Activating root nodule organogenesis
نویسندگان
چکیده
منابع مشابه
Signals in Root Nodule Organogenesis and Endocytosis of Rhizobium.
The rhizobia comprise a diverse group of organisms that elicit hypertrophic growth on the roots of legume plants to form a new organ, the root nodule, which they inhabit to fix nitrogen. This endosymbiotic association makes legume plants autotrophic for external nitrogen, an essential nutrient for plant growth. Because the interaction with rhizobia is highly beneficial, legume plants have evolv...
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Legume root nodules originate from differentiated cortical cells that reenter the cell cycle and form organ primordia. We show that perception of the phytohormone cytokinin is a key element in this switch. Mutation of a Lotus japonicus cytokinin receptor gene leads to spontaneous development of root nodules in the absence of rhizobia or rhizobial signal molecules. The mutant histidine kinase re...
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Legumes have evolved symbiotic interactions with rhizobial bacteria to efficiently utilize nitrogen. Recent progress in symbiosis has revealed several key components of host plants required for nitrogen-fixing nodule organogenesis, in which complicated metabolic and signaling pathways in the host plant are reprogrammed to generate nodules in the cortex upon perception of the rhizobial Nod facto...
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Wound-induced adventitious root (AR) formation is a requirement for plant survival upon root damage inflicted by pathogen attack, but also during the regeneration of plant stem cuttings for clonal propagation of elite plant varieties. Yet, adventitious rooting also takes place without wounding. This happens for example in etiolated Arabidopsis thaliana hypocotyls, in which AR initiate upon de-e...
متن کاملSoybean root nodule acid phosphatase.
Acid phosphatases are ubiquitous enzymes that exhibit activity against a variety of substrates in vitro, although little is known about their intracellular function. In this study, we report the isolation, characterization, and partial sequence of the major acid phosphatase from soybean (Glycine max L.) root nodules. The phosphatase was purified predominantly as a heterodimer with subunits of 2...
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ژورنال
عنوان ژورنال: Nature Reviews Microbiology
سال: 2014
ISSN: 1740-1526,1740-1534
DOI: 10.1038/nrmicro3251