Jacalin domain-containing protein OsSalT interacts with OsDREB2A and OsNAC1 to impart drought stress tolerance in planta

Sahid, Salman; Roy, Chandan; Shee, Dibyendu; Datta, R. K.; Paul, Soumitra

doi:10.1016/j.envexpbot.2020.104362

Cited by 9 publications

(5 citation statements)

References 64 publications

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“…The expression of the OsIAA1 gene is reduced under stress conditions. Additionally, OsSALT and OsMSD1 genes support HT and DS stress tolerance in the YNU genotype [79,80].…”

Section: Discussionmentioning

confidence: 97%

The Promising B−Type Response Regulator hst1 Gene Provides Multiple High Temperature and Drought Stress Tolerance in Rice

Lopes Hornai,

Aycan,

Mitsui

2024

IJMS

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High temperatures, drought, and salt stresses severely inhibit plant growth and production due to the effects of climate change. The Arabidopsis ARR1, ARR10, and ARR12 genes were identified as negative salt and drought stress regulators. However, in rice, the tolerance capacity of the hst1 gene, which is orthologous to the ARR1, ARR10, and ARR12 genes, to drought and multiple high temperature and drought stresses remains unknown. At the seedling and reproductive stages, we investigated the drought (DS) high temperature (HT) and multiple high temperature and drought stress (HT+DS) tolerance capacity of the YNU31−2−4 (YNU) genotype, which carries the hst1 gene, and its nearest genomic relative Sister Line (SL), which has a 99% identical genome without the hst1 gene. At the seedling stage, YNU demonstrated greater growth, photosynthesis, antioxidant enzyme activity, and decreased ROS accumulation under multiple HT+DS conditions. The YNU genotype also demonstrated improved yield potential and grain quality due to higher antioxidant enzyme activity and lower ROS generation throughout the reproductive stage under multiple HT+DS settings. Furthermore, for the first time, we discovered that the B−type response regulator hst1 gene controls ROS generation and antioxidant enzyme activities by regulating upstream and downstream genes to overcome yield reduction under multiple high temperatures and drought stress. This insight will help us to better understand the mechanisms of high temperature and drought stress tolerance in rice, as well as the evolution of tolerant crops that can survive increased salinity to provide food security during climate change.

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“…The expression of the OsIAA1 gene is reduced under stress conditions. Additionally, OsSALT and OsMSD1 genes support HT and DS stress tolerance in the YNU genotype [79,80].…”

Section: Discussionmentioning

confidence: 97%

The Promising B−Type Response Regulator hst1 Gene Provides Multiple High Temperature and Drought Stress Tolerance in Rice

Lopes Hornai,

Aycan,

Mitsui

2024

IJMS

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“…LIC and BZR1 act as antagonistic effects in response to high and low brassinosteroids, respectively, to balance the BR signal and control leaf bending in rice [38]. In the present study, we examined transcriptional changes in a number of ABA-and heat-, defense-, related genes that had positive effects on plant stress resistance (Figures 5 and 6) [39][40][41] It should be emphasized that under HS, not all of these genes were transcribed at lower levels in 10 −5 M ABA-treated seedlings than in 10 −12 M ABA-treated seedlings (Figures 5 and 6). The signaling pathways leading to opposite HS tolerance at different concentrations of exogenous ABA are complex and identifying their key regulatory genes can be challenging.…”

Section: Discussionmentioning

confidence: 99%

Exogenous Abscisic Acid Affects the Heat Tolerance of Rice Seedlings by Influencing the Accumulation of ROS

et al. 2023

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Heat stress (HS) has become one of the major abiotic stresses that severely constrain rice growth. Abscisic acid (ABA) plays an important role in plant development and stress response. However, the effect of different concentrations of exogenous ABA on HS tolerance in rice still needs to be further elucidated. Here, we found that high concentrations of exogenous ABA increased HS damage in seedlings, whereas 10−12 M ABA treatment increased fresh and dry weight under HS relative to mock seedlings. Our further data showed that, in response to HS, 10−5 M, ABA-treated seedlings exhibited a lower chlorophyll content, as well as transcript levels of chlorophyll biosynthesis and antioxidant genes, and increased the accumulation of reactive oxygen species (ROS). In addition, the transcript abundance of some heat-, defense-, and ABA-related genes was downregulated on 10−5 M ABA-treated seedlings under HS. In conclusion, high concentrations of exogenous ABA reduced the HS tolerance of rice seedlings, and this negative effect could be achieved by regulating the accumulation of ROS, chlorophyll biosynthesis, and the transcription levels of key genes in seedlings under HS.

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“…The potential functions of HvJRLs were predicted based on their functionally known homologs in the same subgroup (Figure 5). Numerous members in subgroups 1, 6, 7, 10, and 11 were involved in the response to biotic and abiotic stresses, such as pathogen resistance [16,21,49,50], response to hormones [26,27], salt tolerance [30,31,51], and drought tolerance [25]. The members of subgroup 1 might also be associated with beta-glucosidase aggregation [35,52], vernalization signaling, and spike development regulation [11,12].…”

Section: Evolutionary Analysis Of Jrl Gene Familymentioning

confidence: 99%

“…The above mentioned OsJAC1 is involved in defense against pathogen attacks [21]. In addition, some JRLs play roles in response to abiotic stresses, such as salt [22,23], drought [24,25], and hormones [12,26,27]. In recent years, many studies have showed that the JRL family genes play important roles in salt stress response, including Orysata and OsJRL40 in rice [28][29][30], HvHorcH in barley [31], a PeJRL in poplar (Populus euphratica) [32], and several TaJRLs in wheat [3].…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide and Transcriptome Analysis of Jacalin-Related Lectin Genes in Barley and the Functional Characterization of HvHorcH in Low-Nitrogen Tolerance in Arabidopsis

Quan,

Meng,

Xie

et al. 2023

IJMS

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The jacalin-related lectins (JRLs) are widely distributed in plants and are involved in plant development and multiple stress responses. However, the characteristics of the HvJRL gene family at the genome-wide level and the roles of JRLs in barley’s response to low-nitrogen (LN) stress have been rarely reported. In this study, 32 HvJRL genes were identified and unevenly distributed at both ends of the seven chromosomes in barley. HvJRL proteins generally exhibited low sequence similarity but shared conserved jacalin domains by multiple sequence analysis. These proteins were classified into seven subfamilies based on phylogenetic analysis, with a similar gene structure and conserved motifs in the same subfamily. The HvJRL promoters contained a large number of diverse cis-elements associated with hormonal response and stress regulation. Based on the phylogenetic relationships and functionally known JRL homologs, it was predicted that some HvJRLs have the potential to serve functions in multiple stress responses but not nutrition deficiency stress. Subsequently, nine differentially expressed genes (DEGs) encoding eight HvJRL proteins were identified in two barley genotypes with different LN tolerance by transcriptome analysis. Furthermore, 35S:HvHorcH transgenic Arabidopsis seedlings did enhance LN tolerance, which indicated that HvHorcH may be an important regulator of LN stress response (LNSR). The HvJRL DEGs identified herein could provide new candidate genes for LN tolerance studies.

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Jacalin domain-containing protein OsSalT interacts with OsDREB2A and OsNAC1 to impart drought stress tolerance in planta

Cited by 9 publications

References 64 publications

The Promising B−Type Response Regulator hst1 Gene Provides Multiple High Temperature and Drought Stress Tolerance in Rice

The Promising B−Type Response Regulator hst1 Gene Provides Multiple High Temperature and Drought Stress Tolerance in Rice

Exogenous Abscisic Acid Affects the Heat Tolerance of Rice Seedlings by Influencing the Accumulation of ROS

Genome-Wide and Transcriptome Analysis of Jacalin-Related Lectin Genes in Barley and the Functional Characterization of HvHorcH in Low-Nitrogen Tolerance in Arabidopsis

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