Waterlogging shifts ontogenic hormone dynamics in tomato leaves and petioles DOI Creative Commons
Batist Geldhof, Ondřej Novák, Bram Van de Poel

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2022, Номер unknown

Опубликована: Дек. 3, 2022

Abstract Waterlogging leads to hypoxic conditions in the root zone that subsequently cause systemic adaptive responses shoot, including leaf epinasty. Waterlogging-induced epinasty tomato has long been ascribed coordinated action of ethylene and auxins. However, other hormonal signals have largely neglected, despite evidence their importance posture control. To adequately cover a large group growth regulators, we performed tissue-specific time-dependent hormonomics analysis. This analysis revealed multiple hormones are differentially affected throughout 48 h waterlogging treatment, and, more importantly, development defines framework which this control is regulated. In addition, could distinguish early might contribute fast towards oxygen deprivation from those potentially sustain response. For example, abscisic acid (ABA) levels peak petioles within first 12 while its metabolites only rise much later, suggesting ABA transport altered. At same time, cytokinins (CK) derivatives drastically decline during leaves all ages. drop CK possibly releases inhibition auxin mediated cell elongation establish epinastic bending. Auxins themselves substantially petiole mature leaves, but mostly after hypoxia. Based on our hormone profiling, propose act synergistically dynamically fine-tune balance IAA petiole, ultimately leading differential waterlogging.

Язык: Английский

Spatially distributed cytokinins: Metabolism, signaling, and transport DOI Creative Commons
Jiangzhe Zhao, Jingqi Wang, Jie Liu

и другие.

Plant Communications, Год журнала: 2024, Номер 5(7), С. 100936 - 100936

Опубликована: Апрель 30, 2024

Cytokinins are mobile phytohormones that regulate plant growth, development, and environmental adaptability. The major cytokinin species include isopentenyl adenine (iP), trans-zeatin (tZ), cis-zeatin (cZ), dihydrozeatin (DZ). spatial distributions of different in organelles, cells, tissues, organs primarily shaped by biosynthesis via isopentenyltransferases (IPT), cytochrome P450 monooxygenase, 5'-ribonucleotide phosphohydrolase conjugation or catabolism glycosyltransferase oxidase/dehydrogenase. bind to histidine receptor kinases the endoplasmic reticulum plasma membrane relay signals response regulators nucleus shuttle proteins known as phosphotransfer proteins. movements cytokinins from sites signal perception usually require long-distance, intercellular, intracellular transport. In past decade, ATP-binding cassette (ABC) transporters, purine permeases (PUP), AZA-GUANINE RESISTANT (AZG) equilibrative nucleoside transporters (ENT), Sugars Will Eventually Be Exported (SWEET) have been characterized involved transport processes. This review begins introducing various subcellular localizations their metabolism signaling. Highlights focus on an inventory compartmentalization, including transport, regulation cues. Future directions for research also discussed.

Язык: Английский

Процитировано

13
Transcriptomics and Plant Hormone Analysis Reveal the Mechanism of Branching Angle Formation in Tea Plants (Camellia sinensis) DOI Open Access

Jinping Zhu,

Xiaoman Li, Jianyan Huang

и другие.

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(2), С. 604 - 604

Опубликована: Янв. 13, 2025

The branching angle of tea plants is a key factor in determining their structure, which significantly affects yield, suitability for mechanical harvesting, and overall plant architecture. However, the mechanisms underlying formation remain unclear. In this study, we explored mechanism by analysing transcriptome hormone levels cultivars with different angles. results indicated that gibberellin positively regulates plants, cytokinins, auxin, abscisic acid involved angles plants. analysis revealed candidate regulatory factors, including plant-hormone-related genes (the synthesis gene GA3ox1 metabolism GA2ox1; cytokinin CKX UGT; auxin signal transduction-related LAX3; transduction PYL4), regulating cell division growth (LAZY1, TAC1, MAX1), transcription factors (MYBs, WRKYs, TCPs, AP2/ERFs, MADS-box), are These offer insights into providing important theoretical reference selection breeding suitable thereby improving agricultural efficiency sustainability.

Язык: Английский

Процитировано

1
Overview of molecular mechanisms of plant leaf development: a systematic review DOI Creative Commons

Zhuo Lv,

Wanqi Zhao,

Shuxin Kong

и другие.

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Дек. 7, 2023

Leaf growth initiates in the peripheral region of meristem at apex stem, eventually forming flat structures. Leaves are pivotal organs plants, serving as primary sites for photosynthesis, respiration, and transpiration. Their development is intricately governed by complex regulatory networks. encompasses five processes: leaf primordium initiation, polarity establishment, size expansion, shaping leaf, senescence. The primordia starts from side cone stem. Under precise regulation a series genes, establishes adaxial-abaxial axes, proximal-distal axes medio-lateral polarity, guides cells to divide differentiate specific direction, finally develops into leaves certain shape size. senescence kind programmed cell death that occurs it last stage development. Each these processes meticulously coordinated through intricate interplay among transcriptional factors, microRNAs, plant hormones. This review dedicated examining influences major factors hormones on developmental aspects leaves.

Язык: Английский

Процитировано

18
Silicon nutrition improves the quality and yield of rice under dry cultivation DOI Open Access
Hao Jiang, Xiaotian Xu, Anran Sun

и другие.

Journal of the Science of Food and Agriculture, Год журнала: 2023, Номер 104(4), С. 1897 - 1908

Опубликована: Ноя. 3, 2023

Dry cultivation of rice is a water-saving, emission reduction and labor-saving farming method. However, the development under dry hampered by limitations on yield quality. We hypothesized that additional silicon (Si) would be measure to address these or challenges.

Язык: Английский

Процитировано

11
Regulation of Rice Grain Quality by Exogenous Kinetin During Grain-Filling Period DOI Creative Commons
Yunhua Xiao,

Yating Dong,

Meng Zhou

и другие.

Plants, Год журнала: 2025, Номер 14(3), С. 358 - 358

Опубликована: Янв. 24, 2025

Cytokinins (CKs) play important functions in plant growth and development response to adversity stress. However, little is known about the role CK plays rice grain quality. We hypothesized that exogenous cytokinins could improve quality by regulating physiological traits genes related starch synthesis. Therefore, we exogenously applied different concentrations of kinetin (KT), an CK, during grain-filling period. Our results show all KT treatments resulted a significant increase thousand-grain weight. In particular, chalkiness chalky rate were significantly reduced, gel consistency (GC) content alkali spreading value (ASV) increased 10−8 M treatment. Meanwhile, application positively affected transcription some synthesis-related genes, which was contrast 10−5 conclusion, appropriate period can ultimately affect changes relevant indicators, such as appearance (AQ) eating cooking qualities (ECQ).

Язык: Английский

Процитировано

0
Time‐Lapse Imaging Identifies Key Indicators of Brown Planthopper Damage Progression in Rice Varieties DOI
Nak Jung Choi, Ki Bon Ku, Sheikh Mansoor

и другие.

Entomological Research, Год журнала: 2025, Номер 55(3)

Опубликована: Март 1, 2025

ABSTRACT Improving complex agronomic traits such as yield, plant height, and disease resistance in rice ( Oryza sativa L.) is challenging due to their polygenic nature. Conventional breeding methods, often reliant on collective parameters, face limitations efficiently identifying superior genotypes. Phenomics, however, presents a promising, targeted approach by focusing individual phenotypic traits. This study employs time‐lapse imaging monitor dynamic changes plants infested with the brown planthopper (BPH) Nilaparvata lugens ). Utilizing Phlizon 6000 W LED Grow Light, which provides far‐red wavelengths, image acquisition 12 Raspberry Pi 4 Model B units NoIR cameras fitted blue filters for enhanced NDVI calculations, we captured detailed imagery of responses. Our revealed that values stem region control remained stable, while leaf showed an increase. For plants, fluctuations were observed at lamina joint region, whereas consistent. Importantly, damage progression was slower resistant varieties compared susceptible ones, underscoring discoloration valuable parameter evaluating BPH resistance. phenome‐based precision holds significant potential accelerating development this pervasive pest, offering new avenues improving crop resilience yield.

Язык: Английский

Процитировано

0
Purine permease (PUP) family gene PUP11 positively regulates the rice seed setting rate by influencing seed development DOI

Chenyu Rong,

Renren Zhang,

Yuexin Liu

и другие.

Plant Cell Reports, Год журнала: 2024, Номер 43(4)

Опубликована: Апрель 1, 2024

Язык: Английский

Процитировано

3
Multi-locus genome-wide association studies reveal genetic loci and candidate genes for leaf angle traits in cut chrysanthemum DOI

La Lou,

Jiangshuo Su,

Xiaoli Ou

и другие.

Scientia Horticulturae, Год журнала: 2023, Номер 322, С. 112406 - 112406

Опубликована: Авг. 18, 2023

Язык: Английский

Процитировано

6
Antioxidant system was triggered to alleviate salinity stress by cytokinin oxidase/dehydrogenase gene GhCKX6b-Dt in cotton DOI Creative Commons
Mengyue Liu, Yupeng Cui, Fanjia Peng

и другие.

Environmental Sciences Europe, Год журнала: 2023, Номер 35(1)

Опубликована: Окт. 1, 2023

Abstract Cytokinin oxidase/dehydrogenase (CKX) is a key regulatory enzyme for the irreversible degradation of plant hormone cytokinin (CK), which important in growth and development response to abiotic stresses cotton. In this study, 27, 28, 14 CKXs were screened by FAD structural domain binding Gossypium hirsutum , barbadense arboreum raimondii respectively. Their phylogenetic relationships expression patterns analyzed, most GhCKXs found be tissue-specific responsive various such as cold, heat, salt PEG. GhCKX6b-Dt was selected gene silencing evolutionary branch II stress, because its increased after stress cotton plants. An increase PRO MDA content decrease SOD activity due inducing contributing oxidative damage decreased tolerance. analyzed reveal possible role against cotton, provides basis further understanding biological functions CK plants resistance.

Язык: Английский

Процитировано

6
Age-dependent changes in leaf size in apple are governed by a cytokinin-integrated module DOI
Xumei Jia, Shuo Xu, Yuting Wang

и другие.

PLANT PHYSIOLOGY, Год журнала: 2024, Номер 195(3), С. 2406 - 2427

Опубликована: Апрель 8, 2024

Abstract Plants undergo various age-dependent changes in leaf morphology during juvenile to adult vegetative stage. However, the precise molecular mechanisms governing these apple (Malus domestica) remain unknown. Here, we showed that CYTOKININ OXIDASE/DEHYDROGENASE5 (MdCKX5), an gene, encodes a functional CKX enzyme and serves as common downstream target of SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) transcription factor MdSPL14 WRKY MdWRKY24 control degradation cytokinin (CK). As mdm-microRNA156a, interacts with coordinately repress MdCKX5 by forming age-mediated mdm-miR156a–MdSPL14–MdWRKY24 module, which regulates CK juvenile-to-adult phase transition. We further demonstrated MdARR6, type-A ARABIDOPSIS RESPONSE REGULATOR (ARR), is negative feedback regulator signaling pathway. Silencing MdARR6 resulted large leaves smaller epidermal cells greater number cells. Biochemical analysis module acts transcriptional repressor directly regulate expression, thus controlling size reducing responses. These findings established link between age pathway revealed mechanism underlying transition; our results also provide targets for genetic improvement transition apple.

Язык: Английский

Процитировано

2