Does Ethylene Mediate Root Growth Inhibition by Indole-3-Acetic Acid?
نویسندگان
چکیده
منابع مشابه
Does ethylene mediate root growth inhibition by indole-3-acetic Acid?
The effects of ethylene and of indole-3-acetic acid (IAA) on growth of excised pea root sections have been compared under a variety of conditions. After 16 hours treatment the inhibitory action of IAA is fully reversible on transfer of the root sections to IAA-free solutions. In contrast, inhibition by ethylene is almost totally irreversible. IAA inhibits growth from zero time; ethylene is gene...
متن کاملExplanation of the Inhibition of Root Growth Caused by Indole-3-Acetic Acid'
Summii1stary. Low concentrations of indole-3-acetic acid inhibit the growth of pea root sections by indticing the formation of the growth regtilator, ethylene gas. Ethylene is produced within 15 to 30 minutes after inidole-3-acetic acid is applied and roots begin to swell immediately after they are exposed to the gas. Carbon dioxide competitively inhibits ethylene action in roots, impedles thei...
متن کاملAn explanation of the inhibition of root growth caused by indole-3-acetic Acid.
Low concentrations of indole-3-acetic acid inhibit the growth of pea root sections by inducing the formation of the growth regulator, ethylene gas. Ethylene is produced within 15 to 30 minutes after indole-3-acetic acid is applied and roots begin to swell immediately after they are exposed to the gas. Carbon dioxide competitively inhibits ethylene action in roots, impedes their geotropic respon...
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Cycloheximide inhibits polar indoleacetic acid transport in midrib tissues of leaves of citrus (Citrus sinensis [L.] Osbeck) and poplar (Populus deltoides Bartr.) as measured by the donor-receiver agar cylinder technique. It appears that the mechanism of auxin transport inhibition by cycloheximide consists in arresting protein synthesis and not in the disruption of energy flow. The interpretati...
متن کاملEthylene formation in pea seedlings; its relation to the inhibition of bud growth caused by indole-3-acetic Acid.
Indole-3-acetic acid stimulates ethylene production in the nodal region of pea stems, and the gas inhibits bud growth. At all concentrations of IAA there is a close correlation between the intensity and duration of ethylene production and the bud inhibition which results. Kinetin reverses the inhibitory actions of ethylene and IAA on bud growth. It is concluded that auxins suppress bud developm...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1968
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.43.9.1375