Girdle Band Structure in the Diatom Genus Proschkinia (Bacillariophyta)—Another Potential Adaptation to Stabilise a Deep Cingulum?
Open Access
- 2 June 2023
- Vol. 15 (6), 734
- https://doi.org/10.3390/d15060734
Abstract
The girdle structure of Proschkinia (Bacillariophyta) is described in detail, showing the form of the unusual, channelled bands and how they link together. The significance and potential function of the more complex band structure is discussed in relation to its occurrence in other diatom genera and to other potential stabilising elements. Although some similarities in girdle structure are seen with the diatom genus Undatella, there is currently no evidence of a close phylogenetic relationship between these genera. Based on the current molecular data, Proschkinia is most closely related to the genus Fistulifera, with which it shares a distinctive valve feature, a fistula. Because of the traditional focus on valve morphology, far less is known of the girdle structure within the diatoms, despite its importance for maintaining cell integrity and allowing cell growth. The importance of studying the girdle structure as well as the valve morphology in diatoms in relation to their phylogeny and ecology is stressed.Keywords
This publication has 18 references indexed in Scilit:
- Quantifying diatom aspirations: Mechanical properties of chain‐forming speciesLimnology and Oceanography, 2012
- ONTOGENY, HOMOLOGY, AND TERMINOLOGY—WALL MORPHOGENESIS AS AN AID TO CHARACTER RECOGNITION AND CHARACTER STATE DEFINITION FOR PENNATE DIATOM SYSTEMATICS1Journal of Phycology, 2011
- Pseudostriatella(Bacillariophyta): a description of a new araphid diatom genus based on observations of frustule and auxospore structure and 18S rDNA phylogenyPhycologia, 2008
- The effect of nutrient availability and temperature on chain length of the diatom, Skeletonema costatumJournal of Plankton Research, 2006
- OBSERVATIONS ON THE FRUSTULE ARCHITECTURE OFMASTOGLOIA SMITHU, WITH PARTICULAR REFERENCE TO THE VALVOCOPULAE AND ITS INTEGRATION WITH THE VALVEDiatom Research, 1990
- AN ILLUSTRATED SURVEY OF THE MORPHOLOGICAL FEATURES OF THE DIATOM GENUSMASTOGLOIADiatom Research, 1990
- TAXONOMIC STUDIES ON THE DIATOM GENUSNAVICULAV. THE ESTABLISHMENT OFPARLIBELLUSGEN. NOV. FOR SOME MEMBERS OFNAVICULASECT.MICROSTIGMATICAEDiatom Research, 1988
- FRUSTULAR MORPHOLOGY AND TAXONOMIC AFFINITIES OF NAVICULA COMPLANATOIDES (BACILLARIOPHYCEAE)Journal of Phycology, 1988
- A NOTE ON THE INTERNAL CONSTRUCTION OF THE PARTECTAL RING OFMASTOGLOIA LANCEOLATADiatom Research, 1987
- VALVE AND BAND MORPHOLOGY OF SOME FRESHWATER DIATOMS. II. INTEGRATION OF VALVES AND BANDS IN NAVICULA CONFERVACEA VAR. CONFERVACEA12Journal of Phycology, 1980