the effect of biological high concentration of oxygen on plant pdf
the effect of biological high concentration of oxygen on plant pdf
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The Effect of Oxygen Concentration on Photosynthesis in ...

It was discovered by Warburg (1920) that high concentrations of oxygen inhibit the rate of photosynthetic oxygen evolution in the unicellular alga Chlorella. Since then, it has been confirmed by various authors that oxygen cconcentrations in the range 21–100 per cent have a marked inhibitory effect on photosynthesis, particularly at ...

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Effect of high consentrated dissolved oxygen on the plant ...

2010-1-1  Effect of high consentrated dissolved oxygen on the plant growth in a deep hydroponic culture under a low temperature A. Suyantohadi*, T. Kyoren***, M. Hariadi**, M.H. Purnomo**, T. Morimoto*** Agricultural Technology Faculty, University of Gadjah Mada (UGM) Sosioyustisia, Bulaksumur, Jogjakarta, Indonesia.

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Effect of oxygen concentration on plant growth ...

The effects of the nutrient solution oxygenation on the growth of tomato plants and colonization of plant roots by Pythium F707, an isolate with filamentous non-inflated sporangia, were investigated under hydroponic conditions. Lipoperoxidation was also estimated determining lipoxygenase activity and conjugated dienes. Tomato plants were grown under either a high (11-14%; Air

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Effect of elevated oxygen concentration on bacteria ...

2014-12-19  Effects of high molecular oxygen concentration on growth and metabolism of prokaryotes. In the late 1960s, it was reported that oxygen concentrations above 100% air saturation cause inhibition of metabolism and respiration in microorganisms [].A few years later, the labs of O.R. Brown and I. Fridovich investigated the toxic effect of hyperbaric oxygen on

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Effects of light intensity, oxygen concentration, and ...

The effects of various combinations of light intensity, oxygen concentration, and CO2 concentration on photosynthesis and growth in several algal types were studied. The results suggest the following. (1) Different algae show different responses to high oxygen concentrations and high light intensities. (2) Inhibition of photosynthesis (CO2 fixation and growth), if seen,

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Effect of elevated oxygen concentration on bacteria ...

2014-12-19  The response of bacteria, yeast, and mammalian and insects cells to oxidative stress is a topic that has been studied for many years. However, in most the reported studies, the oxidative stress was caused by challenging the organisms with H2O2 and redox-cycling drugs, but not by subjecting the cells to high concentrations of molecular oxygen.

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The effect of biological oxygen demand of cattle slurry ...

The application of animal manure slurries to soils may cause high short-term emissions of nitrous oxide (N 2 O). We performed studies on N 2 O emissions varying the contents of NH 4-N and microbial available organic carbon (measured as biological oxygen demand, BOD) of cattle slurry.Additionally the effect of slurry BOD on N 2 O emissions at different soil water contents

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Biochemical Oxygen Demand - Affecting Factors ...

Biochemical Oxygen Demand or alternatively termed as Biological Oxygen Demand (BOD) is the amount of oxygen needed or demanded by aerobic microorganisms to break down the organic matter present in a certain sample of water at a specific temperature and over a given time period.

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(PDF) Effect of chloride on biological nutrient removal ...

2022-1-4  The chloride concentration of synthetic wastewater was varied from 150 to 5,000 mg/L and the treatment. results are summarized in Figure 4. The

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Biological Treatment of High TDS Wastewater Request PDF

Carbonate content of Cd was influenced obviously by NaCl, with the decrease of 7.30%, 10.52% corresponding to low concentration and high concentration of NaCl, and

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Effects of high oxygen concentration on pro- and anti ...

2005-6-1  Effects of high oxygen concentration on pro- and anti-oxidant enzymes in peach fruits during postharvest periods. ... Effect of high oxygen modified atmosphere packaging on microbial growth and sensorial qualities of fresh-cut produce. ... Annual Review of Plant Physiology and Plant Molecular Biology, 42 (1991), pp. 145-188.

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Effect of high consentrated dissolved oxygen on the plant ...

2010-1-1  Effect of high consentrated dissolved oxygen on the plant growth in a deep hydroponic culture under a low temperature A. Suyantohadi*, T. Kyoren***, M. Hariadi**, M.H. Purnomo**, T. Morimoto*** Agricultural Technology Faculty, University of Gadjah Mada (UGM) Sosioyustisia, Bulaksumur, Jogjakarta, Indonesia.

More

Effects of light intensity, oxygen concentration, and ...

The effects of various combinations of light intensity, oxygen concentration, and CO2 concentration on photosynthesis and growth in several algal types were studied. The results suggest the following. (1) Different algae show different responses to high oxygen concentrations and high light intensities. (2) Inhibition of photosynthesis (CO2 fixation and growth), if seen,

More

Effect of elevated oxygen concentration on bacteria ...

2014-12-19  The response of bacteria, yeast, and mammalian and insects cells to oxidative stress is a topic that has been studied for many years. However, in most the reported studies, the oxidative stress was caused by challenging the organisms with H2O2 and redox-cycling drugs, but not by subjecting the cells to high concentrations of molecular oxygen.

More

Biochemical Oxygen Demand - an overview ScienceDirect

Daoliang Li, Shuangyin Liu, in Water Quality Monitoring and Management, 2019. 12.2.1.3 Biochemical Oxygen Demand. BOD, also called biological oxygen demand, is the amount of dissolved oxygen needed (i.e., demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

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Biochemical Oxygen Demand - Affecting Factors ...

Biochemical Oxygen Demand or alternatively termed as Biological Oxygen Demand (BOD) is the amount of oxygen needed or demanded by aerobic microorganisms to break down the organic matter present in a certain sample of water at a specific temperature and over a given time period.

More

The Effects of Sodium Percarbonate Generated Free

2020-5-5  This study assesses the effects of increasing concentrations of reactive oxygen species from the addition of sodium percarbonate on zooplankton in a small experimental setting using a natural plankton sample. It was found that the genus Daphnia showed moderate sensitivity to sodium percarbonate. Preliminary evidence suggests that the size of an ...

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(PDF) Effect of chloride on biological nutrient removal ...

2022-1-4  The chloride concentration of synthetic wastewater was varied from 150 to 5,000 mg/L and the treatment. results are summarized in Figure 4. The removal efficiency for SCOD was gradually decreased ...

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Factors Affecting Aerobic Respiration: 8 Factors Plants

2022-1-6  Specific response to higher CO 2 concentration varies with the particular kind of tissue and plant. The effect of CO 2 concentration is more significant when the temperature and oxygen supply are low. At a very high concentration of CO

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Effects of high oxygen concentration on pro- and anti ...

2005-6-1  Effects of high oxygen concentration on pro- and anti-oxidant enzymes in peach fruits during postharvest periods. ... Effect of high oxygen modified atmosphere packaging on microbial growth and sensorial qualities of fresh-cut produce. ... Annual Review of Plant Physiology and Plant Molecular Biology, 42 (1991), pp. 145-188.

More

Effect of high consentrated dissolved oxygen on the plant ...

2010-1-1  Effect of high consentrated dissolved oxygen on the plant growth in a deep hydroponic culture under a low temperature A. Suyantohadi*, T. Kyoren***, M. Hariadi**, M.H. Purnomo**, T. Morimoto*** Agricultural Technology Faculty, University of Gadjah Mada (UGM) Sosioyustisia, Bulaksumur, Jogjakarta, Indonesia.

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The Effect of Oxygen on the Radiosensitivity of

2019-8-14  The effect of oxygen concentration on the radiosensitivity of cells has been extensively investigated in bacteria, plants, and lower animals (1,2). Nearly all the biological materials studied have shown that, as oxygen concentration is increased from anoxia to that of air, there is a sharp, approximately threefold, increase in radiosensitivity; but sensitivity is little

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Toxicity, mechanism and health effects of some heavy metals

2014-11-15  Lead is an extremely toxic heavy metal that disturbs various plant physiological processes and unlike other metals, such as zinc, copper and manganese, it does not play any biological functions. A plant with high lead concentration fastens the production of reactive oxygen species (ROS), causing lipid membrane damage that ultimately leads to ...

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The Effects of Sodium Percarbonate Generated Free

2020-5-5  This study assesses the effects of increasing concentrations of reactive oxygen species from the addition of sodium percarbonate on zooplankton in a small experimental setting using a natural plankton sample. It was found that the genus Daphnia showed moderate sensitivity to sodium percarbonate. Preliminary evidence suggests that the size of an ...

More

(PDF) Effect of chloride on biological nutrient removal ...

2022-1-4  The chloride concentration of synthetic wastewater was varied from 150 to 5,000 mg/L and the treatment. results are summarized in Figure 4. The removal efficiency for SCOD was gradually decreased ...

More

Factors Affecting Aerobic Respiration: 8 Factors Plants

2022-1-6  Specific response to higher CO 2 concentration varies with the particular kind of tissue and plant. The effect of CO 2 concentration is more significant when the temperature and oxygen supply are low. At a very high concentration of CO

More

Effect of ethylene on quality of fresh fruits and vegetables

2012-5-29  Postharvest Biology and Technology 15 (1999) 279–292 Effect of ethylene on quality of fresh fruits and vegetables Mikal E. Saltveit * Mann Laboratory, Department of Vegetable Crops, Uni6ersity of California, One Shields A6e., Da6is, CA 95616-8631, USA Received 10 June 1998; received in revised form 28 October 1998; accepted 11 November 1998

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10 Major Factors Affecting Photosynthesis - Biology

2022-1-1  The normal atmospheric concentration of oxygen is high enough to induce a lower rate of photosynthesis than obtains at lower concentration of oxygen. This is demonstrated by the work of McAlister and Myers (1940) showing the effect of high and low concentrations of oxygen on the rate of photosynthesis of wheat plants.

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Biology Unit 4 Chapters 2, 3 and 4 - ATP, Photosynthesis ...

High concentration of carbon dioxide is linked with darkness; ... the information provided and your knowledge of the light-independent reaction to explain why the yield from soya bean plants is decreased at higher concentrations of oxygen. Phosphoglycolate is not used in the light-independent reaction. ... Describe and explain the effect of ...

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