一个世界性的Serendipita与南极半岛的叶状肝炎形成了mycothalli
K K Newsham1, G W Foot2, C J Sands1
1British Antarctic Survey, NERC, Madingley Road, Cambridge, CB3 0ET, United Kingdom.
Fungal biology
|December 9, 2024
概括
在南乔治亚亚南极洲,肝和真菌之间的共生协会Mycothalli是常见的. 一个单一的真菌物种,Serendipita,经常与叶状肝形成这些共生关系.
科学领域:
- 菌类学 菌类学是指菌类学.
- 植物学 植物学
- 共生研究是对共生的研究.
背景情况:
- 在亚南极地区,Mycothalli (肝-真菌共生) 的研究不足.
- 属Serendipita的生物地理模式尚未得到充分理解.
研究的目的:
- 调查南乔治亚南极洲次南极洲的真菌菌的发生和多样性.
- 确定与叶状肝炎相关的Serendipita真菌的分类学和生物地理分布.
主要方法:
- 在南格鲁吉亚采集了来自16种叶状肝的83个标本.
- 微观检查肝组织中的真菌结构 (状卷).
- 菌类核糖体DNA (ITS2区域) 的测序,用于分类识别和遗传学分析.
主要成果:
- 在Barbilophozia hatcheri,Cephaloziella varians和Lophoziopsis excisa.中经常出现染色的状卷,表明mycothalli,这些卷在Barbilophozia hatcheri,Cephaloziella varians和Lophoziopsis excisa.中经常出现.
- 一个单一的Serendipita物种被确定为这些肝的频繁共生体.
- 遗传学分析显示,这种Serendipita物种是南极半岛和南极海上叶状肝炎中唯一的共生生物,在南极洲以外的全球范围内发现的物种丰富度更大.
结论:
- 在南极地区,Serendipita真菌与叶状肝形成广泛和一致的共生关系.
- 已识别的Serendipita物种在南极,南美,欧洲和北极地区广泛分布.
- 南极洲的港口与全球其他地区相比,Serendipita物种丰富度有限.
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