TheArabidopsis ACR4gene plays a role in cell layer organisation during ovule integument and sepal margin development
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منابع مشابه
The Arabidopsis ACR4 gene plays a role in cell layer organisation during ovule integument and sepal margin development.
The mechanisms regulating cell layer organisation in developing plant organs are fundamental to plant growth, but remain largely uninvestigated. We have studied the receptor kinase-encoding ARABIDOPSIS CRINKLY4 gene and shown that its expression is restricted to the L1 cell layer of most meristems and organ primordia, including those of the ovule integuments. Insertion mutations show that ARABI...
متن کاملSHORT INTEGUMENTS 2 promotes growth during Arabidopsis reproductive development.
The short integuments 2 (sin2) mutation arrests cell division during integument development of the Arabidopsis ovule and also has subtle pleiotropic effects on both sepal and pistil morphology. Genetic interactions between sin2 and other ovule mutations show that cell division, directionality of growth, and cell expansion represent at least partially independent processes during integument deve...
متن کاملInter-cell-layer signalling during Arabidopsis ovule development mediated by the receptor-like kinase STRUBBELIG.
Plant organs, such as ovules and flowers, arise through cellular events that are precisely co-ordinated between cells within and across clonally distinct cell layers. Receptor-like kinases are cell-surface receptors that perceive and relay intercellular information. In Arabidopsis the leucine-rich repeat receptor-like kinase STRUBBELIG (SUB) is required for integument initiation and outgrowth d...
متن کاملSHORT INTEGUMENT (SIN1), a gene required for ovule development in Arabidopsis, also controls flowering time.
The short integument (sin1) mutation causes a female-specific infertility, and a defect in the control of time to flowering in Arabidopsis. Female sterility of Sin- plants is due to abnormal ovule integument development and aberrant differentiation of the megagametophyte in a subset of ovules. An additional defect of sin1 mutants is the production of an increased number of vegetative leaf and i...
متن کاملGibberellins Regulate Ovule Integument Development by Interfering with the Transcription Factor ATS.
Gibberellins (GAs) are plant hormones that regulate most plant life cycle aspects, including flowering and fruit development. Here, we demonstrate the implication of GAs in ovule development. DELLA proteins, negative GA response regulators, act as positive factors for ovule integument development in a mechanism that involves transcription factor ABERRANT TESTA SHAPE (ATS). The seeds of the dell...
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ژورنال
عنوان ژورنال: Development
سال: 2003
ISSN: 1477-9129,0950-1991
DOI: 10.1242/dev.00634