玉米素（Zeatin）是一种有机化合物，分子式为C10H13N5O。 外观为白色结晶或粉末，难溶于水，溶于醇和DMF。 无毒，小鼠急性口服LD50>1000毫克/千克。 是植物体内天然存在的一种天然细胞分裂素。 它是从甜玉米灌浆期的籽粒中提取并结晶出的第1个天然细胞分裂素。

Zeatin is a cytokinin derived from adenine, which occurs in the form of a cis - and a trans - isomer and conjugates. Zeatin was discovered in immature corn kernels from the genus Zea. It promotes growth of lateral buds and when sprayed on meristems stimulates cell division to produce bushier plants. [citation needed]

Zeatin, a DMAPP derived plant hormone is biosynthesized via an N -prenylation of adenosine mono-phosphate, catalyzed by the enzyme adenosine phosphate-isopentenyltransferase (Kamada-Nobusada and Sakakibara, 2009), to form the zeatin precursor N6 - (Δ 2 -isopentenyl)adenine riboside phosphate (Fig. 5).

反玉米素（trans-Zeatin, tZ） ‌ ‌ ： 1. 促进愈伤组织发芽（须和生长素配用），浓度为1 ppm； 2. 促进座果，玉米素100 ppm+GA3 500 ppm+NAA20 ppm，花后10、25、40天喷果； 3. 延缓蔬菜的叶片发黄，20 ppm喷洒； 反玉米素核苷（trans-Zeatin Riboside, tZR） ‌ ： 1.

玉米素（Zeatin，ZT）： 是一种天然植物细胞分裂素（cytokinins, CKs），广泛存在于高等植物中。 玉米素是从甜玉米灌浆期的籽粒中提取并结晶出的第1个天然细胞分裂素，后来也在椰汁中发现玉米素及其衍生物（玉米素核苷）。

While various labs had shown cell division-inducing activity in a variety of plant extracts for over a decade, the identification of zeatin (Z) in 1964, the first known naturally occurring cytokinin, belongs to Letham and co-workers. Using extracts ...

Zeatin is a member of the cytokinin family, a class of phytohormones involved in various processes of growth and development in plants. Most abundant cytokinins are adenine-type, …

2020年2月22日 · 玉米素（Zeatin）是存在于高等植物的一种天然植物细胞分裂素（cytokinins, CKs），最初是从幼嫩的玉米芯中发现分离出来的，后来椰汁中也发现该物质及其衍生物。

Zeatin and its derivatives are the most important group of isoprenoid CKs. Zeatin occurs as two isomers: while trans-zeatin (transZ) was found to be a bioactive substance, cis-zeatin (cisZ) was reported to have a weak biological impact. Even though cisZ derivatives are abundant in various plant materials their biological role is still unknown.

2023年2月15日 · While various labs had shown cell division-inducing activity in a variety of plant extracts for over a decade, the identification of zeatin (Z) in 1964, the first known naturally occurring cytokinin, belongs to Letham and co-workers.