Bacterial dynamics along the west coast of India during the non-monsoon and monsoon season

Variations in bacterial community at Chlorophyll Maximum (C-Max) depths along the west coast of India due to seasonal changes in the primary productivity

“…Bacterial carbon estimated based on abundance value increased significantly during monsoon season and showed a positive correlation with primary productivity measurement (Table 1). These findings align with previous research conducted in the Arabian Sea, which also indicates that the higher levels of phytoplankton growth during the monsoon season have an impact on the bacterial abundance and culturable bacterial communities (Ramaiah et al, 2005; Parab et al, 2022). These studies on the bacterial dynamics in upwelling regions have also shown that a correlation between bacterial productivity and primary productivity exists, underlining the crucial role played by bacteria.…”

Variations in bacterial community at Chlorophyll Maximum (C-Max) depths along the west coast of India due to seasonal changes in the primary productivity

“…Bacterial carbon estimated based on abundance value increased significantly during monsoon season and showed a positive correlation with primary productivity measurement (Table 1). These findings align with previous research conducted in the Arabian Sea, which also indicates that the higher levels of phytoplankton growth during the monsoon season have an impact on the bacterial abundance and culturable bacterial communities (Ramaiah et al, 2005; Parab et al, 2022). These studies on the bacterial dynamics in upwelling regions have also shown that a correlation between bacterial productivity and primary productivity exists, underlining the crucial role played by bacteria.…”

Elucidating the functional profiles of cultivable bacterial communities in the water and sediments during the southwest monsoon season, along the west coast of India

“…Despite showing wide diversity, the abundance of phylum Proteobacteria was significantly less in the monsoon season, as compared to the other seasons studied from this region. This results were in good accordance previous studies (Vijayan et al 2021, Parab et al 2022.…”

“…The copyright holder for this preprint this version posted July 13, 2023. ; https://doi.org/10.1101/2023.07.13.548871 doi: bioRxiv preprint Proteobacteria were not reported from any of the study regions. The complete absence of beta Proteobacteria in the water column during monsoon was in good accordance with the earlier study (Parab et al 2022) in the Arabian Sea region. However, Proteobacteria showed all three alpha, beta, and gamma morphotypes in the sediment sample, with beta Proteobacteria contributing the least.…”

“…Previous studies have consistently identified the phyla Proteobacteria, Firmicutes, and Actinobacteria as the predominant bacterial groups in this region. This finding further supports the notion that these phyla play a crucial role in shaping the bacterial composition and dynamics within the productive upwelling zone of the Arabian Sea (Amberkar et al 2021;Parab et al 2022). Firmicutes contributed maximum during the monsoon season showing an abundance of 71% each in both water and sediment.…”

“…In our previous research, we explored the diversity of cultivable and uncultivable microorganisms in this region during the monsoon season. Our findings indicated a greater bacterial diversity in the water column along the productive West coast of India (Parab et al 2022 andParab et al 2023, Pre-print BioRivx). Building upon these findings, our current study focuses on comparing the bacterial diversity in both water and sediment during the productive monsoon season.…”

Variations in bacterial community at Chlorophyll Maximum (C-Max) depths along the west coast of India due to seasonal changes in the primary productivity

“…Bacterial carbon estimated based on abundance value increased significantly during monsoon season and showed a positive correlation with primary productivity measurement (Table 1). These findings align with previous research conducted in the Arabian Sea, which also indicates that the higher levels of phytoplankton growth during the monsoon season have an impact on the bacterial abundance and culturable bacterial communities (Ramaiah et al, 2005; Parab et al, 2022). These studies on the bacterial dynamics in upwelling regions have also shown that a correlation between bacterial productivity and primary productivity exists, underlining the crucial role played by bacteria.…”

Elucidating the functional profiles of cultivable bacterial communities in the water and sediments during the southwest monsoon season, along the west coast of India

“…Despite showing wide diversity, the abundance of phylum Proteobacteria was significantly less in the monsoon season, as compared to the other seasons studied from this region. This results were in good accordance previous studies (Vijayan et al 2021, Parab et al 2022.…”

“…The copyright holder for this preprint this version posted July 13, 2023. ; https://doi.org/10.1101/2023.07.13.548871 doi: bioRxiv preprint Proteobacteria were not reported from any of the study regions. The complete absence of beta Proteobacteria in the water column during monsoon was in good accordance with the earlier study (Parab et al 2022) in the Arabian Sea region. However, Proteobacteria showed all three alpha, beta, and gamma morphotypes in the sediment sample, with beta Proteobacteria contributing the least.…”

“…Previous studies have consistently identified the phyla Proteobacteria, Firmicutes, and Actinobacteria as the predominant bacterial groups in this region. This finding further supports the notion that these phyla play a crucial role in shaping the bacterial composition and dynamics within the productive upwelling zone of the Arabian Sea (Amberkar et al 2021;Parab et al 2022). Firmicutes contributed maximum during the monsoon season showing an abundance of 71% each in both water and sediment.…”

“…In our previous research, we explored the diversity of cultivable and uncultivable microorganisms in this region during the monsoon season. Our findings indicated a greater bacterial diversity in the water column along the productive West coast of India (Parab et al 2022 andParab et al 2023, Pre-print BioRivx). Building upon these findings, our current study focuses on comparing the bacterial diversity in both water and sediment during the productive monsoon season.…”

Variations in bacterial community at Chlorophyll Maximum (C-Max) depths along the west coast of India due to seasonal changes in the primary productivity

“…Bacterial carbon estimated based on abundance value increased significantly during monsoon season and showed a positive correlation with primary productivity measurement (Table 1). These findings align with previous research conducted in the Arabian Sea, which also indicates that the higher levels of phytoplankton growth during the monsoon season have an impact on the bacterial abundance and culturable bacterial communities (Ramaiah et al, 2005; Parab et al, 2022). These studies on the bacterial dynamics in upwelling regions have also shown that a correlation between bacterial productivity and primary productivity exists, underlining the crucial role played by bacteria.…”

Elucidating the functional profiles of cultivable bacterial communities in the water and sediments during the southwest monsoon season, along the west coast of India

“…Despite showing wide diversity, the abundance of phylum Proteobacteria was significantly less in the monsoon season, as compared to the other seasons studied from this region. This results were in good accordance previous studies (Vijayan et al 2021, Parab et al 2022.…”

“…The copyright holder for this preprint this version posted July 13, 2023. ; https://doi.org/10.1101/2023.07.13.548871 doi: bioRxiv preprint Proteobacteria were not reported from any of the study regions. The complete absence of beta Proteobacteria in the water column during monsoon was in good accordance with the earlier study (Parab et al 2022) in the Arabian Sea region. However, Proteobacteria showed all three alpha, beta, and gamma morphotypes in the sediment sample, with beta Proteobacteria contributing the least.…”

“…Previous studies have consistently identified the phyla Proteobacteria, Firmicutes, and Actinobacteria as the predominant bacterial groups in this region. This finding further supports the notion that these phyla play a crucial role in shaping the bacterial composition and dynamics within the productive upwelling zone of the Arabian Sea (Amberkar et al 2021;Parab et al 2022). Firmicutes contributed maximum during the monsoon season showing an abundance of 71% each in both water and sediment.…”

“…In our previous research, we explored the diversity of cultivable and uncultivable microorganisms in this region during the monsoon season. Our findings indicated a greater bacterial diversity in the water column along the productive West coast of India (Parab et al 2022 andParab et al 2023, Pre-print BioRivx). Building upon these findings, our current study focuses on comparing the bacterial diversity in both water and sediment during the productive monsoon season.…”