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首页> 外文期刊>Acta Societatis Botanicorum Poloniae >Comparative study of the oospore morphology of two populations of a rare species Chara baueri A. Braun in Cedynia (Poland) and Batzlow (Germany)
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Comparative study of the oospore morphology of two populations of a rare species Chara baueri A. Braun in Cedynia (Poland) and Batzlow (Germany)

机译：Cedynia（波兰）和Batzlow（德国）的一种稀有物种Chara baueri A. Braun的两个种群的卵形形态比较研究

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摘要

Morphological features of oospores of Chara baueri A. Braun, one of the rarest charophyte species worldwide, were studied based on 100 oospores collected from a small and temporarily dried mid-field pond near Cedynia, Western Poland. This is the first Polish and fifth presently known locality of this species. For comparison 67 oospores from a German population (similar pond localized near Batzlow, Germany) were also measured. So far, data on morphology of C. baueri oospores as well as the species ecology are limited. The only more detailed study of oospores for this species was earlier performed on 15 oospores from Kazakhstan. Largest polar axis (LPA, length), largest equatorial diameter (LED, width), isopolarity index (ISI = LPA/LED × 100), number of ridges, width of fossa, distance from apical pole to LED (AND) and anisipolarity index (ANI = AND/LPA × 100) were measured. The comparative analysis revealed that the oospores from Poland are generally bigger and more prolate than the Ger-man ones. The differences for most of studied parameters were statistically significant. The finding is discussed in the context of habitat differentiation of both studied sites. Moreover, the results obtained of oospore measurements for both populations differs from most of the data known so far from the literature.
机译：根据波兰西部Cedynia附近一个临时干燥的小型中场池塘收集的100个卵孢子，研究了Chara baueri A. Braun（全世界最稀有的藻类物种之一）的卵孢子的形态特征。这是该物种的第一个波兰语和第五个目前已知的位置。为了进行比较，还测量了来自德国人口的67个卵孢子（位于德国Batzlow附近的类似池塘）。到目前为止，有关鲍氏梭菌卵孢子形态和物种生态学的数据是有限的。该物种的卵孢子的唯一更详细的研究是较早在哈萨克斯坦的15个卵孢子上进行的。最大极轴（LPA，长度），最大赤道直径（LED，宽度），等极性指数（ISI = LPA / LED×100），脊数，窝宽度，顶极到LED的距离（AND）和反极性指数（ANI ＝ AND / LPA×100）被测量。比较分析表明，波兰的卵子通常比德国的卵子更大，更扁。大多数研究参数的差异具有统计学意义。在两个研究地点的生境分化的背景下讨论了这一发现。而且，两个种群的卵孢子测量结果与迄今从文献中获知的大多数数据都不同。

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