The PaAlr1 magnesium transporter is required for ascospore development in Podospora anserina

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• 作者：Pierre Grognet ; Herv¨¦ Lalucque ; Philippe Silar
• 关键词：Filemantous ascomycetes ; Metal ions transport ; Spore differentiation
• 刊名：Fungal Biology
• 出版年：2012
• 出版时间：October, 2012
• 年：2012
• 卷：116
• 期：10
• 页码：1111-1118
• 全文大小：1076 K

文摘

The PaAlr1 gene encoding a putative plasma membrane magnesium (Mg) transporter in Podospora anserina was inactivated. The PaAlr1^¦¤ mutants showed sensitivity to deprivation and excess Mg²⁺ and Ca²⁺. They also exhibited an autonomous ascospore maturation defect. Mutant ascospores were arrested at an early stage when they contained two nuclei. These data emphasize the role of Mg ions during sexual development in a filamentous fungus.