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increase in photosynthesis and biomass.

As well as in plants and animals, carbon is present in the Earth’s crust, in rocks, soils and fossil fuels (coal, oil and gas), in the sea, and in the air as greenhouse gases – and it’s cycled between these places by various processes, including erosion, mining, burning, respiration, decay, photosynthesis and absorption.

KS3 biology Quiz on "PLANTS and PHOTOSYNTHESIS" …

The Diurnal Canopy Photosynthesis Simulator (DCaPS) online application, calculates diurnal (period from sunrise to sunset) canopy CO2 assimilation and daily biomass increment for a crop under well-watered conditions. DCaPS is now publicly available at .

Does 20% increase in photosynthesis in crops = huge …

Does 20% increase in photosynthesis in ..

Food production depends on photosynthesis, the process by which plants capture sunlight and convert it into plant growth, biomass and grain. In the next decades, the world population is expected to reach 9.5 billion and food demand will increase significantly, so improving photosynthesis has become a global research priority.

Plant researchers have developed an online application that predicts how crop growth is affected by photosynthetic changes at the molecular, cellular or leaf level of plants.

How does photosynthesis cause mass to increase in …

In natural photosynthesis bacteria, algae and plants use solar energy to produce biomass. However, in evolution selective pressure is directed towards reproductive success of the organisms, not for high biomass production.

Microbial mats in Bahamian hypersaline lagoons are affected by the combination of salinity fluctuations and external nutrient inputs, both of which are seasonally variable. The purpose of this study was to examine the singular and combined effects of salinity and nutrient (N+P) stress on primary production, extracellular enzyme activity, and the composition of the photoautotroph community in this episodically varying extreme environment. Anoxygenic phototrophic bacteria were able to increase their relative abundance when nutrients were supplied under hypersaline conditions (300 g l-1). When salinities were lowered (38 g l-1) and nutrients added, extracellular enzyme activity (aminopeptidase, á-glucosidase, and â-glucosidase), rates of oxygenic photosynthesis, and phototroph biomass increased in the oxic surface layers of the mat. Once salinity stress had been lowered, oxygenic photosynthesis allowed the proliferation of Cyanobacteria, heterotrophic activity, and a corresponding reduction in the abundance of anoxygenic phototrophic bacteria. On reduction of nutrient stress, mat phototrophs responded by increasing biomass (using either anoxygenic or oxygenic photosynthesis, or both). In this hypersaline system, seasonal as well as short-term (days) variations in environmental conditions may promote structural changes in the mat community which alter the rates of major processes such as oxygenic photosynthesis and heterotrophy, and illustrate the cyclic behavior of microbial dormancy and proliferation in this extreme environment. Cycles in nutrient input and salinity are primary forcing factors for the maintenance of a dynamic and diverse (both structurally and functionally) benthic microbial community in a small hypersaline lagoon, Salt Pond, on San Salvador Island, Bahamas.

Biomass is a renewable energy source because the energy it contains comes from the sun. Through the process of photosynthesis, chlorophyll in plants captures the sun's energy by converting carbon dioxide from the air and water from the ground into carbohydrates, complex compounds composed of carbon, hydrogen, and oxygen. When these carbohydrates are burned, they turn back into carbon dioxide and water and release the sun's energy they contain. In this way, biomass functions as a sort of natural battery for storing solar energy. As long as biomass is produced sustainably—with only as much used as is grown—the battery will last indefinitely.

Effects of elevated CO 2 and temperature on phytoplankton community biomass, species composition and photosynthesis during an autumn bloom …
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To Feed the World, Improve Photosynthesis

We are caught up, as organic beings, in the naturalprocess through which the earth accepts energy from the sun andthen releases it. There has been life on Earth for at least threeand a half billion years, and over this time there has been aclear and constant evolution in the way energy is used. The firstliving things may have obtained energy from organic moleculesthat had accumulated in their environment, but photosyntheticautotrophs, able to capture energy from sunlight, soon evolved,making it possible for life to escape this limited niche. Theexistence of autotrophs made a place for heterotrophs, which useenergy that has already been captured by autotrophs.

Carbon Cycle and the Earth's Climate - Columbia University

It is not clear how photosynthesis got started,although it is a combination of two systems that can be foundsingly in some life forms that still exist. But blue-green algae,which are among the earliest organisms documented in the fossilrecord, already employed the two-stage process that waseventually handed down to green plants. This is a complexsequence of events that has a simple outcome. Carbon dioxide (ofwhich there was an abundance in the earth's early atmosphere)reacts with water through energy from light, fixing carbon andreleasing oxygen, and a portion of the energy remains captive aslong as the carbon and the oxygen remain apart. Plants releasethis energy when and where necessary to conduct their metabolicbusiness (Starr & Taggart, 1987).

What is more important than being green these days

When scientists talk about productivity they are specifically talking about how much carbon ends up stored in the living biomass—roots, trunks, and leaves of plants—after they tally up carbon gains through photosynthesis and carbon losses through respiration. This tally of gains minus losses is called “net primary production.” Scientists estimate net primary production by observing how leafy vegetation is and how much sunlight it is absorbing, which can both be measured by satellite. Combined with climate data on rainfall, temperature, and available radiation, the satellite observations reveal where carbon intake increased—and biomass grew—across the globe.

Deforestation and Carbon Emission

Transgenic lines with increased SBPase protein levels and activity were grown under greenhouse conditions and showed enhanced leaf photosynthesis and increased total biomass and dry seed yield.

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