Thursday, 22 October, 2020
Home Tech Lonar lake turned pink due to 'Haloarchaea' microbes: Probe

Lonar lake turned pink due to 'Haloarchaea' microbes: Probe

The color of Lonar lake water in Maharashtra’s Buldhana district turned pink on account of a big presence of the salt-loving ‘Haloarchaea’ microbes, a probe carried out by a Pune-based institute has concluded.

Salt-loving microbes

  • Haloarchaea or halophilic archaea is a micro organism tradition that produces pink pigment and is present in water saturated with salt.

  • The oval-shaped Lonar lake, shaped after a meteorite hit the earth some 50,000 years in the past, is a well-liked vacationer hub.

  • The color of the lake water lately turned pink, which has not solely stunned locals, however scientists too.

The state forest division knowledgeable the Bombay Excessive Courtroom final month that it had already collected the lake water samples and despatched them for probe to the Nagpur-based Nationwide Environmental Engineering Analysis Institute (NEER) and the Agharkar Analysis Institute in Pune.

“Initially, we thought it was due to the red- pigmented Dunaliella algae on account of which the water may need turned pink. However through the investigation of the lake water samples, we discovered the water turned pink because of the giant presence of Haloarchaea inhabitants within the lake,” Agharkar Analysis Institute Director Dr Prashant Dhakephalkar mentioned.

“And because it (Haloarchaea) produces a pink pigment, it shaped a pink color mat on the water floor,” he mentioned.

The elevated salinity and pH facilitated the expansion of halophilic microbes, primarily Haloarchae, he mentioned.

The opposite scope of the investigation was to seek out out whether or not the color attributed to the water was everlasting.

“So, we allowed the pattern water to face nonetheless for a while and we came upon that the biomass settled on the backside and the water grew to become clear and clear,” he mentioned. “So principally, it was the biomass of those microbes and due to that the floor of the water turned pink or pink and as quickly because the biomass subsided, the color disappeared,” he defined.

The scientist mentioned the color of the lake is now returning to authentic because the wet season has kicked in, permitting dilution of the water. Due to that, the salinity and pH/alkalinity ranges have additionally come down and inexperienced algae have began rising within the water physique.

Dhakephalkar mentioned through the investigation, additionally they got here throughout an fascinating incidental discovering associated to flamingos that go to the lake. The plumage of the fowl is pink or reddish in color due to ingestion of carotenoids-rich meals, he mentioned.

“This micro organism, which produces a pink pigment, is ingested by these birds they usually get carotenoid-rich meals, due to that their plumage is pink in color. So earlier than we seen it, these flamingos may need seen the pink color on the lake and landed there,” he mentioned. He mentioned this might be one other fascinating facet to seek out out. PTI

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