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在ascomycete macrolichens的皮层中的基底菌类酵母
Toby Spribille1, Veera Tuovinen2, Philipp Resl3
1Institute of Plant Sciences, NAWI Graz, University of Graz, 8010 Graz, Austria. Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA. toby.spribille@mso.umt.edu.
概括
许多藏着一个秘密:除了已知的真菌和藻类之外, 这些酵母会影响的外观, 挑战长期以来的"一个真菌,一个真菌"模式.
科学领域:
- 菌群学
- 共生生物学
- 类植物
背景情况:
- 传统上被定义为一个单一的真菌 (通常是ascomycete) 和一个光合作伙伴 (藻类或菌) 之间的共生关系.
- 这种"一种真菌,一种真菌"模式已经被广泛接受了140多年,其他真菌被认为是寄生虫或内生菌.
- 类表型的不明原因变异一直存在,这表明人们对它们复杂的生物学的理解存在差距.
研究的目的:
- 除了已确定的菌体与光合作体关系之外,还要研究菌体的成分.
- 确定是否有其他真菌与特定的菌物种相连.
- 探索这些额外的真菌在表型和变异中的潜在作用.
主要方法:
- 对不同地理位置的各种常见鱼物种进行分子和显微镜分析.
- 在状体内存在的真菌系的识别,特别是在皮层中.
- 鉴定到的真菌数量与观察到的表型特征之间的相关性分析.
主要成果:
- 许多常见的虫不仅是已知的虫和光合作体的宿主,而且还包括特定的虫酵母.
- 这些基底菌类酵母嵌入皮层,这种结构以前被认为仅由菌类细胞组成.
- 这些酵母的丰富性与以前无法解释的表型变异相关,并且在六大洲发现.
结论:
- 传统的"一个真菌,一个真菌"的共生模式是不完整的.
- 代表了一个更复杂的共生协会,始终涉及一个ascomycete,一个光共生体,和特定的基底菌菌酵母.
- 这些基菌酵母是皮的组成部分,在塑造皮特征方面发挥着作用.
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