Collection of Pure Phloem Sap from Wheat and its Chemical Composition
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概要
- 論文の詳細を見る
Wheat Phloem sap was collected without contamination from the stylets of small brown planthopper severed by a YAG laser beam. The sugar, amino acid and inorganic ion composition was determined using only one μl of the sap. The sap had a high sucrose level (251 mM), and also a high K^+ level (299 mM). Total amino acid compounds in the sap reached 262 mM. The dominant amino acids were glutamic acid, aspartic acid and serine, while r-amino butylic acid was absent. The major anion in the sap was Cl^- and its concentration was 25.1 mM. Nitrate was also present at a concentration of 8.1 mM. These results suggested that the sap obtained from the cut end of the stylets of the small brown planthopper was a phloem origin of wheat.
- 日本植物生理学会の論文
著者
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Chino Mitsuo
Department Of Agricultural Chemistry Faculty Of Agriculture The University Of Tokyo
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Hayashi Hiroaki
Department Of Agricultural Cheinistry Faculty Of Agriculture University Of Tokyo
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