Plants and UV-B

Responses to Environmental Change (Society for Experimental Biology Seminar Series) by Peter Lumsden

Publisher: Cambridge University Press

Written in English
Cover of: Plants and UV-B | Peter Lumsden
Published: Pages: 375 Downloads: 693
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Subjects:

  • Plant Physiology,
  • Plant reproduction & propagation,
  • Science,
  • Science/Mathematics,
  • Flowers,
  • Life Sciences - Botany,
  • Life Sciences - Ecology,
  • Plants, Effect of ultraviolet radiation on,
  • Science / Botany,
  • Effect of ultraviolet radiation on,
  • Plants,
  • Plants, Effect of ultraviolet
The Physical Object
FormatHardcover
Number of Pages375
ID Numbers
Open LibraryOL7746847M
ISBN 100521572223
ISBN 109780521572224

  The effects of ultraviolet-B (UV-B) radiation on water relations, leaf development, and gas-exchange characteristics in pea (Pisum sativum L. cv Meteor) plants subjected to drought were investigated. Plants grown throughout their development under a high irradiance of UV-B radiation ( W m−2) were compared with those grown without UV-B radiation, and after 12 d one-half of the plants.   UVR8 (UV RESISTANCE LOCUS 8) orchestrates the expression of over genes in Arabidopsis in response to UV-B wavelengths (– nm) (1–4).The uvr8 mutant exhibits UV-B sensitivity from decreased expression of genes conferring UV-protection (1, 5).UV-B exposure promotes both rapid UVR8 accumulation in the nucleus (), where the protein binds chromatin via histones (1, 7), Cited by: Effects of Radiation on Plants Reed Miller Ma Submitted as coursework for PH, Stanford University, Winter How Radiation Works. Fig. 1: Three irradiated plants (right three). [6] (Source: Wikimedia Commons). Before I explain how radiation can affect plant-life, I must first explain what exactly radiation is, and how it is. Plants tend to be less sensitive to UV‐B radiation under drought or mineral deficiency, while sensitivity increases under low levels of visible light. Further studies are needed to understand the mechanisms of UV‐B effects and the interactions with present stresses and future projected changes in the by:

Detailing interrelated topics, this work addresses issues and concerns related to plant and crop stress. This edition includes information on pH stress, temperature stress, water-deficit conditions, carotenoids and stress, light stress, pollution stress, agrichemical stress, oxidative damage to proteins, UV-B induced stress and abiotic stress tolerance.5/5(1). Cannabis researchers in Maryland exposed pot plants to ultraviolet radiation to see what would happen. They found that increasing doses of UVB radiation, a natural part of sunlight, made the Author: Sirius J. This special issue and book UV-B and Biosphere is an attempt to cover this range and to report the progress made in the research of ecological effects of enhanced solar UV-B radiation. The papers in this book formed the basis of an international workshop entitled' UV-B and Biosphere', December , , in Wageningen, The Netherlands. Elevated solar UV-B radiation associated with stratospheric ozone reduction may exert effects on terrestrial ecosystems through actions on plants, microbes, and perhaps on some animals. At the ecosystem level, the effects are less well understood than at the molecular and organismal by:

Introduction. The ultraviolet-B (UV-B) wavelength (– nm) is an intrinsic component of the sunlight that reaches the earth’s surface. Determined by its wavelength, intensity, and duration, UV-B irradiation results in various biological consequences for plants (Jenkins, ).Non-damaging UV-B light promotes photomorphogenic development and stress acclimation (Frohnmeyer and Staiger Author: Chongzhen Qian, Zhiren Chen, Qing Liu, Weiwei Mao, Yanling Chen, Wei Tian, Yan Liu, Jiupan Han, Xinh.

Plants and UV-B by Peter Lumsden Download PDF EPUB FB2

"Plants and UV-B is a fascinating volume, as much for its ability to highlight the gaps in current knowledge as for its broad and integrative approach.

By raising so many questions, it should serve as a catalyst for much future : Hardcover. Plants and UV-B is a fascinating volume, as much for its ability to highlight the gaps in current knowledge as for its broad and integrative approach.

By raising so many questions, it should serve as a catalyst for future work. Plants and UV-B is a fascinating volume, as much for its ability to highlight the gaps in current knowledge as for its Plants and UV-B book and integrative approach.

By raising so many questions, it should serve as a catalyst for future Range: £ - £ Ultraviolet-B radiation (UV-B) has profound effects on plant growth and development, and exposure varies with ozone depletion across geographic regions with ecosystem and agricultural consequences.

This book deals with large-scale impacts and how UV-B affects plants at the molecular : $ In addition the papers in the book discuss the problem of how responses of plants to UV-B radiation interact with other environmental factors. The book is of great importance for those who are involved in global change topics: biologists, ecologists, earth scientists, agronomists, environmental scientists, and those who develop environmental : Hardcover.

Despite numerous physiological studies of UV-B effects on plants, often grown in climate chambers, knowledge of UV-B effects on organisms and processes in natural aquatic or terrestrial ecosystems is poor. Currently it appears that UV-B radiation is not just an environmental stress' factor to : Hardcover.

This book deals with large-scale impacts but also how UV-B affects plants at the molecular level is also fascinating, and the UV-B photoreceptor has only recently been characterised.

While UV-B radiation can be damaging, it also has a more positive role in plant photomorphogenesis. The responses of plants and ecosystems from the Antarctic and Arctic to enhanced solar UV-B radiation as a consequence of the hole in the ozone layer are considered in some detail.

In addition the papers in the book discuss the problem of how responses of plants to UV-B radiation interact with other environmental factors.

In addition Plants and UV-B book papers in the book discuss the problem of how responses of plants to UV-B radiation interact with other environmental factors.

The book is of great importance for those who are involved in global change topics: biologists, ecologists, earth scientists, agronomists, environmental scientists, and those who develop environmental policy. Recent genetic studies have revealed the existence of UV-B specific signalling pathways in plants, and have identified several components including a photoreceptor.

The discovery of these UV-B specific signalling pathways has confirmed the contention that UV-B irradiance is a specific regulatory factor in plant-environment relationships. In addition the papers in the book discuss the problem of how responses of plants to UV-B radiation interact with other environmental factors.

The book is of great importance for those who are involved in global change topics: biologists, ecologists, earth scientists, agronomists, environmental scientists, and those who develop environmental cturer: Springer.

The publisher’s blurb: Ultraviolet-B radiation (UV-B) has profound effects on plant growth and development, and exposure varies with ozone depletion and across geographic regions, with ecosystem and agricultural consequences. plants have learned how to perceive (see) UVR and to use that information to control their own growth.

Plants have evolved to sense the quality, intensity, duration and direction of light. Besides sensing visible. light such as blue and red light, plants also use “sensors” for UV-B radiation. Perception of UVR enables plants, not only to. Reduction in plant height from exposure to UV-B is due in part to decreased levels of a growth hormone (indole acetic acid) in plants.

The smaller and more compact canopy reduces the amount of UV-B intercepted by the plant, but also reduces the potential or total photosynthetic area essential for growth. Plants are able to sense UV-B through the UV-B photoreceptor UVR8. UV-B photon absorption by a UVR8 homodimer leads to UVR8 monomerization and interaction with the downstream signaling factor COP1.

This then initiates changes in gene expression, which lead to several metabolic and morphological by:   Under natural conditions, the genotoxic potential of UV-B radiation is primarily determined by the genetic ability of the plant to adapt to the UV-B exposure, the acclimation status of the plant to UV-B radiation, and the time of the day at which the plant is exposed to UV-B radiation (Takeuchi et al., ; Jenkins, ).

UVR8 plays a crucial Cited by: 8. An enormous number of physiological studies published in the last century describe the properties of phytochrome and its function and also the physiology of blue and UV-B photoreceptors, unidentified at the time.

This knowledge was summarized in the advanced textbook “Photomorphogenesis in Plants” (Kendrick and Kronenberg, eds.,). This book contains 11 chapters focusing on the UV-B radiation effects on plants from the UV-B environment and ecosystem impact, UV-B changes in plant physiology and secondary metabolism, the biochemistry and molecular biology of UV-B responses and isolation and characterization of the UV-B photoreceptor and signal transduction.

Plants are able to perceive UV-B using the UV-B photoreceptor UVR8 which is linked to a specific molecular signaling pathway and leads to UV-B acclimation. Herein we review the biological process in plants from initial UV-B perception and signal transduction through to the known UV-B responses that promote survival in by: In plants, both enzymatic and non‐enzymatic antioxidant defence systems operate in response to UV‐B‐induced oxidative stress, due to excessive generation of reactive oxygen species (ROS).

Some flavonoids and phenolic compounds help in protecting the plants and their photosynthetic tissues from UV‐B‐induced by: 8. where plants do not receive any UV‐B before the actual UV‐B treatment.

These irradia - tion conditions are very different from those present in the natural environment, where. UV-B stimulates plants to accumulate specific flavonol glycosides which are produced in the vacuoles of epidermal and subepidermal cells protecting plants from UV-B irradiation (Emiliani et al., ; Cited by: UV-B Radiation: From Environmental Stressor to Regulator of Plant Growth presents a comprehensive overview of the origins, current state, and future horizons of scientific research on ultraviolet-B radiation and its perception in plants.

Chapters explore all facets of UV-B research, including the basics of how UV-B's shorter wavelength. UV-B Radiation: From Environmental Stressor to Regulator of Plant Growth presents a comprehensive overview of the origins, current state, and future horizons of scientific research on ultraviolet-B radiation and its perception in plants.

Chapters explore all facets of UV-B research, including the basics of how UV-B's shorter wavelength Author: Vijay Pratap Singh. Many different plant responses to supplemental UV-B radia- tion have been observed (Tevini and Teramura, ). The best studies have increased UV-B levels to simulate conditions that would exist with a defined reduction in the ozone layer (typi- cally 10 to 20%).

As a control, the same lamps are shielded with a plastic film that absorbs all UV Cited by: ISBN: OCLC Number: Description: xx, pages: illustrations, map ; 24 cm.

Contents: Global ozone depletion: observations and theory / J.A. Pyle --Monitoring changes in UV-B radiation / A.R. Webb --Action spectra for UV-B effects on plants: monochromatic and polychromatic approaches for analysing plant responses / M.G.

Holmes --DNA damage and repair in. Plants and UV-B is a fascinating volume, as much for its ability to highlight the gaps in current knowledge as for its broad and integrative approach.

By raising so. Ultraviolet B (UV-B) light is a portion of solar radiation that has significant effects on the development and metabolism of plants. Effects of UV-B on plants can be classified into photomorphogenic effects and stress effects.

These effects largely rely on the control of, and interactions with, hormonal by:   When given UVB throughout the entire growth cycle, sensitive plants such as leafy greens often display reduced growth (plant height, dry weight, leaf area, etc.) and photosynthetic activity.

Generally, the effectiveness of UVB also varies both among species and among individual strains or genetics of a given species. A common plant acclimation response to a variety of environmental stressors is the accumulation of antioxidants and secondary metabolites.

For example, ultraviolet-B (UV-B) radiation impacts on the levels of a broad range of metabolites, including phenolic, terpenoid and alkaloid compounds.

plants and eliminating the need for border plants. 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. Plants grown in UV-exposed locations, i.e. at higher altitudes or geographical latitudes, are commonly more UV-B tolerant than plants grown at places with low UV-B exposure (Jordan, ).

Such a variety of UV-B tolerance has been even shown between different Arabidopsis ecotypes (Torabinejad and Caldwell, ). Posted on August 3, UV light for plants are split into 3 categories based on wavelength: Ultraviolet A (UVA) is from nm and comprises about 3% of the photons in natural sunlight that make it through Earth's atmosphere.

UVA lights for plants do not damage DNA.