This invention further relates to transgenic plants having enhanced levels of cytokinin expression wherein the transgenic plant exhibits useful characteristics, such as improved seed size, decreased tip kernel abortion, increased seed set during unfavorable environmental conditions, or stability of yield. ...
Cytokinin (CK) signaling pathways were believed to be restricted to terrestrial plants. However, the identification of CK receptor homologs in phytopathogenic bacteria, cyanobacteria, and early diverging fungi has recently been reported. CK signaling in prokaryotic and non-plant eukaryotic organisms sheds...
One-step and two-step pathways are proposed to synthesize cytokinin in plants. The one-step pathway is mediated by LONELY GUY (LOG) proteins. However, the enzyme for the two-step pathway remains to be identified. Here, we show that quantitative trait locusGY3may boost grain yield by more ...
Plantsrequire growth hormones for their regulated growth.Plant growth hormones or regulators(PGRs) are smallorganic compoundsthat are synthesized byplant cellsand tissues. These PGRs are active in very small concentrations. They can serve both purposes of promoting or inhibiting the growth of plants. ...
Cytokinin derivatives in plants generally occur as nucleobases (free bases) and their conjugates with various moieties, including nucleosides, nucleotides (Fig. 3.1), and glycosides (O- and N-glycosides). In most cases, the nucleobases function as the active form and the nucleosides are inactive ...
Role and function of cytokinin oxidase in plants (CK oxidase) is widely distributed in plants and is the only enzyme that has been shown unequivocally to catalyze the catabolism of specific cytokinins (... RJ Jones,BMN Schreiber - 《Plant Growth Regulation》 被引量: 189发表: 1997年 Cytokinin...
To further assess the importance of CKX2 in GSA establishment, we disrupted CKX activity in the reference accessionCol-0. Treatments with the CKX inhibitor INCYDE19phenocopied theckx2-1loss-of-function mutant, both displaying more horizontal LRs when compared to its respective controls (Fig.2f,...
gametophyte,andorganogenesisandphyllotaxyintheshoot.INTRODUCTIONFromtheirinitialdiscoveryasinducersofplantcelldivisionincul-ture,cytokininfunctionhasbeenlinkedtothatofauxin(Milleretal.,1955,1956).Subsequentstudiesrevealedaplethoraofprocessesregulatedbytheirmutualcontrol.Inmanycases,theregulatoryinteractionsbetweenthesetwo...
The directional and sequential flow of cytokinin in plants is organized by a complex network of transporters. Genes involved in several aspects of cytokinin transport have been characterized; however, much of the elaborate system remains elusive. In this study, we used a transient expression system ...
Microbial CK production has so far only been linked to PGP21,22 and suggested as a mechanism for increasing abiotic stress tolerance in plants23. Considering the widespread CK production by beneficial microbes and recent advances in understanding CK function in plant resistance, we analysed the ...