Pe<scp>STZ</scp>1, a C2H2‐type zinc finger transcription factor from <i>Populus euphratica</i>, enhances freezing tolerance through modulation of <scp>ROS</scp> scavenging by directly regulating <i>Pe<scp>APX</scp>2</i>

He, Fang; Li, Huiguang; Wang, Jingjing; Su, Yanyan; Wang, Hou-Ling; Feng, Chao; Yang, Yanli; Niu, Meng-Xue; Liu, Chao; Yin, Weilun; Xia, Xinli

doi:10.1111/pbi.13130

Cited by 98 publications

(59 citation statements)

References 77 publications

(187 reference statements)

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“…In the initial stage of the AsA-GSH cycle, APX scavenges H 2 O 2 [ 114 ]. Previously, it has been described that APX can be positively modulated by H 2 S through persufidation [ 115 ].…”

Section: Discussionmentioning

confidence: 99%

Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

2020

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The aim of this study is to assess the role of L-cysteine desulfhydrase (L-DES) and endogenous hydrogen sulfide (H2S) in glutathione (GSH)-induced tolerance to salinity stress (SS) in sweet pepper (Capsicum annuum L.). Two weeks after germination, before initiating SS, half of the pepper seedlings were retained for 12 h in a liquid solution containing H2S scavenger, hypotaurine (HT), or the L-DES inhibitor DL-propargylglycine (PAG). The seedlings were then exposed for three weeks to control or SS (100 mmol L−1 NaCl) and supplemented with or without GSH or GSH+NaHS (sodium hydrosulfide, H2S donor). Salinity suppressed dry biomass, leaf water potential, chlorophyll contents, maximum quantum efficiency, ascorbate, and the activities of dehydroascorbate reductase, monodehydroascorbate reductase, and glyoxalase II in plants. Contrarily, it enhanced the accumulation of hydrogen peroxide, malondialdehyde, methylglyoxal, electrolyte leakage, proline, GSH, the activities of glutathione reductase, peroxidase, catalase, superoxide dismutase, ascorbate peroxidase, glyoxalase I, and L-DES, as well as endogenous H2S content. Salinity enhanced leaf Na+ but reduced K+; however, the reverse was true with GSH application. Overall, the treatments, GSH and GSH+NaHS, effectively reversed the oxidative stress and upregulated salt tolerance in pepper plants by controlling the activities of the AsA-GSH and glyoxalase-system-related enzymes as well as the levels of osmolytes.

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“…In the initial stage of the AsA-GSH cycle, APX scavenges H 2 O 2 [ 114 ]. Previously, it has been described that APX can be positively modulated by H 2 S through persufidation [ 115 ].…”

Section: Discussionmentioning

confidence: 99%

Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

2020

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“…In addition, hydrogen peroxide (H 2 O 2 ), superoxide anion (O 2− ), and hydroxyl radical (HO•) [25][26][27][28][29][30] as ROS signals can activate redox-responsive proteins, such as protein kinases and transcription factors, such as MAPK cascade [10], and activate of ZAT12 [31]. He et al [32] found that PeSTZ1 could enhance freezing tolerance through modulation of ROS scavenging by directly regulating PeAPX2 in Populus euphratica.…”

Section: Introductionmentioning

confidence: 99%

Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars

Zhou

Zhu

et al. 2020

BMC Plant Biol

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Background: Low temperature is a major factor influencing the growth and development of Chinese jujube (Ziziphus jujuba Mill.) in cold winter and spring. Little is known about the molecular mechanisms enabling jujube to cope with different freezing stress conditions. To elucidate the freezing-related molecular mechanism, we conducted comparative transcriptome analysis between 'Dongzao' (low freezing tolerance cultivar) and 'Jinsixiaozao' (high freezing tolerance cultivar) using RNA-Seq. Results: More than 20,000 genes were detected at chilling (4°C) and freezing (− 10°C, − 20°C, − 30°C and − 40°C) stress between the two cultivars. The numbers of differentially expressed genes (DEGs) between the two cultivars were 1831, 2030, 1993, 1845 and 2137 under the five treatments. Functional enrichment analysis suggested that the metabolic pathway, response to stimulus and catalytic activity were significantly enriched under stronger freezing stress. Among the DEGs, nine participated in the Ca 2+ signal pathway, thirty-two were identified to participate in sucrose metabolism, and others were identified to participate in the regulation of ROS, plant hormones and antifreeze proteins. In addition, important transcription factors (WRKY, AP2/ERF, NAC and bZIP) participating in freezing stress were activated under different degrees of freezing stress. Conclusions: Our research first provides a more comprehensive understanding of DEGs involved in freezing stress at the transcriptome level in two Z. jujuba cultivars with different freezing tolerances. These results may help to elucidate the molecular mechanism of freezing tolerance in jujube and also provides new insights and candidate genes for genetically enhancing freezing stress tolerance.

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“…Temperature is an important abiotic factor affecting plant physiological processes [2]. Plants can endure or resist low temperature stress by accumulating internal osmotic adjustment substances including proline, betaine, and soluble sugar [3], and increasing the synthesis of metabolism-related proteins, molecular chaperones, and antifreeze proteins [4,5]. Many quantitative trait loci (QTL) and genes were found to be involved in cold tolerance in plants [6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Chemical and Transcriptomic Analysis of Cuticle Lipids under Cold Stress in Thellungiella salsuginea

Tang

Yang

et al. 2019

IJMS

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Plant cuticle lipids form outer protective layers to resist environmental stresses; however, the relationship between cuticle properties and cold tolerance is unclear. Here, the extremophyte Thellungiella salsuginea was stressed under cold conditions (4 °C) and the cuticle of rosette leaves was examined in terms of epicuticular wax crystal morphology, chemical composition, and cuticle-associated gene expression. The results show that cold induced formation of distinct lamellas within the cuticle ultrastructure. Cold stress caused 14.58% and 12.04% increases in the amount of total waxes and cutin monomer per unit of leaf area, respectively, probably associated with the increase in total fatty acids. The transcriptomic analysis was performed on rosette leaves of Thellungiella exposed to cold for 24 h. We analyzed the expression of 72 genes putatively involved in cuticle lipid metabolism, some of which were validated by qRT-PCR (quantitative reverse transcription PCR) after both 24 h and one week of cold exposure. Most cuticle-associated genes exhibited higher expression levels under cold conditions, and some key genes increased more dramatically over the one week than after just 24 h, which could be associated with increased amounts of some cuticle components. These results demonstrate that the cuticle provides some aspects of cold adaptation in T. salsuginea.

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PeSTZ1, a C2H2‐type zinc finger transcription factor from Populus euphratica, enhances freezing tolerance through modulation of ROS scavenging by directly regulating PeAPX2

Cited by 98 publications

References 77 publications

Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars

Chemical and Transcriptomic Analysis of Cuticle Lipids under Cold Stress in Thellungiella salsuginea

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