Surirella lacrimula J. D. English 2012
| Autor: | Long, Ji-Yan, Liu, Bing, Rioual, Patrick, Yang, Bin, Zhou, Min |
|---|---|
| Rok vydání: | 2023 |
| Předmět: | |
| DOI: | 10.5281/zenodo.7840362 |
| Popis: | Surirella lacrimula J.D. English 2012 (LM: Figs 55–66, SEM: Figs 67–77, 105) Observations:— LM: Valve outline ovate with broadly rounded headpole and cuneate footpole (Figs 55–66). Valve dimensions (n = 30): length 24–34 μm, width 10.3–13.1 μm (measured at the widest part of the valve), length/width ratio 2.1–2.6. Valve composed of two distinct portions: central portion and outside portion (indicated in Fig. 59). Fibulae evident, spanning c. 1/4 of valve width, not extending to midline, 7–9 in 10 μm. Fibulae parallel at valve middle, radiate approaching apices. SEM: Valve face flat making CSBs difficult to distinguish as CSBs not elevated from OFCs (Fig. 67–71). Striae multiseriate, composed of 3 or 4 rows of areolae, 30–32 in 10 μm (measured from SEM images, n = 4). Outside openings of areolae slit-like (Figs 68–71). Raphe canal located directly on mantle. Internally, valve composed of two portions: central portion and outside portion (indicated in Fig. 74). Wall of raphe canal growing slightly into cell cavity so that the portulae are easily visible (Figs 72–74). Fibulae short, a few bifurcate, spanning c. 1/4 of valve width, not extending to valve midline (Figs 72–74). Raphe continuous at headpole (Fig. 76, wavy arrow), but interrupted at footpole (Fig. 77, two arrows). One to three portulae occurring between two adjacent fibulae (Fig. 75, three arrows; Fig. 105, three arrows). Distribution:— S. lacrimula was found in the same site with S. liubingii. From the literature, this species appears to have a global distribution as it has been reported in the USA, France, Argentina, and Iran (English & Potapova 2012, Bey & Ector 2013, Seeligmann & Maidana 2019, Safiallah et al. 2020). Published as part of Long, Ji-Yan, Liu, Bing, Rioual, Patrick, Yang, Bin & Zhou, Min, 2023, Ultrastructure of four Surirella taxa (Bacillariophyceae) from Qinghai Province, northwest China, with reference to the characteristics of portulae, pp. 163-177 in Phytotaxa 592 (2) on page 168, DOI: 10.11646/phytotaxa.592.2.11, http://zenodo.org/record/7840352 {"references":["English, J. D. & Potapova, M. G. (2012) Ontogenetic and interspecific valve shape variation in the Pinnatae group of the genus Surirella and the description of S. lacrimula sp. nov. Diatom Research 27 (1): 9 - 27. https: // doi. org / 10.1080 / 0269249 X. 2011.642950","Bey, M. - Y. & Ector, L. (2013) Atlas des diatomees des cours d'eau de la region Rhone-Alpes, Tome 6. Bacillariacees, Rhopalodiacees, Surirellacees. DREAL Rhone-Alpes, Lyon, France, pp. 973 - 1182.","Seeligmann, C. & Maidana, N. (2019) Diatomeas perifiticas de un rio de montana (Tucuman, Argentina). Lilloa 56 (1): 64 - 91. https: // doi. org / 10.30550 / j. lil / 2019.56.1 / 5","Safiallah, S., Saadatmand, S., Kheiri, S. & Iranbakhsh, A. (2020) Biodiversity of diatoms in the Kashkan River in the Zagros Mountains, western Iran. The Iranian Journal of Botany 26 (2): 141 - 161. https: // doi. org / 10.22092 / ijb. 2020.351698.1296"]} |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|