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#photosynthesis

1 post1 participant0 posts today
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Petra van Cronenburg

"Microplastics are now a ubiquitous part of our daily physical reality. They suffuse our #air, our #soil, the #food we eat and the #water we drink. They’re being detected everywhere, from Antarctic sea ice to human brains. A new #study published reveals how #microplastics hinder #photosynthesis across a wide range of plant species—including crucial food #crops." scientificamerican.com/article

Scientific American · Microplastic Pollution Is Messing with Photosynthesis in PlantsBy Joanna Thompson
#plasticPollution#foodSecurity#plants
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Lukas VFN 🇪🇺

#MolecularClock analysis shows #bacteria used oxygen long before widespread photosynthesis
phys.org/news/2025-04-molecula

A geological timescale for bacterial #evolution and oxygen adaptation science.org/doi/10.1126/scienc

"the earliest aerobic transition occurred in an ancestor of photosynthetic #cyanobacteria, indicating that the ability to utilize trace amounts of oxygen may have allowed the development of genes central to oxygenic #photosynthesis."

Illustration of chains of green bacteria and geologic layers
Public
Steve Dustcircle 🌹

#Microplastics Hinder #Plants’ #Photosynthesis, threatening Massive #Crop and #Seafood Losses

juancole.com/2025/03/microplas

Informed Comment · Microplastics Hinder Plants' Photosynthesis, threatening Massive Crop and Seafood LossesBy Jack Marley, The Conversation (The Conversation) - A graph I saw in high school appeared to show the Earth breathing. It was a graph that plotted carbon dioxide in the atmosphere over the course of the 20th century and into the 21st. CO₂ had risen steadily, and then more rapidly, but it hadn’t gone up in a straight line. Each year it had fallen sharply before rising to a new peak, increasing over time in an upwards zig-zag. What explained this annual, temporary fall in CO₂, the gas that is overwhelmingly responsible for climate change? The answer was photosynthesis,
Public
MediaFaro Magazine

These plants photosynthesise deep in the arctic even when there’s no light.

Under the sea ice during the Arctic’s pitch-black polar night, cells power photosynthesis on the lowest light levels ever observed in nature.

mediafaro.org/article/20250302

WIRED · These Plants Photosynthesize Deep in the Arctic Even When There’s No LightBy Asher Elbein
#Plants#Arctic#Photosynthesis
Public
CelloMom On Cars

"For the past century, the extra CO2 has led to more efficient #photosynthesis in tropical trees.

This is good news, as more efficient tropical forests can absorb more CO2, helping to slow down climate change. This finding comes from a new research method that allows scientists to analyze the effects of CO2 up to 100 years into the past."

phys.org/news/2025-02-century-

Phys.org · A century of extra carbon dioxide boosts photosynthesis in tropical treesBy Wageningen University
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Mikko Tuomi

From large trees in the Amazon jungle to houseplants to seaweed in the ocean, #green is the color that reigns over the #plant kingdom.

Why green, and not blue or magenta or gray?

Although plants absorb almost all the photons in the red and blue regions of the light spectrum, they absorb only about 90% of the green photons.

Plants ignore the most energy-rich part of sunlight because stability matters more than efficiency, according to a new model of #photosynthesis.

quantamagazine.org/why-are-pla

Quanta Magazine · Why Are Plants Green? To Reduce the Noise in Photosynthesis.By Rodrigo Pérez Ortega
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