CO2 is removed from the atmosphere
by plant photosynthesis (123 ± 8 PgC / year).
On the other hand, this option would also exclude the sequestration benefits provided
by plant photosynthesis in growing biofuel and biomass crops.
Since the amounts absorbed or emitted
by plant photosynthesis and animal respiration are an order of magnitude greater than those emitted by humans, it is clear that a slight shift in either of these could represent a major shift in the balance.
Soil provides an abundant, readily available storage option — one designed by nature to hold carbon removed from air
by plant photosynthesis.
Wennberg says that combining such measurements with OCO - 2 data could help researchers to detect hourly variations in CO2 production caused
by plant photosynthesis — or even by rush - hour traffic in some large urban areas.
Not exact matches
Editor's note (01/05/18): This article has been updated to clarify that the study
by Stephen Long and others published in Science in 2016 involved improving the efficiency of
photosynthesis in tobacco
plants.
This means that the energy consumption and carbon footprint of marijuana growers would go way down, as the light the
plants need for
photosynthesis could be provided more naturally
by the sun.
The efficiency of natural
photosynthesis is limited
by light - absorbing pigments in
plants or bacteria, he says.
«In these environments that are dominated
by marine
plants,
photosynthesis and respiration cause large differences in CO2 concentrations and the addition of anthropogenic carbon make these day - to - night differences even larger than they would be without that extra carbon,» said George Waldbusser, an Oregon State marine ecologist and co-author on the study, who serves as Pacella's Ph.D. adviser.
Part of the problem is that the benefits of better
plant growth, thanks to higher carbon dioxide concentrations (
plants use CO2 for
photosynthesis) are more than offset
by the impact of higher temperatures and differing precipitation.
When these nanocomposites were incorporated into leaf chloroplasts of living
plants, the electron flow associated with
photosynthesis was enhanced
by 30 %.
Incorporation of CNTs enhanced electron flow associated with
photosynthesis by 49 % in extracted chloroplasts and
by 30 % in leaves of living
plants, and incorporation of cerium oxide nanoparticles (nanoceria) into extracted chloroplasts significantly reduced concentrations of superoxide, a compound that is toxic to
plants.
If
plant life does exist on a planet like Kepler - 186f, its
photosynthesis could have been influenced
by the star's red - wavelength photons, making for a color palette that's very different than the greens on Earth.
The BPEC cell developed
by the researchers is based on the naturally occurring process of
photosynthesis in
plants, in which light drives electrons that produce storable chemical energetic molecules, that are the fuels of all cells in the animal and
plant worlds.
But the fluorescence map, an unexpected secondary capability, provides a more direct measure of carbon fluxes: the amount mopped up
by plants during
photosynthesis or released during respiration.
Purdue University physicists are part of an international group using spinach to study the proteins involved in
photosynthesis, the process
by which
plants convert the sun's energy into carbohydrates used to power cellular processes.
Mycorrhizal fungi live in the roots of host
plants, where they exchange sugars that
plants produce
by photosynthesis for mineral nutrients that fungi absorb from the soil.
In the most recent (December 2003) issue of Progress in Oceanography, researchers suggest this whopping increase was caused
by a sudden influx of dead algae rich in carotenoids, pigments used
by some
plants for
photosynthesis.
And the satellite will also spy on
plants» carbon uptake
by measuring the weak fluorescence that is produced
by chlorophyll during
photosynthesis.
Although about 2 petagrams go into the oceans, another 1.1 to 2.2 petagrams — the missing sink — appears to vanish into the land, likely taken up
by plants during
photosynthesis.
SeaWiFS, on board the OrbView 2 (aka SeaStar) satellite measures the wavelengths of light reflected
by phytoplankton (microscopic marine
plants) and algae that use chlorophyll for
photosynthesis.
A
photosynthesis concept map might have «
plants» and «
photosynthesis» in different circles, plus a line from the first to the second labeled «make food
by.»
This was achieved
by increasing the brightness of the lights over the
plants, increasing the rate of
photosynthesis.
Nitrogen helps
plants produce proteins, including the key molecules that control
photosynthesis, the process
by which the sun's energy is captured and converted into the carbon compounds that are the raw material for growth.
As a possible step toward the goal of doubling food production
by 2050 to feed our expanding human population, researchers have transferred a key
photosynthesis gene from a blue - green algae into a tobacco
plant, according to a Nature news story.
This was found to be due in part to enrichment of genes involved in sugar metabolism and transport, likely an adaptation to
photosynthesis - derived
plant carbon, generated
by nature's «candy factories,» said Asaf Levy.
The team improved the
plant's water - use - efficiency — the ratio of carbon dioxide entering the
plant to water escaping —
by 25 percent without significantly sacrificing
photosynthesis or yield in real - world field trials.
Engineered
plants conserve 25 percent more water
by only partially opening their mouth - like stomata, allowing less water to escape through transpiration while carbon dioxide enters the
plant to fuel
photosynthesis.
Photosynthesis, the process
by which
plants, algae, and select bacteria convert the sun's light energy into chemical energy, takes place in a cellular organelle called the chloroplast.
«Unlike most
plants that get energy through
photosynthesis, dodder siphons off water and nutrients from other
plants by connecting itself to the host vascular system using structures called haustoria.
Professor Henry said
photosynthesis — the process
by which
plants converted sunlight into energy for growth and produce oxygen — was arguably the most important biological process on earth.
Like
plants on land, phytoplankton produce energy
by photosynthesis, pulling carbon dioxide from the atmosphere to fuel the process.
«
By manipulating photoprotection in
plants, it may be possible to improve the efficiency of
photosynthesis, and one potential outgrowth of that is higher crop productivity,» said Krishna Niyogi, a faculty scientist in Berkeley Lab's Division of Molecular Biophysics and Integrative Bioimaging and a UC Berkeley professor of
plant and microbial biology.
Basta kills
plants by «choking» them on the ammonia they produce during
photosynthesis.
Doubling of the carbon dioxide concentration will cause global
plant photosynthesis to increase
by about one third, according to a paper published in the journal Nature.
Photosynthesis is the process
by which
plants convert energy from the sunlight into chemical energy in the form of sugars.
The overall entropy of the universe increases during
photosynthesis as the sunlight dissipates, even as the
plant prevents itself from decaying
by maintaining an orderly internal structure.
Because
plants take up CO2 during
photosynthesis, it has long been assumed that they will provide a large carbon «sink» to help offset increases in atmospheric CO2 caused
by the burning of fossil fuels.
The ground breaking research, conducted
by scientists at the University of Sheffield, revealed why
plants using C4
photosynthesis — a complex set of structural and chemical adaptations that have evolved more than 60 times to boost carbon uptake compared to the ancestral C3
plants — grow so rapidly.
«Scientists discover C4
photosynthesis boosts growth
by altering size, structure of
plant leaves, roots.»
Professor Colin Osborne, lead author of the study and Associate Director of the University's Grantham Centre for Sustainable Futures, said: «
Photosynthesis powers most life on Earth because it converts solar energy into sugars which are used
by plants to grow.
«
Photosynthesis was such a powerful invention that it changed Earth's atmosphere
by producing oxygen, allowing diverse and complex life forms — algae,
plants, and animals — to evolve.»
Life is the dominant source of the molecular oxygen on our planet, as the gas is produced
by photosynthesis in
plants and microscopic, single - cell organisms.
In climate change scenarios simulated
by the model GOTILWA + — within the Consolider - Ingenio project Montes and the research project Med - Forestream — , net primary productivity of Spanish forests (how much carbon dioxide
plants take in during
photosynthesis minus how much carbon dioxide they release during respiration) will decrease from the second half of this century.
Exciton diffusion is also a basic mechanism underlying
photosynthesis:
Plants absorb energy from photons, and this energy is transferred
by excitons to areas where it can be stored in chemical form for later use in supporting the
plant's metabolism.
The weak but nevertheless detectable SIF signal emerges naturally on sunlight - exposed leaves, when chlorophyll molecules are excited
by absorbed photons, and is a proxy for
plant photosynthesis.
During the dry season, with no fog layer to reflect sunlight, the smaller cloud cover allows
plants to receive much higher radiation, increasing evaporation and
photosynthesis rates, another process missed
by the GCMs.
«They allow us to look into relationships between SIF and the gross primary production (GPP)-- the amount of carbon fixed
by plants through
photosynthesis — at scales never explored before.»
Photosynthesis was limited
by the amount of carbon that green
plants could scavenge out of the air.
According to University of British Columbia (UBC) research published this week in Scientific Reports, 30 per cent of the microbes in the Democratic Republic of the Congo's Kabuno Bay grow
by a type of
photosynthesis that oxidizes (rusts) iron rather than converting water into oxygen like
plants and algae.