Strigolactone-Based Node-to-Bud Signaling May Restrain Shoot Branching in Hybrid Aspen
نویسندگان
چکیده
منابع مشابه
Strigolactone regulation of shoot branching in chrysanthemum (Dendranthema grandiflorum)
Previous studies of highly branched mutants in pea (rms1-rms5), Arabidopsis thaliana (max1-max4), petunia (dad1-dad3), and rice (d3, d10, htd1/d17, d14, d27) identified strigolactones or their derivates (SLs), as shoot branching inhibitors. This recent discovery offers the possibility of using SLs to regulate branching commercially, for example, in chrysanthemum, an important cut flower crop. T...
متن کاملInteractions between auxin and strigolactone in shoot branching control.
In Arabidopsis (Arabidopsis thaliana), the carotenoid cleavage dioxygenases MORE AXILLARY GROWTH3 (MAX3) and MAX4 act together with MAX1 to produce a strigolactone signaling molecule required for the inhibition of axillary bud outgrowth. We show that both MAX3 and MAX4 transcripts are positively auxin regulated in a manner similar to the orthologous genes from pea (Pisum sativum) and rice (Oryz...
متن کاملRoles for auxin, cytokinin, and strigolactone in regulating shoot branching.
Many processes have been described in the control of shoot branching. Apical dominance is defined as the control exerted by the shoot tip on the outgrowth of axillary buds, whereas correlative inhibition includes the suppression of growth by other growing buds or shoots. The level, signaling, and/or flow of the plant hormone auxin in stems and buds is thought to be involved in these processes. ...
متن کاملDiscovery of Shoot Branching Regulator Targeting Strigolactone Receptor DWARF14
DWARF14 (D14) is a strigolactone receptor that plays a central role in suppression of shoot branching, and hence is a potential target to increase crop productions and biomass. Recently, we reported a fluorescence turn-on probe, Yoshimulactone Green (YLG), which generates a strong fluorescence upon the hydrolysis by D14-type strigolactone receptors. Herein, we applied a YLG-based in vitro assay...
متن کاملAuxin and strigolactone signaling are required for modulation of Arabidopsis shoot branching by nitrogen supply.
The degree of shoot branching is strongly affected by environmental conditions, such as nutrient availability. Here we demonstrate that nitrate limitation reduces shoot branching in Arabidopsis (Arabidopsis thaliana) both by delaying axillary bud activation and by attenuating the basipetal sequence of bud activation that is triggered following floral transition. Ammonium supply has similar effe...
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ژورنال
عنوان ژورنال: Plant and Cell Physiology
سال: 2019
ISSN: 0032-0781,1471-9053
DOI: 10.1093/pcp/pcz170