Genome–wide transcriptional response of contrasting genotypes of industrial crop castor to As(V) stress: Identification of genes and mechanisms associated with As(V) tolerance

Singh, Rohtas; Misra, A. N.; Sharma, Pallavi

doi:10.1016/j.indcrop.2022.114678

Cited by 4 publications

(2 citation statements)

References 79 publications

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“…Thus, it is important that the specific SOD activity is synchronized with the CAT activity since the product of O2 − dismutation by SOD is H 2 O 2 , and its accumulation is as detrimental as O 2 − . These effects of oxidative stress are related to several degenerative processes, such as photoinhibition, photooxidation in chloroplasts, inactivation of enzymes, degradation of photosynthetic pigments, peroxidation of membrane lipids, and DNA damage [56][57][58][59]. This synchrony could be observed in our study, especially for the plants carrying VuWRKY21 at 2 h, when higher SOD (mean value, 557.43%) and CAT (39.55%) activities were observed, besides lower H 2 O 2 content (29.51%), in the transgenic plants compared to the WT.…”

Section: Discussionmentioning

confidence: 99%

Expression of Cowpea VuWRKY21 and VuWRKY87 Genes in Arabidopsis thaliana Confers Plant Tolerance to Salt Stress

Crispim,

Souza,

Antunes

et al. 2023

DNA

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WRKY transcription factors play a pivotal role in regulating stress signaling pathways, including those associated with salt stress response. The present work characterized the effects of two WRKY genes from Vigna unguiculata, namely VuWRKY21 and VuWRKY87, on enhancing plant salinity tolerance. Under salt stress conditions, Arabidopsis lines expressing VuWRKY21 or VuWRKY87 showed elevated expression of genes participating in saline stress response pathways and reduced oxidative stress induced by reactive oxygen species (ROS). Among the salt-responsive genes in Arabidopsis, AtP5CS1, AtNHX1, AtRD29A, AtSOS3, AtSOS2, and AtSOS1 exhibited modulated expression levels after stress imposition. Furthermore, compared to wild-type plants, at most evaluated times, transgenic lines, on average, presented lower H2O2 content while displaying higher content of SOD (EC: 1.15.1.1) and CAT (EC: 1.11.1.6) at early stages of salt stress. These findings suggest that the expression of both VuWRKY genes in Arabidopsis, particularly VuWRKY21, activated genes involved in salinity tolerance.

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Section: Discussionmentioning

confidence: 99%

Expression of Cowpea VuWRKY21 and VuWRKY87 Genes in Arabidopsis thaliana Confers Plant Tolerance to Salt Stress

Crispim,

Souza,

Antunes

et al. 2023

DNA

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“…Therefore, transcriptome data have been effectively used in recent years to study plant growth and development. The gene expression profile of RNA sequencing reveals the gene expression patterns of different tissues in castor [14,15]. Currently, RNA-Seq is an effective technique for analyzing the mechanisms of castor development [16].…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis of Inflorescence Development at the Five-Leaf Stage in Castor (<i>Ricinus communis</i> L.)

Zhao,

Jiang,

Wen

et al. 2024

Phyton

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The yield of castor is influenced by the type of inflorescence and the proportion of female flowers. However, there are few studies on the genetic mechanism involved in the development and differentiation of castor inflorescences. In this study, we performed transcriptomic analyses of three different phenotypes of inflorescences at the five-leaf stage. In comparison to the MI (complete pistil without willow leaves), 290 and 89 differentially expressed genes (DEGs) were found in the SFI (complete pistil with willow leaves) and the BI (monoecious inflorescence), respectively. Among the DEGs, 104 and 88 were upregulated in the SFI and BI, respectively, compared to the MI. In addition, 186 DEGs and 1 DEG were downregulated in the SFI and BI compared to the MI. Moreover, we conducted GO and KEGG enrichment analyses of the DEGs. In comparison to the MI, the SFI and BI exhibited the enrichment of functional branches in DEGs, specifically in pollen wall assembly, pollen development, and cellular component assembly involved in morphogenesis. In our study, RADL5 showed low expression levels between SFI-vs.-MI types. In addition, we found that the expression of NAC in the SFI differed from that in MI and BI, and some genes related to hormonal signaling changed their expression levels during inflorescence differentiation. These results reveal the genetic mechanism of sex genotypes in castor, which will not only guide researchers in the breeding of castor but also provide a reference for genetic research on other flowering plants.

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Arsenic transport, detoxification, and recent technologies for mitigation: A systemic review

Yadav,

Ansari,

Gill

et al. 2024

Plant Physiology and Biochemistry

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Genome–wide transcriptional response of contrasting genotypes of industrial crop castor to As(V) stress: Identification of genes and mechanisms associated with As(V) tolerance

Cited by 4 publications

References 79 publications

Expression of Cowpea VuWRKY21 and VuWRKY87 Genes in Arabidopsis thaliana Confers Plant Tolerance to Salt Stress

Expression of Cowpea VuWRKY21 and VuWRKY87 Genes in Arabidopsis thaliana Confers Plant Tolerance to Salt Stress

Transcriptome Analysis of Inflorescence Development at the Five-Leaf Stage in Castor (<i>Ricinus communis</i> L.)

Arsenic transport, detoxification, and recent technologies for mitigation: A systemic review

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