Phytohormones in regulation of the cell division and endoreduplication process in the plant cell cycle

Tank, Jigna G.; Pandya, Rohan V.; Thaker, Vrinda S.

doi:10.1039/c3ra45367g

Cited by 9 publications

(6 citation statements)

References 117 publications

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“…In this study, CYCB1;1 transcript level was inhibited in OE‐CRY1a plants with concomitant decreases in IAA, CTKs, and GAs levels in leaves. JA is thought to negatively regulate plant growth by inhibiting CDK activity in both the G1/S and G2/M phase transitions (Tank et al, ), we found an elevated content of JA in cry1a mutant, but a reduced level in OE‐CRY1a lines. It is worth noting that GAs and JA function antagonistically in many growth and developmental processes in plants.…”

Section: Discussionsupporting

confidence: 59%

“…In our study, overexpression of CRY1a significantly decreased the number of S‐phase cells but resulted in a higher number of G2 cells in the leaves (Table ), suggesting that overexpression of CRY1a might inhibit both the G1‐S and G2‐M transitions in the cell cycle. Cell cycle and thus cell division are predominantly regulated by CDKs and CYCs, nonetheless, the activity of CDK/CYC complexes are modulated by different phytohormones at various phases of the cell cycle (Tank, Pandya, & Thaker, ). For instance, the transition through G1/S phase of the cell cycle can be controlled by endogenous manipulation of CTKs levels (Schaller et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…We noticed that IAA content drastically reduced in OE‐CRY1a plants that might inhibit the progress from G1/S transition to the G2/M transition. Moreover, the progress of cell cycle from the G2 to the M phase is mediated by CYCB, and the expression of the CYCB is indirectly regulated by auxin, CTKs, and GAs (Tank et al, ). In this study, CYCB1;1 transcript level was inhibited in OE‐CRY1a plants with concomitant decreases in IAA, CTKs, and GAs levels in leaves.…”

Section: Discussionmentioning

confidence: 99%

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Tomato CRY1a plays a critical role in the regulation of phytohormone homeostasis, plant development, and carotenoid metabolism in fruits

Liu

Ahammed

Wang

et al. 2017

Plant Cell & Environment

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Blue light photoreceptors, cryptochromes (CRYs), regulate multiple aspects of plant growth and development. However, our knowledge of CRYs is predominantly based on model plant Arabidopsis at early growth stage. In this study, we elucidated functions of CRY1a gene in mature tomato (Solanum lycopersicum) plants by using cry1a mutants and CRY1a-overexpressing lines (OE-CRY1a-1 and OE-CRY1a-2). In comparison with wild-type plants, cry1a mutants are relatively tall, accumulate low biomass, and bear more fruits, whereas OE-CRY1a plants are short stature, and they not only flower lately but also bear less fruits. RNA-seq, qRT-PCR, and LC-MS/MS analysis revealed that biosynthesis of gibberellin, cytokinin, and jasmonic acid was down-regulated by CRY1a. Furthermore, DNA replication was drastically inhibited in leaves of OE-CRY1a lines, but promoted in cry1a mutants with concomitant changes in the expression of cell cycle genes. However, CRY1a positively regulated levels of soluble sugars, phytofluene, phytoene, lycopene, and ß-carotene in the fruits. The results indicate the important role of CRY1a in plant growth and have implications for molecular interventions of CRY1a aimed at improving agronomic traits.

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Section: Discussionsupporting

confidence: 59%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Tomato CRY1a plays a critical role in the regulation of phytohormone homeostasis, plant development, and carotenoid metabolism in fruits

Liu

Ahammed

Wang

et al. 2017

Plant Cell & Environment

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“…These data emphasize the involvement of plant hormones and ROS in Cd-induced effects on the cell cycle. The significance of various phytohormones and their complex interactions in regulating cell division and endoreduplication was extensively reviewed by Tank et al (2014) [132]. Although the precise role of ROS in cell cycle regulation is still unclear, their importance in this process is illustrated by the fact that oxidative and reductive signals are required for certain cell cycle transitions.…”

Section: Vegetative Plant Growthmentioning

confidence: 99%

Cadmium and Plant Development: An Agony from Seed to Seed

Huybrechts

Cuypers

Deckers

et al. 2019

IJMS

148

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Anthropogenic pollution of agricultural soils with cadmium (Cd) should receive adequate attention as Cd accumulation in crops endangers human health. When Cd is present in the soil, plants are exposed to it throughout their entire life cycle. As it is a non-essential element, no specific Cd uptake mechanisms are present. Therefore, Cd enters the plant through transporters for essential elements and consequently disturbs plant growth and development. In this review, we will focus on the effects of Cd on the most important events of a plant’s life cycle covering seed germination, the vegetative phase and the reproduction phase. Within the vegetative phase, the disturbance of the cell cycle by Cd is highlighted with special emphasis on endoreduplication, DNA damage and its relation to cell death. Furthermore, we will discuss the cell wall as an important structure in retaining Cd and the ability of plants to actively modify the cell wall to increase Cd tolerance. As Cd is known to affect concentrations of reactive oxygen species (ROS) and phytohormones, special emphasis is put on the involvement of these compounds in plant developmental processes. Lastly, possible future research areas are put forward and a general conclusion is drawn, revealing that Cd is agonizing for all stages of plant development.

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“…This switch involves a recurrent progression through the G1/S checkpoint with no subsequent chromatid segregation, nucleus (karyokinesis), and cell (cytokinesis) division. The complex machinery of transition from the regular cell cycle to the endoreduplication has been described elsewhere [56][57][58]. Here we would like to emphasize that the necessity of passing the G1/S transition and S phase indicates at least partial similarity of mechanisms between these two programs.…”

Section: Cell Proliferation During Embryogenesismentioning

confidence: 81%

Temporal Control of Seed Development in Dicots: Molecular Bases, Ecological Impact and Possible Evolutionary Ramifications

Malovichko

Shikov

Nizhnikov

et al. 2021

IJMS

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In flowering plants, seeds serve as organs of both propagation and dispersal. The developing seed passes through several consecutive stages, following a conserved general outline. The overall time needed for a seed to develop, however, may vary both within and between plant species, and these temporal developmental properties remain poorly understood. In the present paper, we summarize the existing data for seed development alterations in dicot plants. For genetic mutations, the reported cases were grouped in respect of the key processes distorted in the mutant specimens. Similar phenotypes arising from the environmental influence, either biotic or abiotic, were also considered. Based on these data, we suggest several general trends of timing alterations and how respective mechanisms might add to the ecological plasticity of the families considered. We also propose that the developmental timing alterations may be perceived as an evolutionary substrate for heterochronic events. Given the current lack of plausible models describing timing control in plant seeds, the presented suggestions might provide certain insights for future studies in this field.

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Phytohormones in regulation of the cell division and endoreduplication process in the plant cell cycle

Cited by 9 publications

References 117 publications

Tomato CRY1a plays a critical role in the regulation of phytohormone homeostasis, plant development, and carotenoid metabolism in fruits

Tomato CRY1a plays a critical role in the regulation of phytohormone homeostasis, plant development, and carotenoid metabolism in fruits

Cadmium and Plant Development: An Agony from Seed to Seed

Temporal Control of Seed Development in Dicots: Molecular Bases, Ecological Impact and Possible Evolutionary Ramifications

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