The diatom Nitzschia palea is a widespread eurybiontic alga that inhabits the benthos of freshwater ponds and watercourses, soils and caves. This species has a potential for biotechnological applications; therefore, knowledge on its biology is important. Although the species has been studied quite extensively, comprehensive information on its life cycle properties, including cardinal points, is still lacking. In this contribution, based on our own observations and literature data, we supplement and summarize the available information on the species’ life cycle, including data on morphology, morphometry, teratological structures of valves and cardinal points. We also revealed a uniparental inheritance of the mitochondrial gene cox1 in N. palea. The data obtained will be important for phylogeography studies of the species, as well as provide fundamental basis for the technology of long-term maintenance of N. palea in culture.

中文翻译：

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Nitzschia Palea (Kützing) W. Smith (Bacillariophyta) 的生命周期

硅藻 Nitzschia palea 是一种广泛存在的 eurybiontic 藻类，栖息在淡水池塘和水道、土壤和洞穴的底栖动物中。该物种具有生物技术应用的潜力；因此，了解其生物学知识很重要。尽管对该物种进行了相当广泛的研究，但仍缺乏有关其生命周期特性（包括基点）的综合信息。在这篇文章中，我们根据自己的观察和文献数据，补充和总结了有关物种生命周期的可用信息，包括形态学、形态测量学、瓣膜和基点的畸形结构数据。我们还揭示了 N.palea 线粒体基因 cox1 的单亲遗传。获得的数据对于物种的系统地理学研究很重要，