Cyclin dependent protein kinases and stress responses in plants

Kitsios, Georgios D; Doonan, John H.

doi:10.4161/psb.6.2.14835

Cited by 72 publications

(60 citation statements)

References 118 publications

(115 reference statements)

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“…In wheat, cyclin expression is reduced and cells accumulate in the G1 and G2 phases under drought stress. Early endosperm development is particularly vulnerable to drought stress, possibly because of the heavy mitotic requirements (Kitsios and Doonan, 2011). As shown in Figure 6, of 11 cyclin genes, all except for two showed decreased transcript abundance in drought-stressed ovary tissue (cyclinD4 showed increased transcript abundance and a cyclin d was undetected).…”

Section: Cell Cycle and Cell Division Are Affected By Drought Stressmentioning

confidence: 99%

Effects of Drought on Gene Expression in Maize Reproductive and Leaf Meristem Tissue Revealed by RNA-Seq

et al. 2012

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Drought stress affects cereals especially during the reproductive stage. The maize (Zea mays) drought transcriptome was studied using RNA-Seq analysis to compare drought-treated and well-watered fertilized ovary and basal leaf meristem tissue. More drought-responsive genes responded in the ovary compared with the leaf meristem. Gene Ontology enrichment analysis revealed a massive decrease in transcript abundance of cell division and cell cycle genes in the drought-stressed ovary only. Among Gene Ontology categories related to carbohydrate metabolism, changes in starch and Suc metabolism-related genes occurred in the ovary, consistent with a decrease in starch levels, and in Suc transporter function, with no comparable changes occurring in the leaf meristem. Abscisic acid (ABA)-related processes responded positively, but only in the ovaries. Related responses suggested the operation of low glucose sensing in drought-stressed ovaries. The data are discussed in the context of the susceptibility of maize kernel to drought stress leading to embryo abortion and the relative robustness of dividing vegetative tissue taken at the same time from the same plant subjected to the same conditions. Our working hypothesis involves signaling events associated with increased ABA levels, decreased glucose levels, disruption of ABA/sugar signaling, activation of programmed cell death/senescence through repression of a phospholipase C-mediated signaling pathway, and arrest of the cell cycle in the stressed ovary at 1 d after pollination. Increased invertase levels in the stressed leaf meristem, on the other hand, resulted in that tissue maintaining hexose levels at an "unstressed" level, and at lower ABA levels, which was correlated with successful resistance to drought stress.

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Section: Cell Cycle and Cell Division Are Affected By Drought Stressmentioning

confidence: 99%

Effects of Drought on Gene Expression in Maize Reproductive and Leaf Meristem Tissue Revealed by RNA-Seq

et al. 2012

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“…4). The cell cycle machinery is known to get affected as a result of stress perception [52,53]. As shown in Fig.…”

Section: Comparative Transcription Analysis Of Genes Involved In Dehymentioning

confidence: 99%

ABI3 mediates dehydration stress recovery response in Arabidopsis thaliana by regulating expression of downstream genes

et al. 2016

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“…In addition to interacting with CDKDs, CYCH;1 interacts with 16 Arabidopsis core cell cycle proteins, including CDKs, CDK subunits, and Kip-related proteins (Boruc et al, 2010). Several lines of evidence indicate that cell cycle and non-cell cycle cyclins and CDKs regulate abiotic stress responses (Kitsios and Doonan, 2011). For example, rice (Oryza sativa) plants overexpressing OsCYCB1;1 showed enhanced resistance to cold stress .…”

Section: Discussionmentioning

confidence: 99%

CYCLIN H;1 Regulates Drought Stress Responses and Blue Light-Induced Stomatal Opening by Inhibiting Reactive Oxygen Species Accumulation in Arabidopsis

Zhou

Jin

Yoo³

et al. 2013

Plant Physiology

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Arabidopsis (Arabidopsis thaliana) CYCLIN-DEPENDENT KINASE Ds (CDKDs) phosphorylate the C-terminal domain of the largest subunit of RNA polymerase II. Arabidopsis CYCLIN H;1 (CYCH;1) interacts with and activates CDKDs; however, the physiological function of CYCH;1 has not been determined. Here, we report that CYCH;1, which is localized to the nucleus, positively regulates blue light-induced stomatal opening. Reduced-function cych;1 RNA interference (cych;1 RNAi ) plants exhibited a drought tolerance phenotype. CYCH;1 is predominantly expressed in guard cells, and its expression was substantially down-regulated by dehydration. Transpiration of intact leaves was reduced in cych;1 RNAi plants compared with the wild-type control in light but not in darkness. CYCH;1 down-regulation impaired blue light-induced stomatal opening but did not affect guard cell development or abscisic acid-mediated stomatal closure. Microarray and real-time polymerase chain reaction analyses indicated that CYCH;1 did not regulate the expression of abscisic acid-responsive genes or light-induced stomatal opening signaling determinants, such as MYB60, MYB61, Hypersensitive to red and blue1, and Protein phosphatase7. CYCH;1 down-regulation induced the expression of redox homeostasis genes, such as LIPOXYGENASE3 (LOX3), LOX4, ARABIDOPSIS GLUTATHIONE PEROXIDASE 7 (ATGPX7), EARLY LIGHT-INDUCIBLE PROTEIN1 (ELIP1), and ELIP2, and increased hydrogen peroxide production in guard cells. Furthermore, loss-of-function mutations in CDKD;2 or CDKD;3 did not affect responsiveness to drought stress, suggesting that CYCH;1 regulates the drought stress response in a CDKD-independent manner. We propose that CYCH;1 regulates blue light-mediated stomatal opening by controlling reactive oxygen species homeostasis.

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Cyclin dependent protein kinases and stress responses in plants

Cited by 72 publications

References 118 publications

Effects of Drought on Gene Expression in Maize Reproductive and Leaf Meristem Tissue Revealed by RNA-Seq

Effects of Drought on Gene Expression in Maize Reproductive and Leaf Meristem Tissue Revealed by RNA-Seq

ABI3 mediates dehydration stress recovery response in Arabidopsis thaliana by regulating expression of downstream genes

CYCLIN H;1 Regulates Drought Stress Responses and Blue Light-Induced Stomatal Opening by Inhibiting Reactive Oxygen Species Accumulation in Arabidopsis

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