Genome‐wide identification of heat shock transcription factor families in perennial ryegrass highlights the role of <scp><i>LpHSFC2b</i></scp> in heat stress response

Sun, Tianxiao; Wang, Weiliang; Hu, Xianmei; Fang, Zhengfu; Wang, Yanping; Lin, Xinghua; Chan, Zhulong

doi:10.1111/ppl.13828

Cited by 9 publications

(2 citation statements)

References 45 publications

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“…Furthermore, approximately 60% of the LcHsf promoters contain drought-inducible and low-temperature-responsive elements. These conclusions are similar to the findings of cis -acting regulatory elements on Hsfs family promoters in perennial ryegrass ( Lolium perenne ), common bean ( Phaseolus vulgaris ), and Tartary buckwheat ( Fagopyrum tataricum ) [ 15 , 43 , 44 ]. The ryegrass Hsf promoters also contain the same types of cis -elements, and five LpHsfs showed significantly differential expression patterns under various abiotic stresses [ 43 ].…”

Section: Discussionsupporting

confidence: 88%

“…These conclusions are similar to the findings of cis -acting regulatory elements on Hsfs family promoters in perennial ryegrass ( Lolium perenne ), common bean ( Phaseolus vulgaris ), and Tartary buckwheat ( Fagopyrum tataricum ) [ 15 , 43 , 44 ]. The ryegrass Hsf promoters also contain the same types of cis -elements, and five LpHsfs showed significantly differential expression patterns under various abiotic stresses [ 43 ]. A. thaliana HsfA8 , HsfB2a , HsfB2b , and HsfC1 are all responsive to abscisic acid treatment [ 23 , 25 , 45 , 46 , 47 ].…”

Section: Discussionsupporting

confidence: 88%

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Genome-Wide Analysis of the Liriodendron chinense Hsf Gene Family under Abiotic Stress and Characterization of the LcHsfA2a Gene

Yang,

Yin,

Zhu

et al. 2024

IJMS

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Heat shock factors (Hsfs) play a crucial role in plant defense processes. However, the distribution and functional characteristics of Hsf genes in the relict plant Liriodendron chinense are still unclear. In this study, a total of 19 LcHsfs were identified and divided into three separate subgroups, comprising 10 LcHsfA, 7 LcHsfB, and 2 LcHsfC genes, respectively, based on their phylogenetic tree and the presence/absence of conserved protein domains. Whole-genome duplication and segmental duplication led to an expansion of the LhHsf gene family. The promoters of LcHsf genes are enriched for different types of cis-acting elements, including hormone responsive and abiotic-stress-responsive elements. The expression of LcHsfA3, LcHsfA4b, LcHsfA5, LcHsfB1b, and LcHsfB2b increased significantly as a result of both cold and drought treatments. LcHsfA2a, LcHsfA2b, and LcHsfA7 act as important genes whose expression levels correlate strongly with the expression of the LcHsp70, LcHsp110, and LcAPX genes under heat stress. In addition, we found that transiently transformed 35S:LcHsfA2a seedlings showed significantly lower levels of hydrogen peroxide (H2O2) after heat stress and showed a stronger thermotolerance. This study sheds light on the possible functions of LcHsf genes under abiotic stress and identifies potentially useful genes to target for molecular breeding, in order to develop more stress-resistant varieties.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 88%

Genome-Wide Analysis of the Liriodendron chinense Hsf Gene Family under Abiotic Stress and Characterization of the LcHsfA2a Gene

Yang,

Yin,

Zhu

et al. 2024

IJMS

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Research advances in molecular mechanisms regulating heat tolerance in cool‐season turfgrasses

Rossi,

Huang

2024

Crop Science

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Cool‐season turfgrasses widely used on golf courses, athletic fields, and other landscapes are environmentally and economically important, but they are functionally and aesthetically damaged under prolonged exposure to high temperatures because of their sensitivity to heat stress. Because the consequences of climate change include elevated global temperatures, it is necessary to understand mechanisms underlying heat tolerance in cool‐season turfgrasses to improve heat tolerance and maintain high‐quality turf during the summer, when heat stress is most severe. This paper identifies major metabolic pathways associated with genes differentially expressed in heat‐tolerant cultivars or species of different turfgrasses by overviewing research from studies using comparative transcriptomics, proteomics, and biotechnological approaches and provides insight into progress toward elucidating the genetic and molecular factors regulating heat tolerance in cool‐season turfgrasses. Key molecular factors and genes associated with heat tolerance in cool‐season turfgrasses include those in the following cellular and metabolic processes or pathways: (1) cell cycle and DNA synthesis, replication, stability, and binding factors; (2) heat shock proteins for stress protection and protease enzymes controlling protein degradation or turnover; (3) carbohydrate metabolism for chloroplast development, chlorophyll degradation enzymes regulating the stay‐green phenotype, photochemical efficiency, carboxylation, and cytochrome respiratory activities; (4) activation of antioxidant metabolism for oxidation protection; (5) modulation of lipid saturation and composition to maintain cellular membrane integrity; and (6) upregulation of secondary metabolism for stress defense. Understanding how these regulatory mechanisms cohesively operate during heat stress will facilitate the development of cool‐season turfgrass germplasm with greater heat tolerance through breeding and biotechnological methods.

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Genome-wide identification and analysis of the HD-Zip transcription factors in perennial ryegrass highlight LpHOX22 and LpHOX24 as negative regulators of osmotic and heat stresses

Yang,

Zhang,

Fang

et al. 2024

Environmental and Experimental Botany

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Genome‐wide identification of heat shock transcription factor families in perennial ryegrass highlights the role of LpHSFC2b in heat stress response

Cited by 9 publications

References 45 publications

Genome-Wide Analysis of the Liriodendron chinense Hsf Gene Family under Abiotic Stress and Characterization of the LcHsfA2a Gene

Genome-Wide Analysis of the Liriodendron chinense Hsf Gene Family under Abiotic Stress and Characterization of the LcHsfA2a Gene

Research advances in molecular mechanisms regulating heat tolerance in cool‐season turfgrasses

Genome-wide identification and analysis of the HD-Zip transcription factors in perennial ryegrass highlight LpHOX22 and LpHOX24 as negative regulators of osmotic and heat stresses

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