Genes & Genomics, Год журнала: 2025, Номер unknown
Опубликована: Апрель 7, 2025
Язык: Английский
The Plant Cell, Год журнала: 2024, Номер 36(6), С. 2086 - 2102
Опубликована: Март 21, 2024
Abstract How does a plant detect the changing seasons and make important developmental decisions accordingly? do they incorporate daylength information into their routine physiological processes? Photoperiodism, or capacity to measure daylength, is crucial aspect of development that helps plants determine best time year vital decisions, such as flowering. The protein CONSTANS (CO) constitutes central regulator this sensing mechanism, not only activating florigen production in leaves but also participating many aspects which seasonality important. Recent discoveries place CO center gene network can length day confer seasonal input physiology senescence, seed size, circadian rhythms. In review, we discuss importance structure, function, evolutionary mechanisms embryophytes have developed annual physiology.
Язык: Английский
Процитировано
9
Horticultural Plant Journal, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Molecular Breeding, Год журнала: 2024, Номер 45(1)
Опубликована: Дек. 24, 2024
Язык: Английский
Процитировано
6
Plant and Cell Physiology, Год журнала: 2024, Номер 65(3), С. 322 - 337
Опубликована: Янв. 5, 2024
Abstract Plants undergo a series of developmental phases throughout their life-cycle, each characterized by specific processes. Three critical features distinguish these phases: the arrangement primordia (phyllotaxis), timing differentiation (plastochron) and characteristics lateral organs axillary meristems. Identifying unique molecular phase, determining triggers that cause transitions understanding mechanisms underlying are keys to gleaning complete plant development. During vegetative shoot apical meristem (SAM) facilitates continuous leaf stem formation, with development as hallmark. The transition reproductive phase induces significant changes in processes, driven mainly protein FT (FLOWERING LOCUS T) Arabidopsis proteins encoded orthologs, which specified ‘florigen’. These synthesized leaves transported SAM, act primary flowering signal, although its impact varies among species. Within florigen integrates other signals, culminating changes. This review explores central question how SAM. Future research may combine studies, potentially revealing florigen-induced
Язык: Английский
Процитировано
6
Plant Cell Reports, Год журнала: 2024, Номер 43(5)
Опубликована: Апрель 18, 2024
Abstract Key message FKF1 dimerization is crucial for proper FT levels to fine-tune flowering time. Attenuating homodimerization increased CO abundance by enhancing its COP1 binding, thereby accelerating under long days. In Arabidopsis ( thaliana ), the blue-light photoreceptor (FLAVIN-BINDING, KELCH REPEAT, F-BOX 1) plays a key role in inducing expression of FLOWERING LOCUS T encoding main florigenic signal plants, late afternoon long-day conditions (LDs) forming dimers with regulators. Although structural studies have unveiled variant (FKF1 I160R) that disrupts homodimer formation vitro, mechanism which disrupted regulates time remains elusive. this study, we determined attenuation enhances evening promoting stability CONSTANS (CO), primary activator , afternoon, contributing early flowering. contrast wild-type FKF1, introducing I160R into fkf1 mutant led LDs. addition, exhibited diminished while interaction GIGANTEA (GI), modulator function, was enhanced Furthermore, level LDs binding COP1, an E3 ubiquitin ligase responsible degradation. These findings suggest regulation and heterodimerization allows plants finely adjust around dusk modulating interactions GI COP1.
Язык: Английский
Процитировано
5
Journal of Experimental Botany, Год журнала: 2024, Номер 76(3), С. 730 - 745
Опубликована: Апрель 25, 2024
Exogenous light cues and the phytohormone abscisic acid (ABA) regulate several aspects of plant growth development. In recent years, role crosstalk between ABA signaling pathways in regulating different physiological processes has become increasingly evident. This includes regulation germination early seedling development, control stomatal development conductance, growth, roots, buds, branches, flowering. Light cascades have various convergence points at both DNA protein levels. The molecular involves factors such as HY5, COP1, PIFs, BBXs that integrate with components PYL receptors ABI5. particular, ABI5 PIF4 promoters are key 'hotspots' for integrating these two pathways. Plants acquired before they colonized land almost 500 million years ago. this review, we discuss advances interplay provide an overview evolution
Язык: Английский
Процитировано
5
Journal of Experimental Botany, Год журнала: 2024, Номер 75(14), С. 4180 - 4194
Опубликована: Март 8, 2024
The timing of the developmental transition from vegetative to reproductive stage is critical for angiosperms, and fine-tuned by integration endogenous factors external environmental cues ensure successful reproduction. Plants have evolved sophisticated mechanisms response diverse or stress signals, these can be mediated hormones coordinate flowering time. Phytohormones such as gibberellin, auxin, cytokinin, jasmonate, abscisic acid, ethylene, brassinosteroids cross-talk among them are precise regulation Recent studies model plant Arabidopsis revealed that transcription epigenetic regulators play key roles in relation phytohormones regulate floral transition. This review aims summarize our current knowledge genetic underlie phytohormonal control Arabidopsis, offering insights into how processes regulated their implications biology.
Язык: Английский
Процитировано
4
Опубликована: Янв. 3, 2025
The precise onset of flowering is crucial to ensure successful plant reproduction. gene FLOWERING LOCUS T ( FT ) encodes florigen, a mobile signal produced in leaves that initiates at the shoot apical meristem. In response seasonal changes, induced phloem companion cells located distal leaf regions. Thus far, detailed molecular characterization -expressing has been lacking. Here, we used bulk nuclei RNA-seq and single RNA (snRNA)-seq investigate expression other cells. Our demonstrated cotyledons true differed transcriptionally. Within leaves, our snRNA-seq analysis revealed with high form unique cluster which many genes involved ATP biosynthesis are highly upregulated. also expresses encoding small proteins, including stem growth inducer FPF1-LIKE PROTEIN 1 (FLP1) anti-florigen BROTHER OF AND TFL1 (BFT). addition, found promoters co-expressed were enriched for consensus binding motifs NITRATE-INDUCIBLE GARP-TYPE TRANSCRIPTIONAL REPRESSOR (NIGT1). Overexpression paralogous NIGT1.2 NIGT1.4 repressed significantly delayed under nitrogen-rich conditions, consistent NIGT1s acting as nitrogen-dependent repressors. Taken together, results demonstrate major show distinct profile suggests these may produce multiple systemic signals regulate development.
Язык: Английский
Процитировано
0
Опубликована: Янв. 3, 2025
The precise onset of flowering is crucial to ensure successful plant reproduction. gene FLOWERING LOCUS T ( FT ) encodes florigen, a mobile signal produced in leaves that initiates at the shoot apical meristem. In response seasonal changes, induced phloem companion cells located distal leaf regions. Thus far, detailed molecular characterization -expressing has been lacking. Here, we used bulk nuclei RNA-seq and single RNA (snRNA)-seq investigate expression other cells. Our demonstrated cotyledons true differed transcriptionally. Within leaves, our snRNA-seq analysis revealed with high form unique cluster which many genes involved ATP biosynthesis are highly upregulated. also expresses encoding small proteins, including stem growth inducer FPF1-LIKE PROTEIN 1 (FLP1) anti-florigen BROTHER OF AND TFL1 (BFT). addition, found promoters co-expressed were enriched for consensus binding motifs NITRATE-INDUCIBLE GARP-TYPE TRANSCRIPTIONAL REPRESSOR (NIGT1). Overexpression paralogous NIGT1.2 NIGT1.4 repressed significantly delayed under nitrogen-rich conditions, consistent NIGT1s acting as nitrogen-dependent repressors. Taken together, results demonstrate major show distinct profile suggests these may produce multiple systemic signals regulate development.
Язык: Английский
Процитировано
0
Genes, Год журнала: 2025, Номер 16(1), С. 64 - 64
Опубликована: Янв. 8, 2025
Background/Objectives: Cowpea is an important legume crop in sub-Saharan Africa (SSA) and beyond. However, access to phosphorus (P), a critical element for plant growth development, significant constraint SSA. Thus, it essential have high P-use efficiency varieties achieve increased yields environments where little-to- no phosphate fertilizers are applied. Methods: In this study, phenology, yield, grain P traits were assessed two recombinant inbred line (RIL) populations across ten under high- low-P soil conditions identify traits’ response different levels associated quantitative trait loci (QTLs). Single-environment (SEA) multi-environment (MEA) QTL analyses conducted days flowering (DTF), maturity (DTM), biomass yield (BYLD), (GYLD), (gPUE) P-uptake (gPUpE). Results: Phenotypic data indicated variation among the RILs, inadequate had negative impact on flowering, maturity, traits. A total of 40 QTLs identified by SEA, with most explaining greater than 10% phenotypic variance, indicating that many major-effect contributed genetic component these Similarly, MEA 23 DTF, DTM, GYLD, gPUpE environments. Thirty percent (12/40) SEA also found MEA, some those more one environment, highlighting their potential breeding programs targeting PUE. chromosomes Vu03 Vu08 exhibited consistent effects both conditions. addition, candidate genes underlying regions identified. Conclusions: This study lays foundation molecular PUE contributes understanding basis cowpea Some genomic loci, being novel QTLs, could be deployed marker-aided selection fine mapping genes.
Язык: Английский
Процитировано
0