Simulated Low-gravity Environments and Respiratory Metabolism in Avena Seedlings | Zendy

R. R. Dedolph | Zendy; B. R. Wilson | Zendy; W. Chorney | Zendy; J. J. Breen | Zendy

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Simulated Low-gravity Environments and Respiratory Metabolism in Avena Seedlings

Author(s) -

R. R. Dedolph,

B. R. Wilson,

W. Chorney,

J. J. Breen

Publication year - 1966

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.41.9.1520

Subject(s) - clinostat , avena , coleoptile , gravitropism , respiration , botany , phototropism , biology , chemistry , metabolism , agronomy , biochemistry , physics , arabidopsis , mutant , optics , gene , blue light

Using horizontal and vertical axis clinostats and sand-grown oat seedlings (Avena sativa), it was found that horizontal clinostat rotation at 2 rpm increased respiration and inorganic and organic phosphorus content of seedlings. Increased coleoptile geotropism and root growth are attributed to rotational nullification of the directional component of the gravitational stimulus. These growth modifications are mechanistically explicable by the relationship between plant metabolism and auxin concentration in these organs.

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