WebNov 26, 2024 · Which plant growth regulator is the derivative of carotenoids? (a) Auxin (b) Gibberelic acid (c) Cytokinin (d) Abscisic acid. Answer. Answer: (d) Abscisic acid Explanation: Abscisic acid are the derivatives of carotenoids. Question 18. Typical plant growth shows _____ curve. WebComparative genomic analyses were performed to trace the origin, evolution and diversification of the critical regulatory networks linking CK signaling and abiotic stress. We found that the production of CKs and their derivatives, pathways of signal transduction and drought-response root growth regulation are evolutionarily conserved in land ...
Antagonistic Effects of Triazolo[4,5-d]pyrimidine and Pyridylurea ...
WebIn 1963, Letham isolated 6- (4-hydroxy-3-methylbut-trans-2-enylamino) purine from immature kernels of Zea mays and named it ‘zeatin’. Other cytokinins identified from the … WebModifying the cytokinin content in plants is a means of improving plant productivity. Here, we report the development and biological activity of compound TD-K (1-(furan-2-ylmethyl)-3-(1,2,3-thiadiazol-5-yl)urea)which is related to thidiazuron. TD-K—which exhibited extremely high antisenescence activity in the wheat leaf bioassay—and INCYDE (2-chloro-6-(3 … editing paragraphs 9th grade printable
Novel Cytokinin Derivatives Do Not Show Negative Effects on …
Cytokinins (CK) are a class of plant hormones that promote cell division, or cytokinesis, in plant roots and shoots. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence. There are two types of cytokinins: adenine-type cytokinins represented by kinetin WebThe first cytokinin discovered was an adenine (aminopurine) derivative named ‘kinetin’ (6-furfuryl aminopurine), which was isolated as a DNA degradation product. The first … WebApr 9, 2024 · Cytokinin Oxidase Regulates Rice Grain Production. ... (tZ) isopentenyladenine(iP) substitutedadenine derivatives generallycontain isoprenoidside chain (31). CKX preferentially irreversiblydegrades nucleo- base CKs isoprenoidside chains (31). catabolicenzyme probably plays principalrole controllingCK levels planttissues … editing paragraphs for 3rd grade