Cytokinins definition biology

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WebCytokinins (CKs) play a crucial role in various phases of plant growth and development, but the basic molecular mechanisms of their biosynthesis and signal transduction only …

Cytokinin signaling in plant development - The Company of …

WebSep 11, 2024 · It’s the phenomenon in plants where a main shoot dominates and inhibits the outgrowth of other shoots. In plants with strong apical dominance, main shoot tip damage or shoot tip loss, caused by pruning or herbivory, leads to the outgrowth of compact embryonic shoots (axillary buds) into branches. WebMorphogenesis. Counteraction of apical dominance. Breaking of seed dormacy. Seed germination. Delay in senescence. Parthenocarpy in some fruits. Induce stomatal opening. how do doctors insert a catheter

Cytokinin Definition and Examples - Biology Online …

WebCytokinins These are produced in the regions where cell division occurs; mostly in the roots and shoots. They help in the production of new leaves, lateral shoot growth, chloroplasts in leaves etc. They help in overcoming apical dominance and delay ageing of leaves. Also Read: Cytokinins Functions of Cytokinins Break bud and seed dormancy. Webcytokinin: [noun] any of various plant growth substances (such as kinetin) that are usually derivatives of adenine. Webauxin, any of a group of plant hormones that regulate growth, particularly by stimulating cell elongation in stems. Auxins also play a role in cell division and differentiation, in fruit development, in the formation of roots from cuttings, in the inhibition of lateral branching (apical dominance), and in leaf fall (abscission). how do doctors freeze your eggs

Cytokinins: History, Function and Uses - Biology Discussion

30.21: Plant Sensory Systems and Responses - Biology LibreTexts

Webcytokinin, any of a number of plant hormones that influence growth and the stimulation of cell division. Cytokinins are synthesized in the roots … WebNational Center for Biotechnology Information how do doctors flush your systemWebCytokinins. The effect of cytokinins was first reported when it was found that adding the liquid endosperm of coconuts to developing plant embryos in culture stimulated their growth. The stimulating growth factor was found … how much is gas in nova scotia

"WebApr 13, 2024 · Cytokinins (CKs) are produced by endophytic bacteria to enhance plant cell divisions and to tolerate environmental stresses including high-salt concentrations [128,129]. Indeed, the plant’s inoculation with microbes producing phytohormones including cytokinins helped to inhibit the adverse effects of salt and contributed to the amelioration ... " - Cytokinins definition biology

Cytokinins definition biology

Phytohormone - an overview ScienceDirect Topics

WebCytokinins (CKs) play a crucial role in various phases of plant growth and development, but the basic molecular mechanisms of their biosynthesis and signal transduction only recently became clear. The progress was achieved by identifying a series of key genes encoding enzymes and proteins controllin … WebNov 27, 2015 · Cytokinins were originally defined as chemicals that induce cell proliferation and trigger callus differentiation to shoot when applied with auxins, but now it is known that cytokinins play a key role in many …

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WebMay 4, 2024 · Cytokinins are plant hormones that promote cytokinesis (cell division) are derivatives of the purine adenine. (They are not to be confused with cytokines.) The … WebTypes of Plant Hormones. There are five general classes of hormones: auxins, cytokinins, gibberellins, ethylene, and abscisic acid. Auxins. An auxin, indole‐3‐acetic acid (IAA), was the first plant hormone identified. It is manufactured primarily in the shoot tips (in leaf primordia and young leaves), in embryos, and in parts of developing ...

WebFeb 27, 2024 · The phytohormone cytokinin plays diverse roles in plant development, influencing many agriculturally important processes, including growth, nutrient responses … WebOct 13, 2024 · Cytokinins are a group of hormones that promote cell division in plant roots and shoots and the growth of buds. These hormones have been found in all complex plants as well as mosses, fungi, and...

WebFeb 19, 2024 · Cytokinins (CKs) influence various traits of plant growth, development and physiology such as seed germination, apical dominance, flower and fruit development, leaf senescence and plant-pathogen-interactions etc. CKs are isoprenoid substituted adenines molecule. Isopentenyltransferases (IPTs) is the first enzyme involved in catalyzing ... WebIn this chapter, auxins, gibberellins (GAs), cytokinins, abscisic acid, brassinosteroids (BRs), jasmonic acid-related compounds, and ethylene are described as established plant hormones, while polyamines and phenolic compounds are not included, according to the definition used in the previous edition of the book Comprehensive Natural Products ...

WebJan 28, 2024 · The cytokinins are a group of plant hormones which interact directly with the auxins. In doing so, they direct cell differentiation and various aspects of cell metabolism. …

WebPhysiological effects and application of cytokinins. Cell division and cell enlargement; Formation of interfascicular cambium; Morphogenesis; Counteraction of apical … how much is gas in murfreesboro tnWebNov 27, 2015 · Cytokinins are a well-studied family of plant hormones. In the 1950s, Skoog and Miller first determined the structural formula of a cytokinin, 6-furfurylaminopurine, a substance isolated from a herring … how much is gas in navarre floridaWebcytokinin. noun. cy· to· ki· nin ˌsīt-ə-ˈkī-nən. : any of various plant growth substances that are usually derivatives of adenine. how much is gas in nova scotia todayWebCytokinins (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 … how much is gas in ontarioWebOct 30, 2024 · Fox (1969) has defined cytokinins as chemicals composed of one hydrophilic adenine group of high specificity and one lipophilic group without specificity. Chemically, kinetin (C10H9ON5) is 6-furfurylaminopurine. Cytokinins occur in higher plants, diatoms, red and brown algae, mosses. how much is gas in new orleansWebJan 9, 2024 · Cytokinins are inactivated by enzymes encoded by the CYTOKININ OXIDASE/DEHYDROGENASE (CKXs) gene family that catalyzes the removal of the N 6 … how do doctors measure cervix dilationWebcytokinin [ sahy-t uh- kahy-nin ] noun Biochemistry. any of a class of plant hormones, produced by the roots and traveling upward through the xylem, that promote tissue growth and budding and, on application, retard plant senescence. Compare kinetin, zeatin. … Cytokinesis definition, the division of the cell cytoplasm that usually follows mitotic or … Cytokine definition, a type of small protein, as interferon, secreted by certain cells, … how much is gas in netherlands