Regulation of growth and dormancy in pea axillary buds.

Stafstrom, Joel P.; Viémont, Jean-Daniel; Crabbé, J.

doi:10.1079/9780851994475.0331

Cited by 12 publications

(16 citation statements)

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“…Since auxin represses PsDRM1 in pea (Stafstrom, 2000), the suppression of SbDRM1 mRNA accumulation by light suggests that similar dormancy mechanisms are induced by both auxin and light. Phytochrome regulation of gene expression has been shown to be both auxin dependent and auxin independent (Tanaka et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…PsDRM1 is expressed in dormant axillary buds, and its expression is suppressed by decapitation and auxin (Stafstrom et al, 1998b;Stafstrom, 2000). PsDRM1 is also expressed in mature stems and roots.…”

Section: Expression Of Sbdrm1 In Different Organs Of Sorghum Seedlingsmentioning

confidence: 99%

“…Early decapitation studies and application of plant hormones showed that auxin produced in the shoot apex inhibits the outgrowth of axillary buds (Thimann and Skoog, 1933). Further research indicated that other plant hormones, such as cytokinins and abscisic acid, are also involved in regulating branching (for review, see Stafstrom, 2000;Shimizu and Mori, 2001). …”

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Phytochrome B Represses Teosinte Branched1 Expression and Induces Sorghum Axillary Bud Outgrowth in Response to Light Signals

2006

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Light is one of the environmental signals that regulate the development of shoot architecture. Molecular mechanisms regulating shoot branching by light signals have not been investigated in detail. Analyses of light signaling mutants defective in branching provide insight into the molecular events associated with the phenomenon. It is well documented that phytochrome B (phyB) mutant plants display constitutive shade avoidance responses, including increased plant height and enhanced apical dominance. We investigated the phyB-1 mutant sorghum (Sorghum bicolor) and analyzed the expression of the sorghum Teosinte Branched1 gene (SbTB1), which encodes a putative transcription factor that suppresses bud outgrowth, and the sorghum dormancy-associated gene (SbDRM1), a marker of bud dormancy. Buds are formed in the leaf axils of phyB-1; however, they enter into dormancy soon after their formation. The dormant state of phyB-1 buds is confirmed by the high level of expression of the SbDRM1 gene. The level of SbTB1 mRNA is higher in the buds of phyB-1 compared to wild type, suggesting that phyB mediates the growth of axillary shoots in response to light signals in part by regulating the mRNA abundance of SbTB1. These results are confirmed by growing wild-type seedlings with supplemental far-red light that induces shade avoidance responses. We hypothesize that active phyB (Pfr) suppresses the expression of the SbTB1 gene, thereby inducing bud outgrowth, whereas environmental conditions that inactivate phyB allow increased expression of SbTB1, thereby suppressing bud outgrowth.

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Section: Discussionmentioning

confidence: 99%

Section: Expression Of Sbdrm1 In Different Organs Of Sorghum Seedlingsmentioning

confidence: 99%

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Phytochrome B Represses Teosinte Branched1 Expression and Induces Sorghum Axillary Bud Outgrowth in Response to Light Signals

2006

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“…건조와 염 스트레스에 반응하는 유전자의 경우 ABA 신호 전달경로에 의해 조절되는 기작이 잘 알려져 있다 (Shinozaki and Yamaguchi-Shinozaki, 2000). ABA에 의한 DRM 유전자의 발현 증가는 완두콩 (Stafstrom et al 2000)과 토마토 (Vriezen et al 2008)에서 보고되었다. 완두콩의 PsDRM1은 본 연구결 과와 유사하게 ABA에 의해 발현이 증가하지만 GA에 대해 서는 반응하지 않았다 (Stafstrom et al 2000).…”

Section: Pagdrm1 유전자의 조직특이적 발현unclassified

“…ABA에 의한 DRM 유전자의 발현 증가는 완두콩 (Stafstrom et al 2000)과 토마토 (Vriezen et al 2008)에서 보고되었다. 완두콩의 PsDRM1은 본 연구결 과와 유사하게 ABA에 의해 발현이 증가하지만 GA에 대해 서는 반응하지 않았다 (Stafstrom et al 2000). 그러나 애기장 대의 AtDRM1.2와 AtDRM1.4는 GA에 의해 발현이 감소하는 것으로 나타났다 (Rae et al 2014).…”

Section: Pagdrm1 유전자의 조직특이적 발현unclassified

Isolation and Expression of Dormancy-associated protein 1 (DRM1) in Poplar (Populus alba × P. glandulosa)

et al. 2017

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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.Abstract Dormancy-associated protein (DRM) is involved in the dormancy physiology of plants and is conserved in almost all plant species. Recent studies found that DRM genes are involved in the abiotic stress response, and characterization studies of these genes have been conducted in several plants. However, few studies have focused on DRM genes in woody plants. Therefore, in this study, cDNA coding for DRM (PagDRM1) was isolated from poplar (Populus alba × P. glandulosa), and its structure and expression characteristics were investigated. PagDRM1 encodes a putative protein composed of 123 amino acids, and the protein contains two conserved domains (Domain I and Domain II). PagDRM1 is present as one or two copies in the poplar genome. Its expression level was highest in the stem, followed by mature leaves, roots, and flowers. During the growth of cultured cells in suspension, PagDRM1 was highly expressed from the late-exponential phase to the stationary phase. In addition, PagDRM1 expression increased in response to drought, salt stress, and treatment with plant hormones (e.g., abscisic acid and gibberellic acid). Therefore, we suggested that PagDRM1 not only plays an important role in the induction of dormancy, but also contributes to stress tolerance in plants.

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Proteomic Analysis Points to a Role for RAD23 in Apical Dominance in Pinus sylvestris var. Mongolica

Ning

Yang

et al. 2013

Plant Mol Biol Rep

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Regulation of growth and dormancy in pea axillary buds.

Cited by 12 publications

References 0 publications

Phytochrome B Represses Teosinte Branched1 Expression and Induces Sorghum Axillary Bud Outgrowth in Response to Light Signals

Phytochrome B Represses Teosinte Branched1 Expression and Induces Sorghum Axillary Bud Outgrowth in Response to Light Signals

Isolation and Expression of Dormancy-associated protein 1 (DRM1) in Poplar (Populus alba × P. glandulosa)

Proteomic Analysis Points to a Role for RAD23 in Apical Dominance in Pinus sylvestris var. Mongolica

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