Response of phytohormone mediated plant homeodomain (PHD) family to abiotic stress in upland cotton (Gossypium hirsutum spp.)

Wu, Huanhuan; Zheng, Lei; Qanmber, Ghulam; Guo, Mengzhen; Wang, Zhi; Yang, Zuoren

doi:10.1186/s12870-020-02787-5

Cited by 27 publications

(12 citation statements)

References 78 publications

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“…Therefore, their expression in different plant tissues has also attracted much attention. Studies have shown that the expression patterns of the PHD gene family in different species are concentrated in different tissue types ( Sun et al., 2017 ; Qin et al., 2019 ; Wu et al., 2021 ). Most of them have a high level of expression in reproductive organs, including rice ( Sun et al., 2017 ) and potato ( Qin et al., 2019 ).…”

Section: Discussionmentioning

confidence: 99%

PHD-finger family genes in wheat (Triticum aestivum L.): Evolutionary conservatism, functional diversification, and active expression in abiotic stress

et al. 2022

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Plant homeodomain (PHD) transcription factors (TFs) are a class of proteins with conserved Cys4-His-Cys3 domains that play important roles in plant growth and development and in response to abiotic stresses. Although characterization of PHDs has been performed in plants, little is known about their function in wheat (Triticum aestivum L.), especially under stress conditions. In the present study, 244 TaPHDs were identified in wheat using comparative genomics. We renamed them TaPHD1-244 based on their chromosomal distribution, and almost all PHD proteins were predicted to be located in the nucleus. According to the unrooted neighbor-joining phylogenetic tree, gene structure, and motif analyses, PHD genes were divided into four clades. A total of 149 TaPHD genes were assigned to arise from duplication events. Furthermore, 230 gene pairs came from wheat itself, and 119, 186, 168, 7, 2, and 6 gene pairs came from six other species (Hordeum vulgareto, Zea mays, Oryza sativa, Arabidopsis thaliana, Brassica rapa, and Gossypium raimondii, respectively). A total of 548 interacting protein branches were identified to be involved in the protein interaction network. Tissue-specific expression pattern analysis showed that TaPHDs were highly expressed in the stigma and ovary during flowering, suggesting that the TaPHD gene plays an active role in the reproductive growth of wheat. In addition, the qRT-PCR results further confirmed that these TaPHD genes are involved in the abiotic stress response of wheat. In conclusion, our study provides a theoretical basis for deciphering the molecular functions of TaPHDs, particularly in response to abiotic stress.

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Section: Discussionmentioning

confidence: 99%

PHD-finger family genes in wheat (Triticum aestivum L.): Evolutionary conservatism, functional diversification, and active expression in abiotic stress

et al. 2022

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“…Ethylene-responsive factors (ERFs) belong to a subfamily of the AP2/ERF superfamily which is involved in tomato response to the pathogens P. syringae pv. tomato ( He et al, 2001 ) and Stemphylium lycopersici ( Yang et al, 2021 ), among others.…”

Section: Discussionmentioning

confidence: 99%

Extracellular Fragmented Self-DNA Is Involved in Plant Responses to Biotic Stress

2021

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A growing body of evidence indicates that extracellular fragmented self-DNA (eDNA), by acting as a signaling molecule, triggers inhibitory effects on conspecific plants and functions as a damage-associated molecular pattern (DAMP). To evaluate early and late events in DAMP-dependent responses to eDNA, we extracted, fragmented, and applied the tomato (Solanum lycopersicum) eDNA to tomato leaves. Non-sonicated, intact self-DNA (intact DNA) was used as control. Early event analyses included the evaluation of plasma transmembrane potentials (Vm), cytosolic calcium variations (Ca2+cyt), the activity and subcellular localization of both voltage-gated and ligand-gated rectified K+ channels, and the reactive oxygen species (ROS) subcellular localization and quantification. Late events included RNA-Seq transcriptomic analysis and qPCR validation of gene expression of tomato leaves exposed to tomato eDNA. Application of eDNA induced a concentration-dependent Vm depolarization which was correlated to an increase in (Ca2+)cyt; this event was associated to the opening of K+ channels, with particular action on ligand-gated rectified K+ channels. Both eDNA-dependent (Ca2+)cyt and K+ increases were correlated to ROS production. In contrast, application of intact DNA produced no effects. The plant response to eDNA was the modulation of the expression of genes involved in plant–biotic interactions including pathogenesis-related proteins (PRPs), calcium-dependent protein kinases (CPK1), heat shock transcription factors (Hsf), heat shock proteins (Hsp), receptor-like kinases (RLKs), and ethylene-responsive factors (ERFs). Several genes involved in calcium signaling, ROS scavenging and ion homeostasis were also modulated by application of eDNA. Shared elements among the transcriptional response to eDNA and to biotic stress indicate that eDNA might be a common DAMP that triggers plant responses to pathogens and herbivores, particularly to those that intensive plant cell disruption or cell death. Our results suggest the intriguing hypothesis that some of the plant reactions to pathogens and herbivores might be due to DNA degradation, especially when associated to the plant cell disruption. Fragmented DNA would then become an important and powerful elicitor able to trigger early and late responses to biotic stress.

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“…GhPHDs genes are involved in regulating cotton growth and development, particularly ovule and fiber development. It has been noted that GhPHDs genes (especially GhPHD5, GhPHD80, and GhPHD88) respond well to various phyto-hormone signal transduction pathways and enhance cotton tolerance to different stresses, including salt, heat, and drought [145]. Wu et al [145] showed that phyto-hormones improved plant tolerance to abiotic stresses via GhPHD genes and their co-factors, but their regulatory mechanisms and interaction network still need to be further investigated.…”

Section: Role Of Ga and Sa Synthase Genes In Salt Stress Tolerancementioning

confidence: 99%

“…It has been noted that GhPHDs genes (especially GhPHD5, GhPHD80, and GhPHD88) respond well to various phyto-hormone signal transduction pathways and enhance cotton tolerance to different stresses, including salt, heat, and drought [145]. Wu et al [145] showed that phyto-hormones improved plant tolerance to abiotic stresses via GhPHD genes and their co-factors, but their regulatory mechanisms and interaction network still need to be further investigated. The expression GhPHD5 genes has been significantly increased after treatments of MeJA (Methyl jasmonate), IAA (Indole-3-acetic acid), and BL (brassinolide).…”

Section: Role Of Ga and Sa Synthase Genes In Salt Stress Tolerancementioning

confidence: 99%

Pivotal Role of Phytohormones and Their Responsive Genes in Plant Growth and Their Signaling and Transduction Pathway under Salt Stress in Cotton

Ahmad

Zhu

Zhou

et al. 2022

IJMS

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The presence of phyto-hormones in plants at relatively low concentrations plays an indispensable role in regulating crop growth and yield. Salt stress is one of the major abiotic stresses limiting cotton production. It has been reported that exogenous phyto-hormones are involved in various plant defense systems against salt stress. Recently, different studies revealed the pivotal performance of hormones in regulating cotton growth and yield. However, a comprehensive understanding of these exogenous hormones, which regulate cotton growth and yield under salt stress, is lacking. In this review, we focused on new advances in elucidating the roles of exogenous hormones (gibberellin (GA) and salicylic acid (SA)) and their signaling and transduction pathways and the cross-talk between GA and SA in regulating crop growth and development under salt stress. In this review, we not only focused on the role of phyto-hormones but also identified the roles of GA and SA responsive genes to salt stress. Our aim is to provide a comprehensive review of the performance of GA and SA and their responsive genes under salt stress, assisting in the further elucidation of the mechanism that plant hormones use to regulate growth and yield under salt stress.

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Response of phytohormone mediated plant homeodomain (PHD) family to abiotic stress in upland cotton (Gossypium hirsutum spp.)

Cited by 27 publications

References 78 publications

PHD-finger family genes in wheat (Triticum aestivum L.): Evolutionary conservatism, functional diversification, and active expression in abiotic stress

PHD-finger family genes in wheat (Triticum aestivum L.): Evolutionary conservatism, functional diversification, and active expression in abiotic stress

Extracellular Fragmented Self-DNA Is Involved in Plant Responses to Biotic Stress

Pivotal Role of Phytohormones and Their Responsive Genes in Plant Growth and Their Signaling and Transduction Pathway under Salt Stress in Cotton

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