Effect of ultraviolet and visible radiation on the sporulation of species of Helminthosporium
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Effect of ultraviolet and visible radiation on the sporulation of species of Helminthosporium

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Published .
Written in English

Subjects:

  • Helminthosporium.,
  • Plants -- Reproduction.,
  • Fungi -- Physiology.,
  • Plants, Effect of radiation on.

Book details:

Edition Notes

Statementby Babu Singh Yadav.
The Physical Object
Pagination80 leaves, bound :
Number of Pages80
ID Numbers
Open LibraryOL14333202M

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Comparative sporulation studies were carried out on Septoria nodorum Berk, and S. tritici Rob. grown on four different agar media and subjected to treatments with continuous near-ultraviolet (NUV) irradiation and dark incubation. Sporulation of both pathogens was significantly greater under NUV irradiation vising a Czapek Dox V-8 agar by: The sporulation of Helminthosporium oryzae as affected by exposure to near ultraviolet radiation and dark periods Article in Canadian Journal of Botany 39(3) . Growth (dry weight) under continuous exposure to near ultraviolet radiation did not differ from growth in region of mycelium most sensitive to effects of radiation on sporulation at. The effects of ultraviolet radiation, visible light, and infrared radiation on cutaneous erythema, immediate pigment darkening, persistent pigment darkening, and delayed tanning are affected by a variety of factors. Some of these factors include the depth of cutaneous penetration of the specific wavelength, Current topics in photodermatologyCited by:

Abstract. Near-ultraviolet (near-UV) radiation (also called “UV-A”) can be considered to lie in the wavelength range – nm. The long-wavelength limit represents the beginning of the visible spectrum, while the short-wavelength limit corresponds roughly to the point below which proteins and nucleic acids begin to absorb by: the effect of ultraviolet radiation on the ova of the ascarid roundworms toxocara canis & toxascaris leonina [wright, w.h.& mcalister, e.d.] on *free* shipping on qualifying offers. the effect of ultraviolet radiation on the ova of the ascarid roundworms toxocara canis & Author: E.D. Wright,W.H.& McAlister.   Thus, the effect of radiation on spore germination and mycelial growth seems to be affected by temperature. In general, radiation effects increased as the number of exposition periods increased, indicating that both spore germination and mycelial growth were reduced, but not totally stopped by the different by: Species-specific effect of UV-B radiation on the temporal pattern of leaf growth. Recent molecular and physiological studies have demonstrated that ultraviolet-B radiation (UV-B) can affect some of the processes involved in leaf growth, but the phases of leaf growth affected have not been clearly delimited. Cited by:

INTRODUCTION. The inactivation of microorganisms by Ultraviolet (UV) light has been known for a long time and is used in many applications (Qualls and Johnson, ; Zemke et al., ; Rames et al., ; Warriner et al., ; Lin and Blatchley, ; Favier et al., ).It is known that sterilization efficiency of UV systems depends on different parameters like wavelengths . Species-specific effect of UV-B radiation on the temporal pattern of leaf growth Thomas Matthew Robson∗ and Pedro Jose Aphalo´ Department of Biosciences, Plant Biology, University of Helsinki, P.O. Helsinki Finland Correspondence *Corresponding author, e-mail: @helsinki.fi Received 8 April ; revised Cotton (Gossypium hirsutum L.) crop, cultivated between 40°N and 40°S, is currently experiencing 2–11 kJ m –2 d –1 of UV‐B is predicted to increase in the near future. An experiment was conducted to study the effect of enhanced UV‐B radiation on vegetative and reproductive morphology and leaf anatomy of cotton in sunlit, controlled environment by: Figure 1 ahowa graphically the effect of ultraviolet radiation on spore germination. The increase in germination from percent in the controls to percent at one minute exposure to ultraviolet rays was statistically highly significant. This increase showed a stimulation in germination with short exposures to radiation.