The new species Nephrochlamys yushanlensis sp. nov. is described from a freshwater plankton sample. A comparison of morphology, 18S rDNA gene and ITS2 sequences, and fatty acid profiles showed that the novel strain represents a new lineage within the genus Nephrochlamys. For the first time with a member of the Selenastraceae, experiments with phosphate and nitrate deprivation were conducted to evaluate changes in biomass, lipid and triacylglycerol (TAGs) accumulation, and composition of fatty acids. Biomass dry weight under simultaneous nitrogen and phosphorus depletion was 1.73 g · L⁻¹, which is significantly lower than the 2.41 g · L⁻¹ observed in the control. All conditions of nutrient restriction significantly increased the lipid content in comparison with the control. The largest increase in the total lipid content, reaching 58.64% DW per cell at the end of cultivation, occurred with nitrogen deficiency. Significant increases in TAGs content (to 23.69% and 21.74%, respectively) occurred in phosphorus‐ and nitrogen‐depleted conditions in comparison to the control (16.90%). Oleic (49.8–64.1%), palmitic (21.1–22.7%), and linoleic (8.6–10.3%) acids were the dominant fatty acids when cultured on standard BBM medium, as well as with the shortage of nutrients. Phosphorus deprivation as well as absence of both nitrogen and phosphorus led to the appearance of FAMEs α‐linolenic (1.5–4.1%) and stearidonic (1.0–1.8%) acids. In general, FAME profiles revealed that the relative percentage of saturated and monounsaturated fatty acids increased (88.9% of total fatty acids) in nitrogen‐depletion conditions, suggesting this strain may be suitable for biodiesel production.

中文翻译：

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玉山淡水海藻属一新种。十一月 （Selenastraceae，Sphaeropleales）及其氮和磷饥饿时的脂质积累

玉山猪笼草的新种。十一月 从淡水浮游生物样品中描述。形态，18S rDNA基因和ITS2序列以及脂肪酸谱的比较表明，该新菌株代表了肾肾病属中的新谱系。首次与硒草科成员进行了磷酸盐和硝酸盐剥夺实验，以评估生物量，脂质和三酰基甘油（TAG）积累以及脂肪酸组成的变化。氮和磷同时消耗的生物量干重为1.73 g·L ^-1，明显低于2.41 g·L ^-1在对照中观察到。与对照相比，所有营养限制条件均显着增加了脂质含量。总脂质含量的最大增加，在培养结束时达到每细胞58.64％DW，这是由于氮缺乏引起的。与对照（16.90％）相比，磷和氮贫化条件下TAGs含量显着增加（分别达到23.69％和21.74％）。当在标准BBM培养基上培养时，油酸（49.8–64.1％），棕榈酸（21.1–22.7％）和亚油酸（8.6–10.3％）是主要的脂肪酸，并且缺乏营养。磷的缺乏以及氮和磷的缺乏导致出现了FAMEsα-亚麻酸（1.5-4.1％）和硬脂酸（1.0-1.8％）酸。一般来说，