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한국식물학회 / v.34, no.4, 1991년, pp.317-323 
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옥수수(Zea mays L.) 자엽초 절편에서 Naphtylphthalamic Acid에 대한 오옥신 이동계의 감지적응
( Sensory Adaptation in Polar Auxin Transport System to Naphtylphthalamic Acid in Corn Coleoptile Segments ) |
| 윤인선; 연세대학교 이과대학 생물학과;
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| Partial recovery in auxin transport capacity from inhibition by N-naphthylphthalamic acid (NPA) was observed when corn coleoptile segments were subjected to a prolonged NPA treatment. Kinetic data indicated that the recovery time is a function of the concentration of NPA applied. Desensitization to NPA was also seen in tissue slices where NPA increased net uptake of auxin, indicating that the apparant adaptation in the auxin transport system did not results possibly from auxin accumulated during transport inhibition. Studies on in vitro binding of NPA to membrane vesicles isolated from the coleoptile indicated that preincubation of the tissue with NPA resulted in the reduced binding activity. Scatchard analysis of the data indicated that this was due to decreases in the number of NPA binding sites. The possibility of causal relationship of modified NPA receptors to the sensory adaptation in auxin transport observed in coleoptile segments will be discussed. |
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| 키워드 |
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Journal of Plant Biology / v.34, no.4, 1991년, pp.317-323
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199111920115821)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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