... pigment that occurs naturally in plants and other photosynthetic organisms. Porphyrin is similar to a chlorophyll molecule and exists ... reaction centers. These centers mimic the mechanisms by which photosynthetic organisms convert sunlight into useful forms of energy ...
... of the catalyst is a manganese-containing complex modeled after those found in photosynthetic organisms. Electrolysis is the reverse of the process that occurs ... light, is a manganese-containing enzyme in the photosynthetic apparatus of living organisms. Robin Brimblecombe and Leone ...
... green algae is a term used to describe any of a large, heterogeneous group of prokaryotic, principally photosynthetic organisms. These little oxygenic (oxygen-producing ...
... anomaly in the carbon cycle. This may have resulted from the diversification of photosynthetic life that produced the oxygen that changed the atmosphere ... ultraviolet sunrays reaching the oceans, allowing photosynthetic organisms that previously lived deeper down ...
... advances in optoelectronics and portability make this a powerful technology for monitoring the in situ physiology of aquatic photosynthetic organisms such as green algae and cyanobacteria," the authors ...
... life. They found that at least some forms of microscopic marine life — the so-called "primary producers," or photosynthetic organisms such as algae and cyanobacteria in the ocean — had recovered ...
... that was deposited on a shallow submerged platform, which they deduced was photosynthetic. Tice said the temperature setting was probably somewhat ... comfortable. They would have been happy. "And that is significant because photosynthetic organisms, even bacteria, form the base ...
... severely when exposed to fluctuating light conditions. "Photosynthetic organisms must be able to manage absorbed ... , becoming potentially toxic." Grossman points out that photosynthetic organisms have developed a number of different mechanisms ...
Palo Alto -- Photosynthetic organisms need to cope with a wide range of light intensities, which can change ... of seconds to minutes. Too much light can damage the photosynthetic machinery and cause cell death ...
... are around, proteins will evolve to do a lot of chemistry using iron-sulfur clusters. "Then photosynthetic organisms evolved and started to produce oxygen ...
... comprise part of the biological carbon pump, whereby carbon 'fixed' from carbon dioxide by photosynthetic organisms in sunlit surfaces waters is exported ...
... , and are capable of obtaining hydrocarbon contents up to 86 percent of their dry weight. "As a group, algae may be the only photosynthetic organism capable of producing enough biofuel ...
... constraint on early carbon dioxide levels came from life itself. In the days before photosynthetic organisms spread across the globe, most life ...
... being more abundant but smaller than 'EukB' cells. Molecular techniques revealed that EukB largely comprised photosynthetic organisms called prymnesiophytes, most of which have never been cultured ...
... newly sequenced genome of the brown seaweed Ectocarpus siliculosus sheds light on how this complex photosynthetic organism has adapted to life on rocky shores ...
