Description of Deviata rositae n. sp., a New Ciliate Species (Ciliophora, Stichotrichia) from Argentina

Abstract

Soil samples were taken from a temporary pond located in Buenos Aires province, Argentina, during the dry phase in the summer of 2005. The ciliates were studied alive and after staining with protargol. Deviata rositae n. sp. measures 112-154 microm in length and 21-28 microm in width in vivo and has a vermiform body. The contractile vacuole is located in the mid-body on the left. The macronucleus is moniliform and there are 1-3 micronuclei. The oral apparatus is composed of 14-18 adoral membranelles and straight paroral and endoral membranes that never intersect each other. The somatic ciliature is arranged in four frontal cirri, one buccal cirrus, six long and slightly spiraled rows of cirri with the first right row extending up to the equatorial or sub-equatorial region, and two dorsal rows of dikinetids. This new species of Deviata primarily differs from its congeners by the number of macronuclear nodules and the number and disposition of the dorsal rows of dikinetids.

Morphology of Parastrongylidium estevesi comb. nov. and Deviata brasiliensis sp. nov. (Ciliophora: Stichotrichia) from a sewage treatment plant in Rio de Janeiro, Brazil

“…nov.). KÜPPERS et al (2007) reported barren kinetids in ventral surface of D. rositae and in a population preliminarily identified as Deviata cf. bacilliformis.…”

Morphology, Ontogeny, and Molecular Phylogeny of Two Freshwater Species of Deviata (Ciliophora, Hypotrichia) from Southern China

“…Compared with our form, the original population is smaller (112–154 × 21–28 μm in vivo and 98–154 × 25–56 μm after protargol impregnation vs. 200–300 × 15–25 μm in vivo and 140–267 × 23–60 μm after protargol impregnation) and has a little more macronuclear segments (7–14, 9 on average, vs. 4–8, 6 on average) and fewer cirri (Küppers et al. ). However, these differences can be considered as population‐dependent, owing to the variation of body size of limnetic and terrestrial ciliates (Foissner et al.…”

“…Our population possesses most of the diagnostic features described by Küppers et al. (), especially only two long frontoventral rows as well as one long and one short dorsal kinety. Compared with our form, the original population is smaller (112–154 × 21–28 μm in vivo and 98–154 × 25–56 μm after protargol impregnation vs. 200–300 × 15–25 μm in vivo and 140–267 × 23–60 μm after protargol impregnation) and has a little more macronuclear segments (7–14, 9 on average, vs. 4–8, 6 on average) and fewer cirri (Küppers et al.…”

“…Nevertheless, Lynn and Small (), Jankowski (), Küppers et al. (), and Lynn () took over the original classification of Deviata in Kahliellidae. Berger () was uncertain about the phylogenetic position of Deviata and treated it as a non‐dorsomarginalian hypotrich.…”

“…So far, nine species have been assigned to the genus (Berger ; Li et al. ): Deviata abbrevescens Eigner, ; Deviata bacilliformis (Gelei, 1954) Eigner, ; Deviata quadrinucleata (Dragesco ) Berger, ; Deviata brasiliensis Siqueira‐Castro et al., ; Deviata spirostoma (Alekperov, 1988) Berger, ; Deviata polycirrata Küppers and Claps, ; Deviata rositae Küppers et al., ; Deviata estevesi Paiva and Silva‐Neto, ; Deviata parabacilliformis Li et al., . Among them, only D. bacilliformis was redescribed (Berger ).…”