FEBS Letters | |
Characterization of a general amino acid permease from Hebeloma cylindrosporum | |
Frommer, Wolf B1  Benjdia, Mariam1  Wipf, Daniel1  Tegeder, Mechthild1  | |
[1] ZMBP, Plant Physiology, Auf der Morgenstelle 1, D-72076 Tübingen, Germany | |
关键词: Amino acid transport; Aspartate uptake; Hebeloma cylindrosporum; | |
DOI : 10.1016/S0014-5793(02)03271-4 | |
学科分类:生物化学/生物物理 | |
来源: John Wiley & Sons Ltd. | |
【 摘 要 】
Besides a role in phosphate supply, ectomycorrhizas play a crucial role in nitrogen nutrition of plants. The ectomycorrhizal association between Hebeloma cylindrosporum and Pinus pinaster serves as a model system accessible to molecular manipulation. Hebeloma mycelium is able to take up and use amino acids as the sole nitrogen source. Suppression cloning allowed identification of a Hebeloma transporter (HcGAP1) mediating histidine uptake. HcGAP1 mediates secondary active uptake of a wide spectrum of different amino acids. The secondary active transport mechanism together with the expression in hyphae, but not in mycorrhizas, indicate a role in uptake of organic nitrogen from the soil.
【 授权许可】
Unknown
【 预 览 】
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RO201912020312187ZK.pdf | 370KB | download |