Molecular dynamics simulations illuminate the role of sequence context in the ELF3-PrD-based temperature sensing mechanism in plants DOI Open Access
R Lindsay,

Rafael Giordano Viegas,

Vitor B. P. Leite

и другие.

Опубликована: Ноя. 18, 2024

The evening complex (EC) is a tripartite DNA repressor and core component of the circadian clock that provides mechanism for temperature-responsive growth development many plants. ELF3, EC, disordered scaffolding protein blocks transcription genes at low temperature. At increased temperature EC binding disrupted ELF3 sequestered in reversible nuclear condensate, allowing to proceed. condensation driven by complexity prion-like domain (PrD), sensitivity response modulated length variable polyQ tract, with longer tract corresponding enhanced condensate formation hypocotyl Here, series computational studies evidence tracts promote temperature-sensitive helices flanking residues potential impacts stability under increasing REST2 simulations uncover heat-induced population condensation-prone conformations results from exposure ‘sticky’ aromatic breaking long-range contacts. Coarse-grained Martini reveal both sequence context modulate dependence cluster formation. Understanding molecular underlying ELF3-PrD plants has implications technologies including modular temperature-response elements heat-responsive design agricultural advances enable optimization crop yields allow thrive increasingly inhospitable environments.

Язык: Английский

In vitro reconstitution of temperature-dependent phosphorylation of DEHYDRATION-RESPONSIVE ELEMENT BINDING PROTEIN2A reveals the thermal sensing ability of Arabidopsis CASEIN KINASE 1. DOI
Hiroaki Fujii

Biochemical and Biophysical Research Communications, Год журнала: 2025, Номер unknown, С. 151516 - 151516

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

Molecular aspects of heat stress sensing in land plants DOI Creative Commons
Cristiane P. G. Calixto

The Plant Journal, Год журнала: 2025, Номер 121(6)

Опубликована: Март 1, 2025

SUMMARY Heat stress impacts all aspects of life, from evolution to global food security. Therefore, it becomes essential understand how plants respond heat stress, especially in the context climate change. The response (HSR) involves three main components: sensing, signal transduction, and cellular reprogramming. Here, I focus on sensing component. How can cells detect if is not a signalling particle? To answer this question, have looked at molecular definition stress. It be defined as any particular rise optimum growth temperature that leads higher‐than‐normal levels reactive species macromolecular damage biological membranes, proteins, nucleic acid polymers (DNA RNA). precisely these stress‐specific alterations are detected by sensors, upon which they would immediately trigger appropriate level HSR. In addition, work towards thermotolerance complemented second type response, here called homeostasis (CHR). Upon mild extreme changes, CHR triggered plant thermosensors, responsible for monitoring information. sensors thermosensors distinct types molecules, each with unique modes activation functions. While many recent reviews provide comprehensive overview there remains notable gap review literature regarding an in‐depth analysis sensors. attempt summarise our current knowledge involved triggering

Язык: Английский

Процитировано

0

Decoding plant thermosensors: mechanism of temperature perception and stress adaption DOI Creative Commons
Tongdan Zhu,

Xi Cheng,

Changzhi Li

и другие.

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Март 25, 2025

Global climate change, characterized by increased frequency and intensity of extreme temperature events, poses significant challenges to plant survival crop productivity. While considerable research has elucidated responses stress, the molecular mechanisms, particularly those involved in sensing, remain incompletely understood. Thermosensors plants play a crucial role translating signals into cellular responses, initiating downstream signaling cascades that govern adaptive processes. This review highlights recent advances identification classification thermosensors, exploring their physiological roles biochemical mechanisms which they sense changes. We also address thermosensor discovery discuss emerging strategies uncover novel thermosensory with implications for improving resilience stress face rapidly changing climate.

Язык: Английский

Процитировано

0

Temperature-sensing riboceptors DOI Creative Commons
Savani Anbalagan

RNA Biology, Год журнала: 2024, Номер 21(1), С. 1 - 6

Опубликована: Июль 17, 2024

Understanding how cells sense temperature is a fundamental question in biology and pivotal for the evolution of life. In numerous organisms, not only sensed but also generated due to cellular processes. Consequently, mechanisms governing sensation various organisms have been experimentally elucidated. Extending upon others' proposals demonstration protein- nucleic acid-based thermosensors, utilizing colonial India 'punkah-wallahs' analogy, I present my rationale necessity sensing every organelle cell. Finally, propose temperature-sensing riboceptors (ribonucleic acid receptors) integrate all RNA molecules (mRNA, non-coding RNA, so forth) capable triggering signaling event, which call as thermocrine signaling. This approach could enable identification cell almost organism, other classes ligands, including gaseous solutes, water.

Язык: Английский

Процитировано

2

RtHSFA9s of Rhodomyrtus tomentosa Positively Regulate Thermotolerance by Transcriptionally Activating RtHSFA2s and RtHSPs DOI Creative Commons
Huiguang Li,

Ling Yang,

Yujie Fang

и другие.

Life, Год журнала: 2024, Номер 14(12), С. 1591 - 1591

Опубликована: Дек. 2, 2024

Heat shock transcription factors (HSFs) are crucial components in heat stress response. However, the contribution of HSFs governing inherent thermotolerance Rhodomyrtus tomentosa has barely been investigated. We here compared roles RtHSFA9a, RtHSFA9b, and RtHSFA9c tolerance. These three genes results gene duplication events, but there exist vast variations their amino acid sequences. They all localized to nucleus. Arabidopsis thaliana plants with overexpressed RtHSFA9a outperformed wild-type plants, while over-accumulation RtHSFA9b had little impact on plant thermotolerance. By transiently overexpressing R. seedlings, mRNA abundance response genes, including RtHSFA2a, RtHSFA2b, RtHSP17.4, RtHSP21.8, RtHSP26.5, RtHSP70, were upregulated. Transactivation assays confirmed that regulatory divergences among these viz., highest activity regulating RtHSP70; can transcriptionally activate makes limited contributions accumulation RtHSP70. Our indicate RtHSFA9 make thermal adaption by positively RtHSP which provides novel insights into subfamily.

Язык: Английский

Процитировано

2

Leveraging a new thermosensor for heat-smart future agriculture DOI Creative Commons
Ali Raza,

Qamar U Zaman,

Zhangli Hu

и другие.

Plant Communications, Год журнала: 2024, Номер 5(9), С. 101007 - 101007

Опубликована: Июнь 22, 2024

Язык: Английский

Процитировано

1

Exploring abiotic stress resilience module for molecular design in rice DOI
Xiaoyu Guo,

Wei Luo,

Kang Chong

и другие.

Science Bulletin, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Процитировано

1

Molecular basis of polyglutamine-modulated ELF3 phase change in Arabidopsis temperature response DOI Creative Commons
Richard J. Lindsay,

Rafael Giordano Viegas,

Vitor B. P. Leite

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Март 16, 2023

Abstract The evening complex (EC) is a tripartite DNA repressor and core component of the circadian clock that provides mechanism for temperature-responsive growth development many plants. ELF3, EC, disordered scaffolding protein blocks transcription genes at low temperature. At increased temperature EC binding disrupted ELF3 sequestered in reversible nuclear condensate, allowing to proceed. condensation driven by complexity prion-like domain (PrD), sensitivity response modulated length variable polyQ tract, with longer tract corresponding enhanced condensate formation hypocotyl Here, series computational studies evidence tracts promote temperature-sensitive helices flanking residues potential impacts stability under increasing REST2 simulations uncover heat-induced population condensation-prone conformations results from exposure ‘sticky’ aromatic breaking long-range contacts. Coarse-grained Martini reveal both sequence context modulate dependence cluster formation. Understanding molecular underlying ELF3-PrD plants has implications technologies including modular temperature-response elements heat-responsive design agricultural advances enable optimization crop yields allow thrive increasingly inhospitable environments.

Язык: Английский

Процитировано

3

Molecular dynamics simulations illuminate the role of sequence context in the ELF3-PrD-based temperature sensing mechanism in plants DOI Creative Commons
Richard J. Lindsay, Rafael Giordano Viegas, Vitor B. P. Leite

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Авг. 10, 2024

Abstract The evening complex (EC) is a tripartite DNA repressor and core component of the circadian clock that provides mechanism for temperature-responsive growth development many plants. ELF3, EC, disordered scaffolding protein blocks transcription genes at low temperature. At increased temperature EC binding disrupted ELF3 sequestered in reversible nuclear condensate, allowing to proceed. condensation driven by complexity prion-like domain (PrD), sensitivity response modulated length variable polyQ tract, with longer tract corresponding enhanced condensate formation hypocotyl Here, series computational studies evidence tracts promote temperature-sensitive helices flanking residues potential impacts stability under increasing REST2 simulations uncover heat-induced population condensation-prone conformations results from exposure ‘sticky’ aromatic breaking long-range contacts. Coarse-grained Martini reveal both sequence context modulate dependence cluster formation. Understanding molecular underlying ELF3-PrD plants has implications technologies including modular temperature-response elements heat-responsive design agricultural advances enable optimization crop yields allow thrive increasingly inhospitable environments.

Язык: Английский

Процитировано

0

Genome-wide Identification and Characterization of the LRX Gene Family in Grapevine (Vitis vinifera L.) and Functional Characterization of VvLRX7 in Plant Salt Response DOI Creative Commons
Kai Liu, Xiujie Li,

Chaoping Wang

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Авг. 15, 2024

Abstract Background Leucine-rich repeat (LRR) extensins (LRXs), cell wall-localized chimeric extensin proteins, are essential for the development of plants and in their stress resistance. Despite significance, an extensive genome-wide analysis LRX gene family grapevine (Vitis vinifera L.) is lacking. Results We here detected 14 grapevine LRX genes classified them into four groups through phylogenetic analysis. Their physiological biochemical properties gene/protein structures were also analyzed. According to synteny analysis, expansion has been appreciably affected by tandem segmental duplications. On investigating tissue-specific expression profiles cis-regulatory elements, VvLRXs were found be comprehensive regulators growth response environmental stresses. Salt treatments induced several VvLRXs, VvLRX7was most significantly upregulated. Furthermore, VvLRX7expression was positively correlated with salt tolerance grape rootstocks. VvLRX7 overexpression Arabidopsismarkedly enhanced its tolerance. Conclusion This study provided a general understanding characteristics evolution grapevine. And it demonstrated that may key regulator plant response. This provides basis future studies function LRXs improvement

Язык: Английский

Процитировано

0