We report here a checklist of tintinnids (loricate ciliates) for the coastal zone of India. Based... more We report here a checklist of tintinnids (loricate ciliates) for the coastal zone of India. Based on available literature (1978 to 2017), a total of 25 stations were studied from 5 distinct areas of Indian coastal waters. A total of 151 species of 33 genera belonging to 14 families of tintinnids were documented. Diversity patterns of tintinnids were recorded higher along the west coast (30 genera and 106 species) than the east coast of India (20 genera and 93 species). Among tintinnids families, the Codonellidae (2 genera and 52 species, 20%) and the Tintinnidae (8 genera and 21 species, 19%) are the major contributors to the total tintinnids diversity in the Indian coastal zone.
Mangrove environment supports a rich and diverse group of microorganisms. These bacteria perform ... more Mangrove environment supports a rich and diverse group of microorganisms. These bacteria perform various ecologically important activities in these ecosystems like nitrogen fixation, methanogenesis etc. and also by the release of various kinds of compounds in the environment. In the present study, sediment samples from the three zones of mangrove ecosystems viz.proximal, middle and distal were examined for Actinobacteria. A total of 23 Actinobacterial colonies were isolated. The THBC varied between 24 +0.82 X 10 6 in Proximal Zone to 50 +1.7 x 10 6 in the distal zone in Burmanallah with an increasing trend in the THBC from proximal to the distal zone. While in Carbyn’s Cove, THBC ranged between 20 +2.16 x 10 6 in the middle zone and 42 +1.7 x 10 6 in the distal zone. An increase in the TAC towards sea was obtained in TAC from Nil in the distal zone to 4 +1.7 X 10 6 in the proximal zone in Burmanallah and in Carbyn’s Cove, TAC ranged between 0.0006 +0.0001 X 10 6 in the distal zone and 8 +0.47 X 10 6 in the proximal zone. ANOSIM (R: 0.932) have shown that microbial community structure was not different between sites and zones at a significance level of 1.7% . This also confirmed the similarity seen in the MDS. The diversity is high in the proximal stations and in the distal zone of Carbyn’s Cove. The Actinobacteria viz. Micromonosporasp., Streptomyces aburaviensis, Streptomyces aurantiogriesius, Streptomyces aurofasciculus, Streptomyces flavoviridisand Nocardia astreoides. S. aurantiogriesiushave shown the maximum activity with more than 10 mm zone of inhibition against Klebseillasp., E. coli, V. choleraand S. flexheri. While S. aburaviensishave shown high activity against Klebseillasp., E. coliand V. c h o lera. The other Streptomyces species like S. aurofasciculus and S. flavoviridishave shown medium activity against the pathogens. The present study could be drawn that marine environment yields a greater number of isolates per source that is comparable with that obtained from mangrove soils. On the other side, the number of isolates obtained from mangrove sediments is lower, particularly in the case of Actinobacteria. The present study also shows that the two study area Barmanallha and Carbyn’s Cove) of south Andaman have high potential Actinobacteria with bioactivity useful for identification of some novel compounds in future.
We report here a checklist of tintinnids (loricate ciliates) for the coastal zone of India. Based... more We report here a checklist of tintinnids (loricate ciliates) for the coastal zone of India. Based on available literature (1978 to 2017), a total of 25 stations were studied from 5 distinct areas of Indian coastal waters. A total of 151 species of 33 genera belonging to 14 families of tintinnids were documented. Diversity patterns of tintinnids were recorded higher along the west coast (30 genera and 106 species) than the east coast of India (20 genera and 93 species). Among tintinnids families, the Codonellidae (2 genera and 52 species, 20%) and the Tintinnidae (8 genera and 21 species, 19%) are the major contributors to the total tintinnids diversity in the Indian coastal zone.
Mangrove environment supports a rich and diverse group of microorganisms. These bacteria perform ... more Mangrove environment supports a rich and diverse group of microorganisms. These bacteria perform various ecologically important activities in these ecosystems like nitrogen fixation, methanogenesis etc. and also by the release of various kinds of compounds in the environment. In the present study, sediment samples from the three zones of mangrove ecosystems viz.proximal, middle and distal were examined for Actinobacteria. A total of 23 Actinobacterial colonies were isolated. The THBC varied between 24 +0.82 X 10 6 in Proximal Zone to 50 +1.7 x 10 6 in the distal zone in Burmanallah with an increasing trend in the THBC from proximal to the distal zone. While in Carbyn’s Cove, THBC ranged between 20 +2.16 x 10 6 in the middle zone and 42 +1.7 x 10 6 in the distal zone. An increase in the TAC towards sea was obtained in TAC from Nil in the distal zone to 4 +1.7 X 10 6 in the proximal zone in Burmanallah and in Carbyn’s Cove, TAC ranged between 0.0006 +0.0001 X 10 6 in the distal zone and 8 +0.47 X 10 6 in the proximal zone. ANOSIM (R: 0.932) have shown that microbial community structure was not different between sites and zones at a significance level of 1.7% . This also confirmed the similarity seen in the MDS. The diversity is high in the proximal stations and in the distal zone of Carbyn’s Cove. The Actinobacteria viz. Micromonosporasp., Streptomyces aburaviensis, Streptomyces aurantiogriesius, Streptomyces aurofasciculus, Streptomyces flavoviridisand Nocardia astreoides. S. aurantiogriesiushave shown the maximum activity with more than 10 mm zone of inhibition against Klebseillasp., E. coli, V. choleraand S. flexheri. While S. aburaviensishave shown high activity against Klebseillasp., E. coliand V. c h o lera. The other Streptomyces species like S. aurofasciculus and S. flavoviridishave shown medium activity against the pathogens. The present study could be drawn that marine environment yields a greater number of isolates per source that is comparable with that obtained from mangrove soils. On the other side, the number of isolates obtained from mangrove sediments is lower, particularly in the case of Actinobacteria. The present study also shows that the two study area Barmanallha and Carbyn’s Cove) of south Andaman have high potential Actinobacteria with bioactivity useful for identification of some novel compounds in future.
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release of various kinds of compounds in the environment. In the present study, sediment samples from the three zones
of mangrove ecosystems viz.proximal, middle and distal were examined for Actinobacteria. A total of 23 Actinobacterial colonies were isolated. The THBC varied between 24 +0.82 X 10
6
in Proximal Zone to 50 +1.7 x 10
6
in the distal
zone in Burmanallah with an increasing trend in the THBC from proximal to the distal zone. While in Carbyn’s Cove,
THBC ranged between 20 +2.16 x 10
6
in the middle zone and 42 +1.7 x 10
6
in the distal zone. An increase in the
TAC towards sea was obtained in TAC from Nil in the distal zone to 4 +1.7 X 10
6
in the proximal zone in Burmanallah and in Carbyn’s Cove, TAC ranged between 0.0006 +0.0001 X 10
6
in the distal zone and 8 +0.47 X 10
6
in the
proximal zone. ANOSIM (R: 0.932) have shown that microbial community structure was not different between sites
and zones at a significance level of 1.7% . This also confirmed the similarity seen in the MDS. The diversity is high in
the proximal stations and in the distal zone of Carbyn’s Cove. The Actinobacteria viz. Micromonosporasp., Streptomyces
aburaviensis, Streptomyces aurantiogriesius, Streptomyces aurofasciculus, Streptomyces flavoviridisand Nocardia astreoides.
S. aurantiogriesiushave shown the maximum activity with more than 10 mm zone of inhibition against Klebseillasp.,
E. coli, V. choleraand S. flexheri. While S. aburaviensishave shown high activity against Klebseillasp., E. coliand V. c h o lera. The other Streptomyces species like S. aurofasciculus and S. flavoviridishave shown medium activity against the
pathogens. The present study could be drawn that marine environment yields a greater number of isolates per source
that is comparable with that obtained from mangrove soils. On the other side, the number of isolates obtained from
mangrove sediments is lower, particularly in the case of Actinobacteria. The present study also shows that the two study
area Barmanallha and Carbyn’s Cove) of south Andaman have high potential Actinobacteria with bioactivity useful for
identification of some novel compounds in future.
release of various kinds of compounds in the environment. In the present study, sediment samples from the three zones
of mangrove ecosystems viz.proximal, middle and distal were examined for Actinobacteria. A total of 23 Actinobacterial colonies were isolated. The THBC varied between 24 +0.82 X 10
6
in Proximal Zone to 50 +1.7 x 10
6
in the distal
zone in Burmanallah with an increasing trend in the THBC from proximal to the distal zone. While in Carbyn’s Cove,
THBC ranged between 20 +2.16 x 10
6
in the middle zone and 42 +1.7 x 10
6
in the distal zone. An increase in the
TAC towards sea was obtained in TAC from Nil in the distal zone to 4 +1.7 X 10
6
in the proximal zone in Burmanallah and in Carbyn’s Cove, TAC ranged between 0.0006 +0.0001 X 10
6
in the distal zone and 8 +0.47 X 10
6
in the
proximal zone. ANOSIM (R: 0.932) have shown that microbial community structure was not different between sites
and zones at a significance level of 1.7% . This also confirmed the similarity seen in the MDS. The diversity is high in
the proximal stations and in the distal zone of Carbyn’s Cove. The Actinobacteria viz. Micromonosporasp., Streptomyces
aburaviensis, Streptomyces aurantiogriesius, Streptomyces aurofasciculus, Streptomyces flavoviridisand Nocardia astreoides.
S. aurantiogriesiushave shown the maximum activity with more than 10 mm zone of inhibition against Klebseillasp.,
E. coli, V. choleraand S. flexheri. While S. aburaviensishave shown high activity against Klebseillasp., E. coliand V. c h o lera. The other Streptomyces species like S. aurofasciculus and S. flavoviridishave shown medium activity against the
pathogens. The present study could be drawn that marine environment yields a greater number of isolates per source
that is comparable with that obtained from mangrove soils. On the other side, the number of isolates obtained from
mangrove sediments is lower, particularly in the case of Actinobacteria. The present study also shows that the two study
area Barmanallha and Carbyn’s Cove) of south Andaman have high potential Actinobacteria with bioactivity useful for
identification of some novel compounds in future.