Development of the limpet Testudinalia testudinalis (O.F. Müller, 1776) (Patellogastropoda, Mollusca) from the White Sea, with special reference to the radula

IF 0.7 4区生物学 Q4 REPRODUCTIVE BIOLOGY

Invertebrate Reproduction & Development Pub Date : 2020-09-16 DOI:10.1080/07924259.2020.1821798

E. Vortsepneva, Y. Khramova, D. A. Nikishin

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引用次数: 4

Abstract

ABSTRACT Development of the limpet Testudinalia testudinalis collected from the White Sea was studied using light and scanning electron microscopy. Cleavage and early development of T. testudinalis were consistent with the general pattern of patellogastropod development, differing in only minor details, such as temperature-dependent developmental rates. A pre-torsional veliger radula was detected by calcofluor white staining of unpolymerized chitin. The veliger radula consisted of nine transverse rows with three teeth per row, which transformed into the radula of newly settled juveniles with five teeth per row (one central and two pairs of lateral teeth). The juvenile radula, with two pairs of lateral and one pair of hook-like marginal teeth, resembled the adult radula in terms of teeth form and co-localization. Radula formation differs between the larva and adult in that each tooth is formed by several odontoblasts and microvillar secretion in the former, whereas it is formed by numerous cells and apocrine secretion in the latter.

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白海的帽贝Testudinalia testudinalis的发展（O.F.Müller，1776）（软体动物，Patellogloboda），特别是关于radula

摘要采用光镜和扫描电镜对采自白海的Testudinalia testudinalis帽贝的发育进行了研究。雄田鼠的卵裂和早期发育与patellogastropod发育的一般模式一致，仅在温度依赖的发育速率等微小细节上存在差异。用未聚合的几丁质进行荧光白染色，检测出一种扭转前的白斑。新定居幼鱼的齿槽由9排横齿组成，每排3颗齿，新定居幼鱼的齿槽由每排5颗齿(中间1颗齿和侧2对齿)组成。幼崽的齿形与成年齿形相似，有2对侧齿和1对钩状边缘齿。幼体和成体的齿槽形成的不同之处在于，幼体的每颗牙齿是由几个成牙细胞和微绒毛分泌形成的，而成体的齿槽是由许多细胞和大汗液分泌形成的。

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来源期刊

Invertebrate Reproduction & Development 生物-动物学

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Invertebrate Reproduction & Development ( IRD) presents original research on the reproductive and developmental biology of the Invertebrata, both embryonic and postembryonic. IRD welcomes papers reporting significant results obtained using new techniques. Encouraged topic areas include: aquaculture, physiology, biochemistry, functional morphology, phylogeny, behavioural and regulatory mechanisms, including genetic, endocrine and molecular studies. Papers containing qualitative descriptions of reproductive cycles and gametogenesis will not be considered. IRD is published in association with the International Society of Invertebrate Reproduction and Development.