Pronunciation: [kˈa͡ɪntɪnz] (IPA) 
Kinetins are plant hormones that promote cell division and growth. The word "kinetin" is spelled with a /k/ sound, as in "kite," followed by the vowel sound /ɪ/ as in "it." The second syllable begins with a nasal consonant /n/ followed by the vowel sound /ɛ/ as in "pet." The final syllable begins with the consonant sound /t/ and ends with the vowel sound /ɪ/ as in "it." The IPA phonetic transcription of "kinetin" is ˈkaɪ.nə.tɪn.
Kinetins are a type of plant hormone that belong to the class of cytokinins. They were first isolated from corn kernels, but are found in a variety of plants. Kinetins primarily play a crucial role in regulating various physiological processes in plants, including cell division and differentiation. These hormones are responsible for stimulating cell division, promoting shoot development, and preventing the aging process in plants.
Kinetins are commonly synthesized in the meristematic tissues of plants, where active cell division occurs. They are transported to other parts of the plant, where they exert their effects. Kinetins work in conjunction with other plant hormones, such as auxins, to control growth and development in plants. They help in maintaining the balance between cell division and cell differentiation, ensuring proper plant growth.
In addition to their role in growth regulation, kinetins also have several other important functions. They promote the growth of lateral buds, breaking apical dominance and encouraging branching. Kinetins also aid in the formation of chloroplasts and chlorophyll, which are crucial for photosynthesis. Furthermore, they delay senescence, or the aging process, in plant tissues, thereby extending the lifespan of plants and increasing their overall productivity.
Overall, kinetins are vital plant hormones that play a significant role in regulating growth, development, and aging processes in plants. Their ability to stimulate cell division, promote shoot development, and delay senescence make them valuable tools in agricultural practices, horticulture, and plant tissue culture applications.
The word "kinetins" is derived from the term "kinetin", which itself is derived from the word "kinetics". The term "kinetics" comes from the Greek word "kinēsis", meaning "movement". In the context of the word "kinetin", the suffix "-in" is added to denote a specific chemical or molecule. Kinetin is a plant hormone or growth factor that affects cell division and stimulates growth. The plural form "kinetins" is used to refer to multiple varieties or derivatives of kinetin.
