(1981b) Cytokinin biosynthesis in higher plants. In: Metabolism and Molecular Activities of Cytokinins (Ed. by J. Guern & C. Peaud-Lenoel), pp. 27-33. Springer-Verlag, Berlin.Maaß, H.; Klambt, D. Cytokinin biosynthesis in higher plants. Guern, J.; Péaud-Lenoël, C. ...
Current model of isoprenoid cytokinin biosynthesis pathway in higher plants. tZRDP, tZ riboside 5′-diphosphate; tZRTP, tZ riboside 5′-triphosphate; DZRMP, DZ riboside 5′-monophosphate; cZRMP, cZ riboside 5′-monophosphate; 1, phosphatase; 2, adenosine monophosphate 5-nucleotidase; 3, ...
Cytokinin biosynthetic mutants were impaired in growth enhancement under elevated CO2, demonstrating the involvement of de novo cytokinin biosynthesis for a robust growth response. We propose that plants employ a system to regulate growth in response to elevated CO2 in which photosynthetically generated ...
These results indicate that PIF4 plays an essential role in mediating the regulatory effect of CK on the transcriptions of CKRC1 and CKRC2 genes in the IPyA pathway of auxin biosynthesis. Auxin is an important phytohormone and influences many processes in plant growth and development, such as ...
biosynthesiscrown gallcytokininsdevelopmentgrowth regulatorsleavesmetabolismplant diseasesplant growth regulatorsseed germinationA critical element in understanding the physiological role of cytokinins is the knowledge of how plants control their cytokinin levels. Therefore, we need to know the pathway(s) and ...
The cytokinin biosynthesis is maximum in the meristematic regions (actively dividing and growing regions). Pathway for biosynthesis: ISOPRENOID pathway. The enzyme involved in the very 1st reaction in cytokinin synthesis: Adenosine phosphate-isopentenyltransferase (IPT) ...
The PBZ also induce an increment in photosynthetic pigments and carotenoids in plants. The enhancement in chlorophyll biosynthesis is attributed to the PBZ-mediated increase in cytokinin in PBZ-treated plants. Its applications have also been able to accelerate the rate of photosynthesis in crop plants...
Identification of Cytokinin Biosynthesis Genes in Arabidopsis: A Breakthrough for Understanding the Metabolic Pathway and the Regulation in Higher Plants Journal of Plant Growth RegulationSakakibara H,Takei K.Identification of cytokinin biosynthesis genes in Arabidopsis:A breakthrough for understanding the ....
BiosynthesiscytokininenzymesmetabolismTo maintain hormone homeostasis, the rate of cytokinin biosynthesis, interconversion, and degradation is regulated by enzymes in plant cells. Cytokinins can be synthesized via direct (de novo) or indirect (tRNA) pathways. In the de novo pathway, a cytokinin ...
Despite their importance, key genes controlling the biosynthesis of the two hormones have only been identified recently. Indole-3-acetic acid (IAA), the main auxin in plants, can be synthesized from tryptophan or using a tryptophan-independent pathway (Figure 1) [3, 4]. Several tryptophan-...