Marine algae implants could boost crop yields

Scientists have discovered the gene that enables marine algae to make a unique type of chlorophyll. They successfully implanted this gene in a land plant, paving the way for better crop yields on less land.

Apple preharvest drop not linked to xylem functionality

Heat stress induces and accelerates leaf senescence, which is characterized by a loss of chlorophyll and cellular membrane deterioration, as well as oxidative damage). Leaf senescence can be exacerbated by the hormone ethylene, ...

Shedding light on photosynthesis at sea

Plants that live on land, such as spinach, grow by using sunlight to perform photosynthesis. How, then, do algae photosynthesize in the deep sea, an environment where only a little light reaches them?

Chlorophyll may biochemically recycle antioxidants

Chlorophyll, the green molecule that makes photosynthesis possible, may provide underappreciated dietary benefits, offering up yet one more reason to eat those leafy green vegetables.

NASA's S-MODE field campaign deploys to the Pacific Ocean

When the research vessel Bold Horizon sailed from Newport, Oregon, in early October, it joined a small armada of planes, drones, and other high-tech craft chasing the ocean's shapeshifting physics.

How does climate change impact fall foliage?

Although fall officially began on September 22, the trees around Palisades, New York, don't seem to know it yet. At the Columbia Climate School's Lamont-Doherty Earth Observatory, a camera sits on a rooftop monitoring the ...

For advance drought warning, look to the plants

Among the extreme weather impacts resulting from climate change, drought is a growing problem around the globe, leading to frequent wildfires, threats to water resources, and greater food insecurity.

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Chlorophyll

Chlorophyll (also chlorophyl) is a green pigment found in almost all plants, algae, and cyanobacteria. Its name is derived from the Greek words χλωρος, chloros ("green") and φύλλον, phyllon ("leaf"). Chlorophyll is an extremely important biomolecule, critical in photosynthesis, which allows plants to obtain energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. However, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues. Chlorophyll was first isolated by Joseph Bienaimé Caventou and Pierre Joseph Pelletier in 1817.

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