Sentences with phrase «of photosynthetic»

However, the Earth harbors a greater diversity of photosynthetic organisms than vascular plants, and includes algae, cyanobacteria, and anoxygenic photosynthetic bacteria, all of which occur in a wide array of colors, due to adaptation and acclimation to different light and chemical environments.

Simulations aim to understand how different irradiance spectra affect a planet's habitability and climate dynamics and its radiance signature, due to the spectral absorbance properties of different atmospheres and different surface spectral albedos resulting from the gradual spread of life over land and adaptations of photosynthetic pigments to other light regimes.

Nitrogen from agricultural runoff and sewage stimulates the growth of photosynthetic plankton on the surface of coastal waters.

The 1980 paper «A biochemical model of photosynthetic CO2 assimilation in leaves of C3 species,» has had over 1,500 th citations.

Reasoning that, because it fluctuated daily, water vapour was continually recycling itself in and out of the atmosphere, he turned his attention to carbon dioxide, a gas resident for a long time in the atmosphere whose concentration was only (at that time) dramatically changed by major sources such as volcanoes or major drawdowns such as unusual and massive episodes of mineral weathering or the evolution of photosynthetic plants: events that occur on very long, geological timescales.

The timing of the glaciation also seems to coincide with the evolution of photosynthetic life, which would have drastically reduced greenhouse gases through the release of oxygen.

Very interesting, but I wonder if the process wouldn't be cheaper with nuclear power and hydrogen supply instead of photosynthetic.

««⠉ light saturation — As the light intensity is raised, the rate of photosynthetic production increases.

It can be expressed on a short - term basis as the ratio of photosynthetic carbon gain per unit transpirational water loss, or on a seasonal basis as the ratio of net primary production or agricultural yield to the amount of available water.

These single - celled organisms are the principal agents of photosynthetic carbon fixation in the ocean.

water - use efficiency carbon gain in photosynthesis per unit water lost in evapotranspiration; can be expressed on a short - term basis as the ratio of photosynthetic carbon gain per unit transpirational water loss, or on a seasonal basis as the ratio of net primary production or agricultural yield to the amount of available water

«Modification of the Response of Photosynthetic Productivity to Rising Temperature by Atmospheric CO2 Concentrations: Has Its Importance Been Underestimated?»

As both an «electrograph» (meaning it can undergo direct electron transfers from an electrode), and an «acetogen» (meaning it can direct nearly 90 - percent of its photosynthetic products towards acetic acid), M. thermoacetica serves as the ideal model organism for demonstrating the capabilities of this hybrid artificial photosynthesis system.

Green foods contain chlorophyll, a pigment responsible for their green color and a critical component of the photosynthetic process.

Even more crustal minerals were formed by plate tectonics with the help of lubricating ocean water, atmospheric oxygen from the successful development of photosynthetic microbes, and land - based lichens (of algae and fungi) and mosses which were followed by deep - rooted plants that hastened the erosion and weathering of surface rocks with the help of biochemical action and the creation of soils as well as new clay minerals.

Grand Prismatic Spring, with extending fingers of photosynthetic bacterial mats.

Remote Sensing of Life: Polarimetric Signatures of Photosynthetic Pigments as New Biomarkers, Berdyugina, S.V., Kuhn, J.R., Harrington, D.M., Santl - Temkiv, T., Messersmith, E.J., International Journal of Astrobiology, 15, 45 - 56 (2016) PDF Download

Eros is an ortholog of the plant protein Ycf4, which is necessary for expression of proteins of the photosynthetic photosystem 1 complex, itself also an NADPH oxio - reductase.

Reasoning that, because it fluctuated daily, water vapour was continually recycling itself in and out of the atmosphere, he turned his attention to carbon dioxide, a gas resident for a long time in the atmosphere whose concentration was only (at that time) dramatically changed by major sources such as volcanoes or major drawdowns such as unusual and massive episodes of mineral weathering or the evolution of photosynthetic plants: events that occur on very long, geological timescales.

Objective: To understand the first steps in the evolution of photosynthetic eukaryotes and the impact plastidial endosymbioses (involving cyanobacteria or unicellular algae) had on the genomes of these organisms that are critical to the functioning of ecosystems.

Visit the Frontiers of Photobiology: Nobel Lecture by Aziz Sancar (The Nobel Prize in Chemistry 2015 «for mechanistic studies of DNA repair») Nobel Lecture by Roger Y. Tsien (The Nobel Prize in Chemistry 2008 «for the discovery and development of the green fluorescent protein, GFP») Interviews with Johann Deisenhofer, Robert Huber, Hartmut Michel (The Nobel Prize in Chemistry 1988 «for the determination of the three - dimensional structure of a photosynthetic reaction centre»)

This decrease results because plant respiration also increases with temperature, and some of the photosynthetic gains (that lead to increased productivity) are lost through a) growth and maintenance respiration (Ryan et al. 1995), or b) seasonal differences between photosynthetic gains in the spring and increased respiration in the fall.

1972 Andrew Alm Benson for his discovery of ribulose among products of photosynthetic carbon dioxide assimilation and for his other contributions to the elucidation of this process

One year later, Hartmut Michel was awarded the 1988 Nobel Prize in Chemistry «for the determination of the three - dimensional structure of a photosynthetic reaction centre», together with Johann Deisenhofer and Robert Huber.

Recent pulsed - laser experiments on parts of photosynthetic complexes reveal a time - resolved picture of the energy transport.

As proposed by Andrew Goldsworthy in 1987, cyanobacteria and later chloroplast - related protists and plants developed after microbes that used a purple pigment bacteriorhodopsin that absorbs green light dominated the oceans, and so the new photosynthetic cyanobacteria were forced to use the left - over light with chlorophyll that reflects green light, which was too complex to change even after purple - reflecting photosynthetic lifeforms were no longer dominant (Debora MacKenzie, New Scientist, September 10, 2010 — more on the evolution of photosynthetic life and plants on Earth).

After over three billion years of evolution in the oceans, multi-cellular life — beginning with green algae, fungi, and plants (liverworts, mosses, ferns, then vascular and flowering plants)-- began adapting to land habitats by creating a new «hypersea,» and adding anomalous shades of green to Earth's coloration more than 472 million years ago (Matt Walker, BBC News, October 12, 2010; and Qiu et al, 1998 — more on the evolution of photosynthetic life and plants on Earth).

The electrical capacitance, which shows the ability of a leaf to store a charge, stayed roughly constant at a minimum value during dark periods and increased rapidly during light periods, implying that electrical capacitance was a reflection of photosynthetic activity.

Scientists from the BOREA research unit first suspected the presence of microalgae in Paris streets after noting the characteristic green or brown color of gutter water and observing the presence of bubbles, which are the result of photosynthetic activity.

Currently, the method is being used to assess the optical properties of photosynthetic antenna proteins in various states of assembly, and to measure other protein - protein interactions at the single - molecule level.

The methodology is demonstrated on two model systems: the time - dependent spontaneous dissociation of photosynthetic light - harvesting antenna complexes and direct observation of DNA strands binding and unbinding in solution.

PYP is a receptor for blue light that is part of the photosynthetic machinery in certain bacteria.

In some cases, an attached fluorometer (6) collects data on the water's chlorophyll content, helping researchers understand the vertical distribution of photosynthetic plankton.

Plants and algae, as well as certain fungi and bacteria, also synthesize carotenoids, and in all of these organisms the pigments form part of the photosynthetic machinery.

Dr. Worden says her collaborators are interested in understanding the origins of photosynthetic life, in part because it played a crucial role in allowing other life forms, including humans, to exist.

The carbon contained in the zircon has a characteristic signature — a specific ratio of carbon - 12 to carbon - 13 — that indicates the presence of photosynthetic life.

The paper «Loss of photosynthetic efficiency in the shade.

Meyer, a chemist at University of North Carolina at Chapel Hill and director of its Energy Frontier Research Center in Solar Fuels, noticed that two separate groups of researchers working on two separate parts of the photosynthetic reaction happened to be using the same class of catalyst — ones with an atom of the metal ruthenium surrounded by organic molecules.

The team, which also includes Carnegie's Ari Kornfeld and Joseph Berry, discovered that a protein, called KEA3, is crucial for immediate adjustment of photosynthetic efficiency in fluctuating light conditions.

Just as oxygen can rust iron that makes up a horseshoe or frying pan, it can damage the iron - and - sulfur proteins of the photosynthetic apparatus.

The set of spinach proteins, known as Photosystem I, is a well - known component of the photosynthetic process.

This is simplest of all types of photosynthetic systems, Schulten says.

The nitrogen - eaters belong to two families of photosynthetic cyanobacteria and a distantly related proteobacteria group, the researchers report in the 9 August issue of Nature.

«Having a better understanding of where the energy levels are will be very helpful for establishing the structure - function relationships of these photosynthetic reaction centers.»

But enormous blooms of photosynthetic algae also cover the snow - strewn ice sheet every summer.

So just as different cells in a leaf contain different amounts of chlorophyll, coral cells seem to house different amounts of the photosynthetic algae that makes their food, Symbiodinium.

He and colleagues have determined what gives cholera bacteria their curved shape and whether it matters (a polymer protein, and it does matter; the curve makes it easier for cholera to cause disease), how different wavelengths of light affect movement of photosynthetic bacteria (red and green wavelengths encourage movement; blue light stops the microbes in their tracks), how bacteria coordinate cell division machinery and how photosynthetic bacteria's growth changes in light and dark.

Huang's research addresses fundamental questions about the rules bacteria live by — for instance, what determines their shape and how different wavelengths of light affect the movement of photosynthetic microbes (SN: 10/14/17, p. 17).

SAN FRANCISCO, CALIFORNIA — About 1 % of the light that strikes plants is re-emitted as a faint, fluorescent glow — a measure of photosynthetic activity.

Chloroplasts alone absorb light only from the visible portion of the solar spectrum, allowing access to only about 50 % of the incident solar energy radiation, and less than 10 % of full sunlight saturates the capacity of the photosynthetic apparatus.