3 edition of Response of two legumes to two ultraviolet-B radiation regimes found in the catalog.
Response of two legumes to two ultraviolet-B radiation regimes
by National Aeronautics and Space Administration, Ames Research Center, Available from NASA Center for Aerospace Information in Moffett, Field, Calif, Hanover, MD
Written in English
|Statement||Daniel L. Levy, J.W. Skiles.|
|Series||[NASA contractor report] -- NASA/CR-2000-209604., NASA contractor report -- NASA CR-209604.|
|Contributions||Skiles, J. W., Ames Research Center.|
|The Physical Object|
We examined the effects of temperature, ultraviolet-B (UVB) radiation and watering regime on aerobic methane (CH4) emission from six crops-faba bean, sunflower, pea, canola, barley and wheat. Plants were grown in controlled-environment growth chambers under two temperature regimes (24/20 and 30/26°C), three levels of UVB radiation [0 (zero), 5 (ambient) and 10 (enhanced) kJ m-2 d-1] and two. Chimphango SBM, Musil CF and Dakora FD () Response to ultraviolet-B radiation by purely symbiotic and NO 3-fed nodulated tree and shrub legumes indigenous to Southern Africa. Tree Physiol
A modeling research approach, which integrates and scales the effects of enhanced UV-B radiation on terrestrial plant communities, was therefore used to understand plant response mechanisms to UV-B radiation and their broader consequences, identify the processes insufficiently addressed by past research, as well as to investigate hypotheses. There is concern that decreases in stratospheric ozone will lead to hazardous levels of ultraviolet‐B (UV‐B) radiation at the Earth's surface. In clear water, UV‐B may penetrate to significant depths. The purpose of the current study was to compare .
UV-B radiation treatments In Experiment I, ﬁve UV-B radiation treatments, zero (control, no UV-B), and a total daily dose of biologically effective UV-B radiation of 4, 8, 12 and 16kJm−2 were imposed soon after emer-gence. In Experiment II, three UV-B treatments of zero (control, no UV-B), and two . The U.S. Department of Energy's Office of Scientific and Technical Information.
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RESPONSE OF TWO LEGUMES TO TWO ULTRAVIOLET-B RADIATION REGIMES Daniel L. Levy and J. Skiles Ames Research Center ABSTRACT Depletion of the stratospheric ozone layer has been directly linked to increased levels of UV radiation at the earth' s surface.
The purpose of this study was to evaluate the responses of soybeanCited by: 3. Response of Two Legumes to Two Ultraviolet-B Radiation Regimes. Article (PDF Available) October Response of Two Legumes to Two Ultraviolet-B.
Radiation Regimes. Daniel L. Get this from a library. Response of two legumes to two ultraviolet-B radiation regimes. [Daniel L Levy; J W Skiles; Ames Research Center.]. Response of Two Legumes to Two Ultraviolet-B Radiation Regimes Depletion of the stratospheric ozone layer has been directly linked to increased levels of UV radiation at the earth's surface.
The purpose of this study was to evaluate the responses of soybean (Glycine max) and alfalfa (Medicago sativa) to increased UV-B radiation ( nm Author: Daniel L.
Levy and J. Skiles. Two tropical legumes viz., cluster bean (Cyamopsis tetragonoloba L.) and black gram (Phaseolus mungo L.) were grown under enhanced UV-B radiation at two different climatic seasons behaved differently. Abstract. Sun is the primary source of energy for photosynthetic life on Earth.
Ultraviolet-B (UV-B, – nm) radiation is a natural constituent of solar light reaching Earth’s surface due to the thinning of stratospheric ozone (O 3) studies have shown Response of two legumes to two ultraviolet-B radiation regimes book harmful effects of UV-B on morphological, biochemical and physiological responses of plants.
This paper provides an overview of existing literature on the ultraviolet-B (UV-B) radiation effects on field crops. Earlier reviews on field crop responses to UV-B considered few physiological processes or crops.
For this review, we easily located about studies on 35 crop species published since Seven percent of the electromagnetic radiation emitted from the sun is in the UV range (– nm).
As it passes through the atmosphere, the total flux transmitted is greatly reduced, and the composition of the UV radiation is modified.
Shortwave UV-C radiation (– nm) is completely. Seedlings of two Southern Hemisphere temperate trees species (mountain beech: Nothofagus solandri var. cliffortioides (Hook. f.) Poole and broadleaf: Griselinia littoralis Raoul). The in situ radiation dose on the afternoon prior to sampling varied markedly among lakes-strata, with H nm and H PAR ranging from.
Abstract. Seedlings of two Southern Hemisphere temperate trees species (mountain beech: Nothofagus solandri var. cliffortioides (Hook. f.) Poole and broadleaf: Griselinia littoralis Raoul) were grown in the field to determine the effects of present-day levels of ultraviolet-B radiation (UV-B) on growth, biomass, UV-B absorbing compounds, leaf optical properties and photoinhibition.
Ultraviolet B radiation therapy for psoriasis: twice weekly treatments can be performed if patients understand that optimal response may require more time. longer periods of remission compared with NBUVB alone with fewer treatments.
39 The frequency of treatments should be two to three times per week with a minimum period of 48 hours in. Ultraviolet-B (UV-B) radiation present in sunlight is an important trigger of photomorphogenic acclimation and stress responses in sessile land plants.
Although numerous moss species grow in unshaded habitats, our understanding of their UV-B responses is very limited. The genome of the model moss Physcomitrella patens, which grows in sun-exposed open areas, encodes signaling and.
Full Text; PDF ( K) PDF-Plus ( K) Citing articles; Physiological responses to drought and enhanced UV-B radiation in two contrasting Picea asperata populations.
Yanwei Lu, a b Baoli Duan, a Chunyang Li a a Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. BoxChengduChina. b Graduate School of the Chinese Academy of Sciences, BeijingChina. When exposed to elevated ultraviolet-B radiation (UV-B; – nm), plants display a wide variety of physiological and morphological responses characterized as acclimation and adaptation 6.
A number of environmental stressors have been hypothesized as responsible for recent increases in limb malformations in several species of North American amphibians. The purpose of this study was to generate dose−response data suitable for assessing the potential role of solar ultraviolet (UV) radiation in causing limb malformations in a species in which this phenomenon seemingly is.
When legumes and cereals are eaten together, they provide complete protein nutrition. Nutritionally, legume seeds are two to three times richer in protein than cereal grains.
Some legumes, such as soybeans and peanuts, are also rich in oil. Kidney beans and other legumes are a major source of food in Latin America, while. We describe here the effect of UV−B irradiation on the proteome and flavonoid content of the barley seedling leaf epidermis and mesophyll.
Flavonoid analysis was performed using UPLC-PDA/-MS. The major flavonoid molecule responding to UV−B radiation was saponarin, and this accumulated in the epidermis, but not in the mesophyll. Changes in protein expression were determined using two.
Climate change is directly linked to the human activities, according to the Fourth Assessment Report of IPCC (). In last two decades of 20th Century, accelerated anthropogenic activities pushed up the atmospheric abundance of greenhouse gases, mainly CO2, CH4, and N2O, alarmingly which enhanced the radiative forcing of the Earth’s surface and thus perturbed its heat radiation.
Plant responses to ultraviolet (UV) radiation are numerous, resulting in rapid and permanent alteration to numerous aspects of plant form, physiology and biochemistry. Such responses to UV and UV-B (– nm) radiation in particular have been previously studied largely due to concerns over ozone depletion, but a recent refocus towards the effects of environmentally relevant UV-B doses has.
ABSTRACT- Global increases in ultraviolet-B radiation (UVBR) have the potential to alter marine pri- mary production and to affect carbon cycles and marine trophic dynamics. Estimates of UVBR induced photoinhibition have varied greatly, indicating that a common dose-response by marine phytoplankton may not occur from place to place.Ultraviolet-B (UV-B) radiation (– nm) is intrinsic to sunlight reaching the surface of the earth.
During the Phanerozoic period (within the last million years), the levels of UV-B reaching the biosphere generally decreased (Rozema et al., ).In particular, the development of a stratospheric ozone layer filtering out all UV-C (less than nm) and part of the UV-B radiation was.• NASA SpotLight Award for Innovative Research into the Effects of Microwave Radiation on Plants, August Skiles, J.
W. Plant response to microwaves at GHz. Acta Astonautica, 58 Levy, D. L. and J. W. Skiles. Response of Two Legumes to Two Ultraviolet-B Radiation Regimes. NASA Contractors Report CR