Cell Cycle Regulation in the Plant Response to Stress

Qi, Feifei; Zhang, Fuxin

doi:10.3389/fpls.2019.01765

Cited by 153 publications

(115 citation statements)

References 134 publications

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“…Among the MSA genes, six ribosomal subunit proteins are regulated by signaling molecules such as methyl jasmonate, salicylic acid and environmental stress e.g., cold, heat, UV, drought, salinity [88], [89]. Two cell cycle related MSA genes – cyclin-A and ‘APC10’ are involved in plant immunity, disease resistance as well as abiotic stress responses [90], [91].…”

Section: Resultsmentioning

confidence: 99%

Genome sequencing of turmeric provides evolutionary insights into its medicinal properties

Chakraborty

Mahajan

Jaiswal

et al. 2020

Preprint

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Curcuma longa, or turmeric, is traditionally known for its immense medicinal properties and has diverse therapeutic applications. However, the absence of a reference genome sequence is a limiting factor in understanding the genomic basis of the origin of its medicinal properties. In this study, we present the draft genome sequence of Curcuma longa, the first species sequenced from Zingiberaceae plant family, constructed using 10x Genomics linked reads. For comprehensive gene set prediction and for insights into its gene expression, the transcriptome sequencing of leaf tissue was also performed. The draft genome assembly had a size of 1.24 Gbp with ~74% repetitive sequences, and contained 56,036 coding gene sequences. The phylogenetic position of Curcuma longa was resolved through a comprehensive genome-wide phylogenetic analysis with 16 other plant species. Using 5,294 orthogroups, the comparative evolutionary analysis performed across 17 species including Curcuma longa revealed evolution in genes associated with secondary metabolism, plant phytohormones signaling, and various biotic and abiotic stress tolerance responses. These mechanisms are crucial for perennial and rhizomatous plants such as Curcuma longa for defense and environmental stress tolerance via production of secondary metabolites, which are associated with the wide range of medicinal properties in Curcuma longa.

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Section: Resultsmentioning

confidence: 99%

Genome sequencing of turmeric provides evolutionary insights into its medicinal properties

Chakraborty

Mahajan

Jaiswal

et al. 2020

Preprint

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“…Sugars and CKs are fully part of the regulation of the dynamic balance between cell division and cell differentiation, which determines organ shape and size. Sugars can activate the expression of key cell cycle regulators, such as cyclin-dependent kinases (CDKs) and their interacting cyclins (CYCs), promoting the G2/mitosis transition in Arabidopsis seedling meristematic tissues [ 88 , 94 , 95 , 96 , 97 ]. CK signaling contributes to the stimulation of cell division and meristem initiation/formation [ 98 , 99 ].…”

Section: Meristem Establishment and Functioningmentioning

confidence: 99%

Convergence and Divergence of Sugar and Cytokinin Signaling in Plant Development

Wang

Gourrierec

Jiao

et al. 2021

IJMS

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Plants adjust their growth and development through a sophisticated regulatory system integrating endogenous and exogenous cues. Many of them rely on intricate crosstalk between nutrients and hormones, an effective way of coupling nutritional and developmental information and ensuring plant survival. Sugars in their different forms such as sucrose, glucose, fructose and trehalose-6-P and the hormone family of cytokinins (CKs) are major regulators of the shoot and root functioning throughout the plant life cycle. While their individual roles have been extensively investigated, their combined effects have unexpectedly received little attention, resulting in many gaps in current knowledge. The present review provides an overview of the relationship between sugars and CKs signaling in the main developmental transition during the plant lifecycle, including seed development, germination, seedling establishment, root and shoot branching, leaf senescence, and flowering. These new insights highlight the diversity and the complexity of the crosstalk between sugars and CKs and raise several questions that will open onto further investigations of these regulation networks orchestrating plant growth and development.

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“…There are seven groups of CDKs (CDKA to CDKG) and seven classes of cyclins (CYC) in plants. In plants, the A, B and D cyclin classes have been defined [ 5 ]. The A-type cyclins are expressed during the S, G2 and M phases, while the B-type cyclins accumulate during the G2-M phases and regulate the entry into the M phase.…”

Section: Introductionmentioning

confidence: 99%

“…Both the biotic and abiotic stresses that affect plants can influence the cell cycle progression. It was shown that temperature stress arrests the cell cycle due to the reduced transcription of CYCA and CYCB and, as a result, decreased CDK activity [ 5 ]. In wheat seedlings that had been subjected to mild water stress, the mitotic activity was reduced in the mesophyll cells due to the decreased activity of CDKA1 , which is required for entry into mitosis [ 5 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Defining the Cell Wall, Cell Cycle and Chromatin Landmarks in the Responses of Brachypodium distachyon to Salinity

Wolny

Skalska

Brąszewska-Zalewska

et al. 2021

IJMS

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Excess salinity is a major stress that limits crop yields. Here, we used the model grass Brachypodium distachyon (Brachypodium) reference line Bd21 in order to define the key molecular events in the responses to salt during germination. Salt was applied either throughout the germination period (“salt stress”) or only after root emergence (“salt shock”). Germination was affected at ≥100 mM and root elongation at ≥75 mM NaCl. The expression of arabinogalactan proteins (AGPs), FLA1, FLA10, FLA11, AGP20 and AGP26, which regulate cell wall expansion (especially FLA11), were mostly induced by the “salt stress” but to a lesser extent by “salt shock”. Cytological assessment using two AGP epitopes, JIM8 and JIM13 indicated that “salt stress” increases the fluorescence signals in rhizodermal and exodermal cell wall. Cell division was suppressed at >75 mM NaCl. The cell cycle genes (CDKB1, CDKB2, CYCA3, CYCB1, WEE1) were induced by “salt stress” in a concentration-dependent manner but not CDKA, CYCA and CYCLIN-D4-1-RELATED. Under “salt shock”, the cell cycle genes were optimally expressed at 100 mM NaCl. These changes were consistent with the cell cycle arrest, possibly at the G1 phase. The salt-induced genomic damage was linked with the oxidative events via an increased glutathione accumulation. Histone acetylation and methylation and DNA methylation were visualized by immunofluorescence. Histone H4 acetylation at lysine 5 increased strongly whereas DNA methylation decreased with the application of salt. Taken together, we suggest that salt-induced oxidative stress causes genomic damage but that it also has epigenetic effects, which might modulate the cell cycle and AGP expression gene. Based on these landmarks, we aim to encourage functional genomics studies on the responses of Brachypodium to salt.

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Cell Cycle Regulation in the Plant Response to Stress

Cited by 153 publications

References 134 publications

Genome sequencing of turmeric provides evolutionary insights into its medicinal properties

Genome sequencing of turmeric provides evolutionary insights into its medicinal properties

Convergence and Divergence of Sugar and Cytokinin Signaling in Plant Development

Defining the Cell Wall, Cell Cycle and Chromatin Landmarks in the Responses of Brachypodium distachyon to Salinity

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