Sentences with phrase «photosynthetic activity of»

Factors affecting N fixation are growth of bacteria and / or host plants, photosynthetic activity of host plants, available mineral N and type of bacteria, Stout (1990).

Recently, laboratory experiments with live foraminifera have demonstrated that the photosynthetic activity of algal symbionts and the carbonate ion concentration -LRB-[CO32 --RSB--RRB- of seawater also affect shell d18O values.

Hence, it could be suggested that the small differences in the calcification rates observed between 100 mg / L and 200 mg / L calcium additions during the day could be a result of relatively mediocre photosynthetic activities of the endo - symbionts, but this should be further studied.

Not exact matches

Listening to how projected sound reverberates through kelp beds allows scientists to eavesdrop on environmental factors such as water temperature and photosynthetic activity, bioacoustician Jean - Pierre Hermand reported June 28 at a meeting of the Acoustical Society of...

Listening to how projected sound reverberates through kelp beds allows scientists to eavesdrop on environmental factors such as water temperature and photosynthetic activity, bioacoustician Jean - Pierre Hermand reported June 28 at a meeting of the Acoustical Society of America.

Incorporation of CNTs into chloroplasts extracted from plants enhanced choloroplast's photosynthetic activity by 49 % compared to the control.

This nano - bio approach is believed to increase the breadth of the solar spectrum that is used to make energy and is expected to contribute to the development of biomimetic materials with enhanced photosynthetic activity and improved stability towards oxidative degradation.

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

And will be taken up by the plant and will increase the concentration of carbon dioxide around RuBisCo inside the plant and increase its activity and photosynthetic yields.

His research team envisions a series of interacting processes, or feedbacks, that maintained oxygen at very low levels principally by modulating the availability of life - sustaining nutrients in the ocean and thus oxygen - producing photosynthetic activity.

To remedy that absence, Golden's lab, along with plant physiologist Takao Kondo and colleagues at Nagoya University in Japan, developed an easy - to - read gauge of changing photosynthetic activity in colonies of the cyanobacterium Synechococcus, a blue - green alga whose one - celled organisms divide as often as once every 5 to 6 hours.

«If trends continue, we can expect probably a doubling of primary production,» in photosynthetic activity undertaken by millions of algae, he adds.

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.

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.

The innovative aspect of this activity was the notion that the concept of macroscopic devices could be extended to the molecular level, and that it was possible to design supramolecular systems that, upon stimulation with external energy stimuli such as UV / Visible light, are capable of performing a variety of specific functions: (i) systems for information processing (e.g., wires, switches, antennas, plug / socket systems, extension cables, memories, logic gates, encoder / decoder, rudimentary neuron - like systems), (ii) devices that when powered by chemical energy or electrochemical energy or by light exhibit machine - like behavior (e.g., piston / cylinder systems, shuttles, lifts, rotary rings, dendritic photo - switchable boxes), and (iii) components for artificial photosynthetic systems.

In a study of local ecosystem sustainability, Mohan Wali and his colleagues at Ohio State University noted that as temperature rises, photosynthetic activity in plants increases until the temperature reaches 20 degrees Celsius (68 degrees Fahrenheit).

As I near the end of my life, I am amazed at how much power, technology, wealth and consumption humanity has acquired, and that has transformed our lives while at the same time undermining the very life support systems on which our existence and well - being depend — air, water, soil and food, photosynthetic activity and biodiversity.

The fluctuations in the CO2 curve (top) reflect seasonal changes in photosynthetic activity, which cause small differences between summer and winter concentrations of CO2.

In the case of the cyanobacterial mat - covered polygonal ponds on Bylot Island, the negative CO2 flux most likely resulted from high photosynthetic rates in the mats, and the modern dates for CH4 suggest that abundant labile compounds coming from a modern autochthonous pool could be the main C supply for microbial activity, including methanogenesis.

(1) globally, photosynthetic activity (fixation of biomass) on both the land and oceans is demonstrably on the increase as a consequence of both the so - called CO2 fertilization effect AND the vastly increased anthropogenic N & P nutrient input to the continental shelves; and this in turn is

Because plants grow more efficiently under diffuse light conditions such as this, global photosynthetic activity could increase, pulling more of the greenhouse gas carbon dioxide out of the atmosphere.

Human activity has also had a net negative effect on total global photosynthetic productivity since the most productive areas of land are directly in the path of urban sprawl [24].

Dr. Kiang also relates this work to research in astrobiology, particularly with regard to how photosynthetic activity produces signs of life at the global scale (e.g., biogenic gases like oxygen and photosynthetic pigments like chlorophyll) and how these may exhibit adaptations to alternative environments on extrasolar planets, resulting in other «biosignatures» that might be detected by space telescopes.