|
1
|
Behera S, Tanuku NRS, Moturi SRK, Loganathan J, Modali S, Tadi SR, Rachuri V. Huge anthropogenic microbial load during southwest monsoon season in coastal waters of Kakinada, Bay of Bengal. MARINE POLLUTION BULLETIN 2023; 192:114977. [PMID: 37167663 DOI: 10.1016/j.marpolbul.2023.114977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 05/13/2023]
Abstract
To examine the influence of anthropogenic activities on the marine ecosystem near the coastal waters of the port city, Kakinada, a study was conducted to investigate the abundance of heterotrophic, indicator and pathogenic bacteria during the spring inter monsoon (SIM) and southwest monsoon (SWM) seasons. A drastic change in the marine bacteria due to the input of allochthonous bacteria during SWM was noticed. An order of magnitude higher abundance of indicators (Escherichia coli and Enterococcus faecalis) and bacterial pathogens (Proteus mirabilis and Pseudomonas aeruginosa) was observed during SWM. In contrast, Chlorophyll-a, heterotrophic bacterial abundance, Aeromonas hydrophila and Klebsiella pneumoniae were higher during SIM. A significant increase in some of the indicator and pathogenic bacterial abundance due to moderate rainfall suggests that the improper drainage system in the city could spread these bacteria, posing a considerable threat to both environment and human health.
Collapse
Affiliation(s)
- Swarnaprava Behera
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530017, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Naga Radha Srinivas Tanuku
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530017, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| | - Sri Rama Krishna Moturi
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530017, India
| | - Jagadeesan Loganathan
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530017, India
| | - Sravani Modali
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530017, India
| | - Satyanarayana Reddy Tadi
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530017, India
| | - Vivek Rachuri
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawson's Bay Colony, Visakhapatnam 530017, India
| |
Collapse
|
|
2
|
Çelik T, Sevim A. Bacterial pathogens from Diprion pini L. (Hymenoptera: Diprionidae) and their biocontrol potential. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01161-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
|
3
|
Complete Genome Sequence of Enterobacter sp. Strain R4-368, an Endophytic N-Fixing Gammaproteobacterium Isolated from Surface-Sterilized Roots of Jatropha curcas L. GENOME ANNOUNCEMENTS 2013; 1:1/4/e00544-13. [PMID: 23908287 PMCID: PMC3731841 DOI: 10.1128/genomea.00544-13] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Enterobacter sp. strain R4-368 is one of the few characterized Jatropha endophytic diazotrophic bacteria and was isolated from surface-sterilized roots. This bacterium shows strong growth-promoting effects, being able to increase plant biomass and seed yields. Enterobacter sp. R4-368 is the second fully sequenced diazotrophic Enterobacter species. The sequence information shall facilitate the elucidation of the molecular mechanisms of plant growth promotion, nitrogen fixation in nonlegume plant species, and evolution of biological nitrogen fixation systems.
Collapse
|