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2 edition of Effect of carbon-14 radiation on photosynthesis and related processes in barley seedlings. found in the catalog.

Effect of carbon-14 radiation on photosynthesis and related processes in barley seedlings.

Geoffrey Myers

Effect of carbon-14 radiation on photosynthesis and related processes in barley seedlings.

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Published .
Written in English


The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL21614791M

An increased level of atmospheric carbon can have a massive impact on photosynthesis. It can boost photosynthesis in plants for example. Photosynthesis K. Hikosaka, K. Okada, I. Terashima, S. Katoh * Dynamics of Photosystem II: Photoinhibition as a Protective Acclimation Strategy J. M. Anderson, W. S. Chow, G. Oquist * Energy Dissipation and Photoprotection in Leaves of Higher Plants W. W. Adams III, B. Demmig-Adams * Effects of UV-B Radiation on Plant Productivity. Kalaji HM, Łoboda T () Photosystem II of barley seedlings under cadmium and lead stress. Plant Soil and Environment – IF5 lat = 1,; 25 pkt; 15 cyt. Chołuj D, Kalaji MH, Niemyska B () Analysis of the gas exchange components in chilled tomato plants. Photosynthet – IF5 lat = 1,22; 25 pkt; 6 cyt. Acclimation to Canopy Depth. New plant type (NPT) rice plants possess fewer, larger, upright leaves (per plant) which permit a high degree of penetration of irradiance to lower leaves in the canopy (Peng et al., ).Although this results in a lower leaf area index, grain yields are equivalent or higher than traditional cultivars (International Rice Research Institute [IRRI], ).Cited by:


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Effect of carbon-14 radiation on photosynthesis and related processes in barley seedlings. by Geoffrey Myers Download PDF EPUB FB2

Up to now, there has been a lack of studies combining the two ChlF techniques (PAM and directly measured fluorescence transient) in light acclimation studies; our current studies, using both methods, contribute to a better understanding of light acclimation process of barley plants grown under sun and shade by: ABSTRACT.

The effect of artificial ultraviolet (UV) and natural solar radiation on photosynthesis, res- piration and growth was investigated in 14 red, green and brown macroalgal species on Spitsbergen (Norway) during summer In June, maximum mean solar radiation at sea level was W m-2 of.

The effects of photosynthetically active radiation (PAR) and temperature on the photosynthesis of two Vietnamese brown algae, Sargassum mcclureiand S.

oligocystum(Fucales), were determined by field and laboratory measurements. Dissolved oxygen sensors and pulse‐amplitude modulated (PAM) fluorometry were used for the measurements of photosynthetic by: 8.

The effect of artificial ultraviolet (UV) and natural solar radiation on photosynthesis, respiration and growth was investigated in 14 red, green and brown macroalgal species on Spitsbergen. Effect of Light on Reversal of Inhibition Produced by Gamma Radiation After large doses of radiation, etiolated leaves can recover their ca- pacity to turn green and to develop normal photosynthesis.

To determine whether light was needed for this recovery, experiments were performed in which gamma radiation of kr.

was followed by a dark period of by: 4. Influence of ionizing radiation on the processes of biosynthesis. One of the essential aspects of the effect of IR on the vital activity of plants is the IR-induced changes in the processes of by:   Assays of photosynthesis were conducted with a biofilm population of a cyanobacterium, a Synechococcus sp., growing at ∼70°C in a Yellowstone National Park hot spring to test whether cells growing near the upper temperature limit of photosynthetic life are optimally adapted to their mean environmental temperature.

Cell suspensions were assayed at 70, 65, and 55°C while Cited by: Semeniuk, P.,Biological effects of ultraviolet radiation on plant growth and development in florist and nursery crops, in: UV-B Biological and Climatic Effects Research (BACER), FY Research Report on the Impacts of Ultraviolet-B Radiation on Biological Systems: A Study Related to Stratospheric Ozone Report, Vol.

III, SIRA File No. Cited by: Photosynthetically active radiation (PAR) is light of wavelengths nm and is the portion of the light spectrum utilised by plants for photosynthesis. Photosynthetic photon flux density (PPFD) is defined as the photon flux density of PAR.

Modern instruments measure light as the rate at which moles ( × 10 23 quanta) of PAR land on a unit area (μmol quanta m −2 s −1); however, it. Seasonal patterns of photosynthesis and light-independent carbon fixation in marine macrophytes Article in Journal of Phycology 33(3) - June with 15 Reads How we measure 'reads'.

In addition, photosynthetic carbon reduction may also be sensitive, with UV-B radiation having a direct effect on ribulose 1,5-bisphosphate carboxylase/oxygenase activity and content. There are also a number of indirect effects of UV-B radiation on leaf and whole plant development which may indirectly influence by: An essay on the food of plants and the renovation of soils.

(Appendix to 15th chapter of the General Report from the Board of Agriculture.) London Book in German: Ernährung der Pflanzen und Fruchtbarkeit des Bodens. Leipzig Reviewed in: Photosynthesis and related processes, I (E.

L Rabinowitch), p. Cited by: Start studying Carbon Reactions of Photosynthesis. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Tsormpatsidis E, Henbest RGC, Battey NH, Hadley P () The influence of ultraviolet radiation on growth, photosynthesis and phenolic levels of green and red lettuce: potential for exploiting effects of ultraviolet radiation in a production system.

Ann Appl Biol (3)– doi: /jx CrossRef Google ScholarCited by: To support, it was reported that, pre-treatment of barley seedlings with SA prior to paraquat improved the rate of photosynthesis due to decreased production of H 2 O 2 by SA, or herbicide may.

The wide range of beneficial effects of Se on plants has been established. Low concentrations of Se have been proven to enhance seed germination, growth, photosynthesis, respiratory potential, yield, etc. Its role in protecting the plants against various types of biotic and abiotic stresses has become an area of active by: 3.

Abstract. The effects of UV-B radiation on photosynthesis and photosynthetic productivity of higher plants are reviewed. When plants were exposed to large UV-B doses in a glasshouse in order to study the mechanistic basis of UV-B-induced inhibition of photosynthesis, direct effects on stomata and on Calvin cycle enzymes (i.e.

large decreases in ribulose-1,5-bisphosphate carboxylase Cited by: 1. 14 Nitric Oxide Mediated Effects on Chloroplasts Kopyra M, Gwozdz EA () The role of nitric oxide in plant growth regulation and responses to abiotic stress.

Additionally, Mn is a component of enzymes involved in essential processes in plant metabolism, such as respiration and photosynthesis, and is required during water molecule breakdown in PSII.

Most weight in the book is given to light reactions and energy conversion processes, with about a fifth of the content covering carbon metabolism and leaf level processes.

This balance reflects the career of Govindjee, whose research focused on light reactions of photosynthesis and discoveries in photosystem II Cited by: 2. Photosynthetic responses to temperature and photosynthetically active radiation (PAR) were investigated on the heteromorphic life history stages (macroscopic and microscopic stages) of an edible Japanese brown alga, Cladosiphon okamuranus from the Ryukyu Islands.

Measurements were carried out by using optical dissolved oxygen sensors and a pulse‐amplitude modulated by: 7. The direct effects of increased carbon dioxide (CO 2) on plant growth refers to the change in plant grow with the levels of temperature, precipitation, evaporation and growing season at their present indirect effects include the results of any changes in the other variables which affect plant growth that come as a result of the effect of increased CO 2 on global climate.

Photosynthesis is the most fundamental process in plants because it provides raw material for growth and stores energy for later use in vital functions.

In photosynthesis, the energy of solar radiation is converted into chemical form using atmospheric carbon dioxide and soil water. Meanwhile, oxygen is released into the air.

Displacement damage in graphite and carbon-based materials can occur when energetic particles, such as neutrons, ions, or electrons impinge on the crystal lattice. The displacement of carbon atoms from their equilibrium positions results in lattice strain, bulk dimensional change, and profound changes in physical by: Broad‐band UV‐B radiation inhibited hypocotyl elongation in etiolated tomato (Lycopersicon esculentum Mill.

Alisa Craig) inhibition could be elicited by radiation provided against a background of white light (> μmol m −2 s −1 between and nm), and was similar in wild‐type and phytochrome‐1‐deficient aurea mutant Cited by:   where AbsAbs and Abs is the absorbance atand nm, respectively.

Effect of temperature on the oxygenic photosynthesis and dark respiration. Measurements were conducted at nine temperature treatments (8, 12, 16, 20, 24, 28, 32, 36 and 40°C, n = 5 replicates / treatment), under a saturating PAR of μmol photons m −2 s −1 (derived from P–E Cited by: 7. Genotype effects were analyzed by ANOVA as three factors, QTL, genetic-background and treatment (Table Table3 3) on GH-CNRS and Field-IRRI The effects of qTSN4 on FLA, FLW, SPN, and PGDW were highly significant (P Cited by: 6.

Carbon Isotopes in Photosynthesis Fractionation techniques may reveal new aspects of carbon dynamics in plants Marion H. O'Leary he efficiency of photosynthesis continues to interest biochem- ists, biologists, and plant physiologists. Scientists interested in CO2 uptake are concerned about the extent to which the uptake rate is.

The Effect of Environmental Conditions on the Rate of Photosynthesis 2. Introduction Background Photosynthesis is the conversion of light energy to chemical energy into sugars. It is the process in plants that uses carbon dioxide, water, and sunlight from its surroundings and releases oxygen as a byproduct (6H2O+6CO2+light energy -> C6H12O6+6O2).

Causes of decreased photosynthesis rate and metabolic capacity in water-deficient leaf cells: a critical evaluation of mechanisms and integration of processes. Annals of Botany. pp. Effects of climate change on plants: implications for by: FBPase is a key regulated enzyme and some studies have been done to see if it has any effect on photosynthesis (Raines, ).

As for GAPDH, it was observed that FBPase does not have a significant effect on photosynthesis in antisense potato plants but some effect was only observed when FBPase activity was reduced to less than 34% of the wild-type.

Artificially varying the radiation environment above the canopy is rather impractical, but the irradiance normal to the leaf surface can be manipulated through variations in the leaf angle distribution. Less explored is the light scattering produced by the long awns of some cereals such as two-row barley, which can intercept and scatter a large fraction of the incoming radiation, potentially increasing the RUE of.

We assessed the influence of springtime solar UV-B radiation that was naturally enhanced during several days due to ozone depletion on biomass production and photosynthesis of vascular plants along the Antarctic Peninsula. Naturally growing plants of Colobanthus quitensis (Kunth) Bartl. and Deschampsia antarctica Desv.

were potted and grown under filters that absorbed or Cited by: The greenhouse effect occurs naturally. However, human activity intensifies the process, in which Earth absorbs some energy from the sun in its atmosphere and reflects the rest back toward space.

This trapped energy warms Earth’s surface. The production and consumption of fossil fuels have increased greenhouse gases. Photosynthetically active radiation, often abbreviated PAR, designates the spectral range (wave band) of solar radiation from to nanometers that photosynthetic organisms are able to use in the process of spectral region corresponds more or less with the range of light visible to the human eye.

Photons at shorter wavelengths tend to be so energetic that they can be. The effects of solar UV radiation ( nm) on growth, photosynthesis and pigments of red alga Pyropia yezoensis were investigated when the thalli were cultured under solar radiation with or without UV.

Most of inhibition and lowest recovery about photosynthetic performance were found in the thalli exposed to full solar spectrum. UV-B ( Cited by: 1. Ultraviolet-B (UV-B) radiation can have a negative impact on the growth and development of plants.

Plants tolerant to UV-B alleviate these effects using UV-screening pigments that reduce the penetration of UV-B into mesophyll tissue. Little is known about the relative contribution of specific phenolic compounds to the screening capacity of leaves.

The D1 and D2 proteins constituting. Effects of Light wavelength on Germination of Delphinium Seed Background informationLight is one of the most important factors in seed germination. Apart from humidity and oxygen, light is known to ease seed dormancy and consequently facilitates the process of seed germination.

Through this experiment, you will learn about the Effect of bases on litmus paper. To watch all subjects full videos click here: Climate change is a major environmental concern and is directly related to the increasing concentrations of greenhouse gases. The increase in concentrations of atmospheric carbon dioxide (CO2), not only affects plant growth and development, but also affects the emission of plant organic volatile compounds (VOCs).

Changes in the plant odor profile may affect the plant-insect interactions Cited by: 1. The Net Effect. The research did not identify the cause of the increased photosynthesis, but computer models have shown several processes that could, together, create such a .In developmental biology, photomorphogenesis is light-mediated development, where plant growth patterns respond to the light is a completely separate process from photosynthesis where light is used as a source of energy.

Phytochromes, cryptochromes, and phototropins are photochromic sensory receptors that restrict the photomorphogenic effect of light to the UV-A, UV-B. Response of single leaf photosynthesis and transpiration to red light and UV-A radiation in two different plant-type rice cultivars (Oryza sativa L.) Aung Kyaw Phyo1 and Nam-Jin Chung1* 1Department of Crop Science and Biotechnology, Chonbuk National University, JeonjuRepublic of Korea *Corresponding author: [email protected] Abstract.