kinin

Thân thiện

A scientist adds a drop of kinin solution to a plant tissue culture.

Definition

Noun 1. A type of plant hormone: Any of a class of organic compounds that function as plant hormones. Their primary roles are to stimulate cell division (cytokinesis) in plant roots and shoots and to delay the aging (senescence) of leaves.

Usage

• As a subject: "A kinin is crucial for regulating plant growth."
• As an object: "Scientists applied the kinin to the plant tissue to observe its effect."
• With modifiers: "The synthetic kinin promoted rapid cell division."

Examples

• "The presence of kinin in the growing tip helps coordinate development."
• "By slowing leaf senescence, kinin helps keep plants photosynthetically active for longer."
• "The experiment compared the effects of auxin and kinin on root formation."

Advanced Usage

• In scientific literature: The term is used precisely in botany and plant physiology. It is often discussed alongside other plant hormones like auxins, gibberellins, and abscisic acid.
  • Example: "The interaction between kinin and auxin determines the pattern of organ development."

Variants and Related Words

• Cytokinin: This is a more specific and commonly used synonym for kinin in modern plant biology.
• Phytohormone / Plant hormone: The broader category to which kinins belong.

Synonyms

• Cytokinin (the preferred modern term)
• Plant growth regulator (broader term)

Notes on Meaning

• Important Distinction: In animal physiology, the term "kinin" can refer to a different class of polypeptides (e.g., bradykinin) that mediate inflammation and blood pressure. In a purely botanical context, "kinin" refers exclusively to the plant hormone. The more precise term "cytokinin" avoids this potential confusion.

Học thuật

Noun

1. any of a class of plant hormones that promote cell division and delay the senescence of leaves

Từ đồng nghĩa

• cytokinin