation. For a review on the molecular mechanisms underlying root elongation, please see [80].…”

Section: Auxin-aba Interactions In Root Elongationmentioning

confidence: 99%

Auxin-Abscisic Acid Interactions in Plant Growth and Development

2020

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Plant hormones regulate many aspects of plant growth, development, and response to biotic and abiotic stress. Much research has gone into our understanding of individual plant hormones, focusing primarily on their mechanisms of action and the processes that they regulate. However, recent research has begun to focus on a more complex problem; how various plant hormones work together to regulate growth and developmental processes. In this review, we focus on two phytohormones, abscisic acid (ABA) and auxin. We begin with brief overviews of the hormones individually, followed by in depth analyses of interactions between auxin and ABA, focusing on interactions in individual tissues and how these interactions are occurring where possible. Finally, we end with a brief discussion and future prospects for the field.

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“…These TF genes likely play a crucial role in the regulation of root development and secondary metabolic processes in hexaploid S. canadensis, and the specific functions of the above TF genes in S. canadensis need further exploration. Plant hormones contribute to plant growth and development and some secondary metabolism-related gene regulation; for instance, jasmonic acid regulates terpenoid and flavonoid biosynthesis in plants [62], GA play multiple roles in plant growth and development processes [63], ABA modulates the growth of primary and lateral roots in Arabidopsis [64,65] and flavonoid synthesis in tomato [66]. Furthermore, MAPK signal transduction can combine with hormone signal response processes and develop into regulation network in root [67][68][69].…”

Section: The Expression Of Genes Involved In Regulation May Be Changementioning

confidence: 99%

Metabolome and Transcriptome Analysis of Hexaploid Solidago canadensis Roots Reveals its Invasive Capacity Related to Polyploidy

Chen

et al. 2020

Genes

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Polyploid plants are more often invasive species than their diploid counterparts. As the invasiveness of a species is often linked to its production of allelopathic compounds, we hypothesize that differences in invasive ability between cytotypes may be due to their different ability to synthesize allelopathic metabolites. We test this using two cytotypes of Solidago canadensis as the model and use integrated metabolome and transcriptome data to resolve the question. Metabolome analysis identified 122 metabolites about flavonoids, phenylpropanoids and terpenoids, of which 57 were differentially accumulated between the two cytotypes. Transcriptome analysis showed that many differentially expressed genes (DEGs) were enriched in ‘biosynthesis of secondary metabolites’, ‘plant hormone signal transduction’, and ‘MAPK signaling’, covering most steps of plant allelopathic metabolite synthesis. Importantly, the differentially accumulated flavonoids, phenylpropanoids and terpenoids were closely correlated with related DEGs. Furthermore, 30 miRNAs were found to be negatively associated with putative targets, and they were thought to be involved in target gene expression regulation. These miRNAs probably play a vital role in the regulation of metabolite synthesis in hexaploid S. canadensis. The two cytotypes of S. canadensis differ in the allelopathic metabolite synthesis and this difference is associated with regulation of expression of a range of genes. These results suggest that changes in gene expression may underlying the increased invasive potential of the polyploidy.

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Mechanisms for Abscisic Acid Inhibition of Primary Root Growth

Cited by 77 publications

References 48 publications

An Overview of Hazardous Impacts of Soil Salinity in Crops, Tolerance Mechanisms, and Amelioration through Selenium Supplementation

An Overview of Hazardous Impacts of Soil Salinity in Crops, Tolerance Mechanisms, and Amelioration through Selenium Supplementation

Auxin-Abscisic Acid Interactions in Plant Growth and Development

Metabolome and Transcriptome Analysis of Hexaploid Solidago canadensis Roots Reveals its Invasive Capacity Related to Polyploidy

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