Taxonomy and Bathymetric Distribution of Holocene Deep-Sea Benthic Foraminifera in the Indian Ocean and the Red Sea

1994 ◽  
Vol 40 (4) ◽  
pp. 351 ◽  
Author(s):  
Anil K. Gupta
1993 ◽  
Vol 67 (5) ◽  
pp. 902-905
Author(s):  
Anil K. Gupta ◽  
Barun K. Sen Gupta

Two new species of benthic foraminifera, Heronallenella boltovskoyi and Planulinoides srinivasani, are present at four Deep Sea Drilling Project (DSDP) sites in the tropical Indian Ocean (Table 1 and Figure 1). Both species are rare, each constituting less than 1 percent of the assemblage (> 149 μm size fraction) in which it occurs. The former, belonging to a new genus, occurs in Pliocene to Holocene sediments of DSDP sites 219, 237, 238, and 253, whereas the latter is present in the late Pleistocene of sites 237 and 238. The stratigraphic placement of the samples is after Srinivasan and Singh (1989) for site 219 and after Gupta (1987) for sites 237, 238, and 253. The descriptions of the new taxa are given below; the suprageneric classification is taken from Loeblich and Tappan (1987).


2010 ◽  
Vol 40 (2) ◽  
pp. 113-133 ◽  
Author(s):  
B. W. Hayward ◽  
A. T. Sabaa ◽  
E. Thomas ◽  
S. Kawagata ◽  
R. Nomura ◽  
...  

2019 ◽  
Vol 69 (4) ◽  
pp. 932-936 ◽  
Author(s):  
Qiliang Lai ◽  
Xiupian Liu ◽  
Jun Yuan ◽  
Shuchen Xie ◽  
Zongze Shao

A taxonomic study was carried out on strain CIC4N-9T, which was isolated from deep-sea water of the Indian Ocean. The bacterium was Gram-stain-negative, catalase- and oxidase-positive, rod-shaped and non-motile. Growth was observed at salinities of 0–9% and at temperatures of 4–41 °C. The isolate was able to degrade gelatin but not aesculin. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain CIC4N-9T belonged to the genus Pararhodobacter , with the highest sequence similarity to the only recognized species, Pararhodobacter aggregans D1-19T (96.9 %). The average nucleotide identity and estimated DNA–DNA hybridization values between strain CIC4N-9T and P. aggregans D1-19T were 80.4 and 23.0 %, respectively. The principal fatty acids were summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c), C16 : 0, C18 : 1ω7c 11-methyl, C18 : 0 and C17 : 0. The G+C content of the chromosomal DNA was 66.8 mol%. The sole respiratory quinone was determined to be Q-10. Phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, two unknown phospholipids, four unknown aminolipids and one unknown polar lipid were present. The combined genotypic and phenotypic data show that strain CIC4N-9T represents a novel species within the genus Pararhodobacter , for which the name Pararhodobacter marinus sp. nov. is proposed. The type strain is CIC4N-9T (=MCCC 1A01225T=KCTC 52336T).


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