动力素和Zeatin有什么区别

Thekey differencebetween kinetin and zeatinis that kinetin is a synthetic form ofcytokinin激素，而Zeatin是细胞分裂素激素的天然形式。

Cytokinins are a class ofplant hormonesthat promote cell division or细胞因子在芽和根中。细胞分裂素主要参与细胞生长和细胞分化。另外，细胞分裂素还会影响根尖的优势，腋芽的生长和叶片衰老。有两种类型的细胞分裂素：腺嘌呤型细胞分裂素（动力学，Zeatin，6-苯甲酰胺）和苯脲型细胞分裂素（Diphenylurea和thidiazuron（TDZ）。动力蛋白和Zeatin是两种形式的腺嘌呤 - 蛋白质蛋白质蛋白。

内容

1.Overview and Key Difference
2.什么是动力素
3.什么是Zeatin
4.相似之处 - 动力学和Zeatin
5.Kinetin vs Zeatin in Tabular Form
6.摘要 - 动力素vs Zeatin

什么是动力素?

Kinetin is a synthetic form of cytokinin and a plant hormone. It promotes cell division. It was originally isolated by Carols Miller and Skoog as a compound from autoclaved herring fish sperm DNA. As this compound had cell division promoting activity in plants, it was given the name kinetin. However, this cell division-promoting activity was induced when auxin was present in the medium. Kinetin is normally used in plant tissue culture experiments to induce the formation of callus in conjunction with auxin. It is also used to regenerate shoot tissues from callus when there is a lower auxin concentration in the medium.

Kinetin was considered an artificial compound produced from the deoxyadenosine residues in herring DNA. Therefore, it was thought that kinetin does not exist naturally. However, several research studies have shown that they exist in humans and various plants. The mechanism of production of kinetin from DNA is through the production of furfural. Furfural is an oxidation product of deoxyribose sugar in DNA. The quenching of furfural is by adenine bases converting it to N6-furfuryladenine (kinetin). Furthermore, kinetin is also widely used in producing new plants from tissue cultures maintained in laboratories.

什么是Zeatin?

Zeatin is a naturally occurring form of cytokinin hormone derived from adenine. It normally occurs in the form of a顺式和transisomer. It can also occur as a conjugate. Zeatin was discovered in immature corn kernels from the genusZea. Zeatin is used to promote the growth of lateral buds. Moreover, when zeatin is sprayed on meristems, it stimulates cell division to produce bushier plants. Zeatin is naturally occurring in many plant extracts and is also present in coconut milk as an active ingredient. 6-(γ,γ-Dimethylallylamino)purine is a precursor of zeatin.

Zeatin has several anti-aging effects on human skin fibroblasts. Furthermore, the other application of zeatin includes promoting callus initiation when combined with auxin, promoting fruit set, retarding yellowing of vegetable, causing auxiliary stems to grow and flower, stimulating seed germination, seeding growth, and promoting the resistance of tobacco against the bacterial pathogenPseudomonas syringae.

What are the Similarities Between Kinetin and Zeatin?

• 动力素和Zeatin是两种类型的腺嘌呤型细胞分裂素。
• Both forms are derived from DNA.
• Both forms induce callus growth in the presence of auxin.
• They have various important applications.

动力素和Zeatin有什么区别？

激动素是一种人工合成的细胞分裂素激素,while zeatin is a naturally occurring form of cytokinin hormone. Thus, this is the key difference between kinetin and zeatin. Furthermore, the precursor for kinetin is furfural whereas the precursor for zeatin is 6-(γ,γ-Dimethylallylamino)purine.

The below infographic presents the differences between kinetin and zeatin in tabular form for side-by-side comparison.

摘要 - 动力素vs Zeatin

Cytokinins are plant-specific chemical messengers or hormones that play a central role in the regulation of the plant cell cycle and numerous developmental processes. Kinetin and zeatin are two adenine-type cytokinins. Kinetin is a synthetic form of cytokinin hormone, while zeatin is a naturally occurring form of cytokinin hormone. So, this summarizes the difference between kinetin and zeatin.

Reference:

1.“”Kinetin – An Overview。”ScienceDirect主题。
2. “Zeatin。”ACS | American Chemical Society.

Image Courtesy:

1.“”Kinetine” fjeojf - 自己的作品(CC BY-SA 4.0)via Commons Wikimedia
2. “Зеатин” By Зеатин – Own work(CC BY-SA 4.0)via Commons Wikimedia