The temperature-sensitive role of Cryptococcus neoformans ROM2 in cell morphogenesis.

The temperature-sensitive role of Cryptococcus neoformans ROM2 in cell morphogenesis.
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加密型新生虫ROM2在细胞形态发生中的温度敏感作用。

DOI:
10.1371/journal.pone.0000368
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发表时间:
2007-04-11
期刊:
影响因子:
3.7
通讯作者:
Mylonakis, Eleftherios
Mylonakis, Eleftherios
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Fuchs, Beth Burgwyn;Tang, Robin J.;Mylonakis, Eleftherios

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ROM2 与新型隐球菌毒力相关。我们检查了 ROM2 在新型隐球菌中的其他作用,发现 ROM2 在多种细胞功能中发挥作用,特别是在高温条件下。从形态上看,rom2突变细胞表现出“泪滴”状的形状并聚集在一起。细胞亚群在限制性生长条件下具有超伸长的表型。形态改变与集中在细胞外围的肌动蛋白缺陷以及微管组织异常有关。有趣的是,在低于 37°C 的温度下生长的细胞中没有观察到 ROM2 相关的细胞形态、细胞核位置、肌动蛋白和微管组织缺陷。这些结果表明,在新型隐球菌中,ROM2 在限制性温度条件下很重要,并且参与多种细胞维持功能。
ROM2 is associated with Cryptococcus neoformans virulence. We examined additional roles of ROM2 in C. neoformans and found that ROM2 plays a role in several cell functions specifically at high temperature conditions. Morphologically rom2 mutant cells demonstrated a “tear”-like shape and clustered together. A sub-population of cells had a hyperelongated phenotype at restrictive growth conditions. Altered morphology was associated with defects in actin that was concentrated at the cell periphery and with abnormalities in microtubule organization. Interestingly, the ROM2 associated defects in cell morphology, location of nuclei, and actin and microtubule organization were not observed in cells grown at temperatures below 37°C. These results indicate that in C. neoformans, ROM2 is important at restrictive temperature conditions and is involved in several cell maintenance functions.
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影响因子: 7.8
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