Department of Bioenergy, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.
Plant Biol (Stuttg). 2011 Sep;13(5):801-8. doi: 10.1111/j.1438-8677.2010.00427.x. Epub 2010 Dec 23.
Synchroma grande (Synchromophyceae, Heterokontophyta) is a marine amoeboid alga, which was isolated from a benthic habitat. This species has sessile cell stages (amoeboid cells with lorica and cysts) and non-sessile cell stages (migrating and floating amoebae) during its life cycle. The different cell types and their transitions within the life cycle are described, as are their putative functions. Cell proliferation was observed only in cells attached to the substrate but not in free-floating or migrating cells. We also characterised the phagotrophy of the meroplasmodium in comparison to other amoeboid algae and the formation of the lorica. The functional adaptations of S. grande during its life cycle were compared to the cell stages of other amoeboid algae of the red and green chloroplast lineages. S. grande was found to be highly adapted to the benthic habitat. One sexual and two asexual reproductive strategies (haplo-diploid life cycle) support the ability of this species to achieve rapid diversification and high adaptivity in its natural habitat.
Synchroma grande（Synchromophyceae，Heterokontophyta）是一种海洋变形虫藻类，从底栖生境中分离出来。该物种在其生命周期中有固着细胞阶段（具囊壳和胞囊的变形虫细胞）和非固着细胞阶段（游动和漂浮的变形虫）。描述了不同的细胞类型及其在生命周期中的转变，以及它们的可能功能。细胞增殖仅在附着在基质上的细胞中观察到，而在自由漂浮或游动的细胞中则没有观察到。我们还比较了 meroplasmodium 的吞噬作用与其他变形虫藻类的吞噬作用，并比较了囊壳的形成。将 S. grande 在其生命周期中的功能适应性与红藻和绿藻叶绿体谱系的其他变形虫藻类的细胞阶段进行了比较。发现 S. grande 高度适应底栖生境。一种有性生殖策略和两种无性生殖策略（单倍二倍体生命周期）支持该物种在其自然栖息地中快速多样化和高度适应性的能力。
