Auxin Controls Arabidopsis Adventitious Root Initiation by Regulating Jasmonic Acid Homeostasis
نویسندگان
چکیده
منابع مشابه
Auxin controls Arabidopsis adventitious root initiation by regulating jasmonic acid homeostasis.
Vegetative shoot-based propagation of plants, including mass propagation of elite genotypes, is dependent on the development of shoot-borne roots, which are also called adventitious roots. Multiple endogenous and environmental factors control the complex process of adventitious rooting. In the past few years, we have shown that the auxin response factors ARF6 and ARF8, targets of the microRNA m...
متن کاملArabidopsis IAR4 modulates auxin response by regulating auxin homeostasis.
In a screen for enhancers of tir1-1 auxin resistance, we identified two novel alleles of the putative mitochondrial pyruvate dehydrogenase E1alpha-subunit, IAA-Alanine Resistant4 (IAR4). In addition to enhancing the auxin response defects of tir1-1, iar4 single mutants exhibit numerous auxin-related phenotypes including auxin-resistant root growth and reduced lateral root development, as well a...
متن کاملAuxin transport promotes Arabidopsis lateral root initiation.
Lateral root development in Arabidopsis provides a model for the study of hormonal signals that regulate postembryonic organogenesis in higher plants. Lateral roots originate from pairs of pericycle cells, in several cell files positioned opposite the xylem pole, that initiate a series of asymmetric, transverse divisions. The auxin transport inhibitor N-1-naphthylphthalamic acid (NPA) arrests l...
متن کاملLocalized induction of the ATP-binding cassette B19 auxin transporter enhances adventitious root formation in Arabidopsis.
Adventitious roots emerge from aerial plant tissues, and the induction of these roots is essential for clonal propagation of agriculturally important plant species. This process has received extensive study in horticultural species but much less focus in genetically tractable model species. We have explored the role of auxin transport in this process in Arabidopsis (Arabidopsis thaliana) seedli...
متن کاملAuxin and cytokinin control formation of the quiescent centre in the adventitious root apex of arabidopsis
BACKGROUND AND AIMS Adventitious roots (ARs) are part of the root system in numerous plants, and are required for successful micropropagation. In the Arabidopsis thaliana primary root (PR) and lateral roots (LRs), the quiescent centre (QC) in the stem cell niche of the meristem controls apical growth with the involvement of auxin and cytokinin. In arabidopsis, ARs emerge in planta from the hypo...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2012
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.112.099119