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《科学》 第391卷 第6786期 · 2026年2月12日 · 中文解读

二羟基己酸生物合成控制病原真菌的膨压

Dihydroxyhexanoic acid biosynthesis controls turgor in pathogenic fungi · N. Kumakura et al.
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研究发现PKS2和PBG13酶合成3,5-二羟基己酸聚合物,形成半透性屏障,对病原真菌附着胞产生膨压和侵染至关重要。
原文开头
Naoyoshi Kumakura1*, Takayuki Motoyama1, Keisuke Miyazawa2,3, Toshihiko Nogawa1, Julien Pernier4, Katsuma Yonehara1,5, Mayuko Sato1, Yumi Goto1, Kaori Sakai4, Nobuaki Ishihama1, Kaisei Matsumori2, Pamela Gan1†, Kiminori Toyooka1, Sandrine Lévêque-Fort6, Hiroyuki Koshino1, Takeshi Fukuma2,3, Richard J. O’Connell4, Ken Shirasu1,5* Many plant pathogenic fungi penetrate host surfaces mechanically, using turgor pressure generated by specialized infection cells called appressoria. These appressoria develop semipermeable cell walls and accumulate osmolytes internally to create turgor by osmosis. Although melanin is known to be important for turgor generation, the mechanism underlying wall semipermeability remains unclear. By using reverse genetics, we identified that the enzymes PKS2 and PBG13 are required for forming the semipermeable barrier in fungi causing anthracnose and rice blast diseases. …
摘自《科学》(Science)第391卷 第6786期 · 2026年2月12日,N. Kumakura et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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