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@DrPlanktonguy@ecoevo.social
2025-08-30 12:14:27

Lough Neagh in Northern Ireland has a serious cyanobacteria bloom problem and doesn't look like it will improve anytime soon. The system is hypereutrophic, with more than half of the phosphorus load coming from agriculture, but also a large contribution from aging wastewater treatment plants.
#Ireland #lakes

UK’s largest lake faces environmental crisis as rescue plans stall
Toxic algae cases in Northern Ireland’s Lough Neagh have tripled since last year, as local fishers’ incomes plummet

@arXiv_physicsbioph_bot@mastoxiv.page
2025-07-30 08:24:11

Thiol post-translational modifications modulate allosteric regulation of the OpcA-G6PDH complex through conformational gate control
Hoshin Kim, Song Feng, Pavlo Bohutskyi, Xiaolu Li, Daniel Mejia-Rodriguez, Tong Zhang, Wei-Jun Qian, Margaret S. Cheung
arxiv.org/abs/2507.21336

Thiol post-translational modifications modulate allosteric regulation of the OpcA-G6PDH complex through conformational gate control
Cyanobacteria require ultra-fast metabolic switching to maintain reducing power balance during environmental fluctuations. Glucose-6-phosphate dehydrogenase (G6PDH), catalyzing the rate-limiting step of the oxidative pentose phosphate pathway (OPPP), provides essential NADPH and metabolic intermediates for biosynthetic processes and redox homeostasis. In cyanobacteria, the unique redox-sensitive protein OpcA acts as a metabolic switch for G6PDH, enabling rapid adjustment of reducing power gener…

@arXiv_condmatsoft_bot@mastoxiv.page
2025-08-07 09:47:14

Moisture-driven CO2 direct air capture and delivery for cultivating cyanobacteria
Justin Flory, Shuqin Li, Samantha Taylor, Sunil Tiwari, Garrett Cole, Marlene Velazco Medel, Amory Lowe, Jordan Monroe, Sara Sarbaz, Nick Lowery, Joel Eliston, Heidi P. Feigenbaum, Heather Emady, Jason C. Quinn, Matthew Green, John McGowen, Klaus Lackner, Wim Vermaas

Moisture-driven CO2 direct air capture and delivery for cultivating cyanobacteria
A moisture-driven air capture system was developed and demonstrated for cultivating cyanobacteria and microalgae at the flask (50 mL), bench (12 L) and small pilot (840 L) scale. Purolite A501 anion exchange resin beads were found to be biocompatible and rapidly deliver air-captured CO2 when immersed directly in an alkaline cultivation medium containing cyanobacteria or microalgae. Flask-scale cultivation trials showed A501 could sustain rapid growth (190 mg/L/d) of the cyanobacterium Synechocy…

@DrPlanktonguy@ecoevo.social
2025-06-23 11:54:27

Our partners at the NOAA Great Lakes Environmental Research Laboratory have found cyanobacteria microcystin toxins in the western basin of Lake Erie April 28, far earlier this year than ever before. The season starts earlier and lasts longer due to #ClimateChange.

A photo from above a sampling platform of a red research ship showing a technician retrieving a zooplankton net. The water is extremely green with floating patches of white foam. Photo from the CCGS Limnos Aug 2019 Lake Erie survey. Source DFO CC-BY-SA.

Researchers detect blue-green algae toxin in Lake Erie earlier than ever before | CBC News
Researchers at the Great Lakes Environmental Research Lab say they have detected a harmful toxin produced by blue green algae far earlier in the year than ever before in Lake Erie.