Taxonomic studies on the fishes of the family Cyprinidae from lake Kolleru, Andhra Pradesh

1977 ◽  
Vol 85 (3) ◽  
pp. 107-146
Author(s):  
V. Sriramachandra Murty
Keyword(s):  
Andhra Pradesh ◽  
The Family ◽  
Taxonomic Studies

Taxonomic studies on Archigetes Leuckart, 1878 (Cestoda: Caryophyllaeidae)

Parasitology ◽  
1965 ◽  
Vol 55 (3) ◽  
pp. 439-451 ◽  
Author(s):  
C. R. Keneedy
Keyword(s):  
Life History ◽  
Experimental Work ◽  
Nature Conservancy ◽  
The Family ◽  
Single Genus ◽  
Biological Characters ◽  
Taxonomic Studies ◽  
Relationship Of ◽  
Recent Experimental Work ◽  
The Relationship

Recent experimental work has indicated that species of Archigetes are capable of infecting and maturing in fishes in addition to tubificids.The genus Archigetes is re-defined on the basis of morphological and biological characters, with particular emphasis on recent life history studies. All species capable of neotenic development have been re-united in a single genus.A description of all species of Archigetes together with a key for their identification are included. New synonomies are discussed.The relationship of Archigetes to other genera of the family is briefly considered, and it is concluded that it forms the terminal stage in a series showing the attainment of neotenic development.I wish to thank Professor R. J. Pumphrey in whose Department the work was carried out, and Dr J. C. Chubb for advice and help in the preparation of this manuscript. I am also grateful to Professor K. Berg and Dr R. L. Calentine for the loan of specimens. The work was carried out during the tenure of a Nature Conservancy Research Studentship.

Analysis of non-morphometric morphological characters used in the taxonomy of the genus Pseudechiniscus (Tardigrada: Echiniscidae)

2019 ◽  
Author(s):  
Denis V Tumanov
Keyword(s):  
Species Delimitation ◽  
Taxonomic Status ◽  
Electron Microscopic Examination ◽  
Morphological Characters ◽  
Electron Microscopic ◽  
The Family ◽  
Scanning Electron Microscopic ◽  
Claw Morphology ◽  
Taxonomic Studies ◽  
A New Species

Abstract Pseudechiniscus, the second-largest genus of the family Echiniscidae (Tardigrada: Heterotardigrada: Echiniscoidea), is notoriously difficult for taxonomic studies. In this study, I performed a morphological analysis of a new species from Croatia, based on a light microscopic and scanning electron microscopic examination of 45 specimens from the same sample. Furthermore, I have summarized all available data on Pseudechiniscus species, including their original descriptions, and have analysed the following complexes of morphological characters: (1) arrangement and morphology of dorsal cuticular plates, (2) ventral sculpture, (3) morphology of cephalic, trunk and leg sensory organs and (4) claw morphology. The applicability of these characters in the taxonomy and their distribution in the genus are discussed. Some of the characters traditionally used for species delimitation were shown to be unsuitable and others in need of a thorough reinvestigation. The meaning of the old term ‘faceted’, commonly used but often misapplied, has been clarified, based on the initial definition. Several characters of the claw structure were suggested as potentially useful for species delimitation. The taxonomic status of several old forms and species was discussed.

Taxonomic Studies in the Family Pythiaceae

Mycologia ◽  
1931 ◽  
Vol 23 (4) ◽  
pp. 252-295
Author(s):  
C. P. Sideris
Keyword(s):  
The Family ◽  
Taxonomic Studies

scholarly journals A PHARMACOGNOSTIC AND PHARMACOLOGICAL REVIEW ON CURCUMA PSEUDOMONTANA J.GRAHAM

2018 ◽  
Vol 11 (12) ◽  
pp. 17
Author(s):  
Vanita Kanase ◽  
Jyoti D Singh
Keyword(s):  
Andhra Pradesh ◽  
Nutritive Value ◽  
Fluorescence Analysis ◽  
Eastern Ghats ◽  
Pharmacological Activities ◽  
Peninsular India ◽  
Phytochemical Study ◽  
Primary And Secondary Metabolites ◽  
Current Review ◽  
The Family

Curcuma pseudomontana J. Graham belongs to the family Zingiberaceae, commonly known as hill turmeric. It is an endemic to the Western and Eastern Ghats, of peninsular India. C. pseudomontana rhizome is beneficial against leprosy, dysentery, and cardiac diseases. The Savara, Bagata, and Valmiki tribes of Andhra Pradesh use tuber extracts to cure jaundice and Bagata tribes use this plant for diabetes. In the present study, the preliminary phytochemical study and antioxidant activity of the rhizome extracts of C. pseudomontana were evaluated. Phytochemical screening indicated that rhizomes are rich in a variety of primary and secondary metabolites such as carbohydrates, alkaloids, Vitamin C, Vitamin E, flavonoids, phenols, glycosides, and saponins. The study highlights the biochemical and ethnopharmacological significance of an endemic C. pseudomontana. The results of pharmacognostic analysis will be helpful in developing standards for quality, purity, and sample identification. The current review summarizes the pharmacognostic parameters such as macroscopic, microscopic, physicochemical constituents, fluorescence analysis, nutritive value, behavior analysis of rhizome powder, and pharmacological activities prove it is a useful medicinal plant.

Taxonomic Studies in the Family Pythiaceae II. Pythium

Mycologia ◽  
1932 ◽  
Vol 24 (1) ◽  
pp. 14-61 ◽  
Author(s):  
C. P. Sideris
Keyword(s):  
The Family ◽  
Taxonomic Studies

scholarly journals Chandrasekhara Venkata Raman, 1888-1970

1971 ◽  
Vol 17 ◽  
pp. 564-592 ◽  
Keyword(s):  
High School ◽  
Tamil Nadu ◽  
Andhra Pradesh ◽  
East Coast ◽  
Gold Medal ◽  
Presidency College ◽  
The Family ◽  
And Mathematics ◽  
University Degree ◽  
First Time

Chandrasekhara Venkata Raman was born at Trichinopoly in South India on the 7 November 1888. Raman’s parents, Chandrasekhara Iyer and Parvati Ammal, lived at that time in what was then called the province of Madras, a part of India now known as the Tamil Nadu. The family, for many generations, had been pursuing the profession of agriculture and were of moderate means. Family traditions in those days were such that if anyone attempted to break off from them, it would have been regarded as a bold step. Raman’s father did take such a bold step when for the first time in the family, he took to teaching in the local English High School. This bold step was followed by another when Mr Chandrasekhara Iyer decided to accept the post of lecturer in physics and mathematics at the Mrs A. V. N. College, Vizagapatam; Raman was then four years old. Vizagapatam, now known as Visakhapatnam, is a sea-port town on the east coast of India and situated in the State of Andhra Pradesh. Thus, the parents and with them the four-year-old son moved to Vizagapatam. The next ten years of Raman’s life were spent at Vizagapatam, where he studied for eight years in the High School and two years in the College. He passed the Intermediate examination in 1902, enabling himself to join for a university degree course. In January 1903, he moved to Madras and joined the Presidency College. He passed his B.A. degree examination in 1904, winning the first place and a Gold Medal in physics. He passed the M.A. degree examination in 1907, again obtaining a first division and record marks.

scholarly journals Prediction of whole-genome DNA–DNA similarity, determination of G+C content and phylogenetic analysis within the family Pasteurellaceae by multilocus sequence analysis (MLSA)

Microbiology ◽  
2006 ◽  
Vol 152 (9) ◽  
pp. 2537-2548 ◽  
Author(s):  
Peter Kuhnert ◽  
Bożena M. Korczak
Keyword(s):  
Dna Hybridization ◽  
Gold Standard ◽  
Classical Method ◽  
Gene Sequencing ◽  
Dna Relatedness ◽  
Experimental Variation ◽  
The Family ◽  
Taxonomic Studies ◽  
Species Descriptions

Genome predictions based on selected genes would be a very welcome approach for taxonomic studies, including DNA–DNA similarity, G+C content and representative phylogeny of bacteria. At present, DNA–DNA hybridizations are still considered the gold standard in species descriptions. However, this method is time-consuming and troublesome, and datasets can vary significantly between experiments as well as between laboratories. For the same reasons, full matrix hybridizations are rarely performed, weakening the significance of the results obtained. The authors established a universal sequencing approach for the three genes recN, rpoA and thdF for the Pasteurellaceae, and determined if the sequences could be used for predicting DNA–DNA relatedness within the family. The sequence-based similarity values calculated using a previously published formula proved most useful for species and genus separation, indicating that this method provides better resolution and no experimental variation compared to hybridization. By this method, cross-comparisons within the family over species and genus borders easily become possible. The three genes also serve as an indicator of the genome G+C content of a species. A mean divergence of around 1 % was observed from the classical method, which in itself has poor reproducibility. Finally, the three genes can be used alone or in combination with already-established 16S rRNA, rpoB and infB gene-sequencing strategies in a multisequence-based phylogeny for the family Pasteurellaceae. It is proposed to use the three sequences as a taxonomic tool, replacing DNA–DNA hybridization.

Loma trichiuri. [Descriptions of Fungi and Bacteria].

2020 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Geographical Distribution ◽  
Andhra Pradesh ◽  
Conservation Status ◽  
Western Pacific ◽  
Host Cytoplasm ◽  
The Family ◽  
Host Nucleus

Abstract A description is provided for Loma trichiuri, which infects fish of the family Trichiuridae in the Indian and western Pacific Oceans; infections developing in the host cytoplasm (but not in nerve tissues), presumably without diplokarya, and resulting in tumours (also known as 'xenomas') in which the host nucleus is presumed to be centrally located. Some information on its dispersal and transmission, habitats and conservation status is given, along with details of its geographical distribution (Asia (India (Andhra Pradesh))).

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