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한국식물학회 / v.14, no.2, 1971년, pp.11-14 
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화분관 In Vitro 생장의 굴수성에 대하여
( Tropisms of Pollen-Tubes In Vitro ) |
| 곽병화; 고려대학교 농과대학 원예학과;
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| Zephyranthes candida, Narcissus pseudonarcissus and Crinum asiaticum pollen were placed near their pistil parts respectively on agar cultural media(microslides) containing 10% sucrose and 100mg/l botic acid plus 1% agar with or without calcium and some other calciumsupporting inorganic salts. If fresh pistils (100% moisture) were used pollen grew toward their pistil parts, showing "positive" tropism. This was also true when combinations among three different species were made. Pollen tubes grew away from the pistils if they were dried (below 10% moisture), showing "negative" tropism. Pollen could not show any tropic growth and thus grew at random of all directions if the pistil parts were incompletely dried (approximately 50% moisture). The similar tropic responses of pollen-tube growth with the three species could be demonstrated with etiehr wet or dried tooth-pick segments. Calcium jons in the basic medium merely promated pollen-tube growth and so either "positive" or "negative" tropism became rather distinctive, but they were not tropically active. Pollen tubes grow toward pistil parts with more moisture content and seem to be hydrotropically sensitive. This was assumed due to the cohesive force existing in water molecules.esive force existing in water molecules. |
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| 키워드 |
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Journal of Plant Biology / v.14, no.2, 1971년, pp.11-14
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO197111920111659)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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