Ultraviolet Photoreceptors and Their Interaction in Broom Sorghum — Analysis of Action Spectra and Fluence-Response Curves

Hashimoto, Tohru; Yatsuhashi, Hiroko

doi:10.1007/978-3-642-69767-8_15

Cited by 10 publications

(11 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3. The peak wavelength was 10 nm lower than that of the so-called lo-]} UV-B photoreceptor, PZq, (Hashimoto and Yatsuhashi, 1984) found in the synthesis of anthocyanin in the first internode of sorghum. As they used an intact plant, the difference may be due to surface materials such as cuticle which absorb the light of UV region.…”

Section: Action Spectrummentioning

confidence: 64%

Light‐induced Synthesis of Anthocyanin in Carrot Cells in Suspension—iv. The Action Spectrum

Takeda

Abe

1992

Photochem & Photobiology

View full text Add to dashboard Cite

Abstract— Using carrot cell suspension in 2,4‐dichlorophenoxyacetic acid (2,4‐D)‐depleted culture medium, fluence‐response curves for the formation of anthocyanin were determined at various wavelengths from 250 to 800 nm. In the fluence‐response curves at wavelengths between 260 and 330 nm, the response showed a sharp fluence‐dependent increase after the fluence exceeded threshold level at the respective wavelength. Such a sharp increase in response was not observed by light at 450 nm or longer wavelengths, although the response obtained by higher fluence of such light was always higher than that in the dark control. Action spectra determined at the sharp increasing phase of the response showed the single peak at 280 nm which equals the absorption maximum of UV‐B photoreceptor. Although red (R)‐light alone had a minor effect on anthocyanin accumulation, it modulated the action of UV‐B light. That is, when carrot cells were irradiated with R‐light either before or after UV‐B irradiation, anthocyanin formation was greatly enhanced above the level enhanced by UV‐B light alone. The most effective wavelength for this enhancement was 660 nm. The effect of R‐light on the anthocyanin formation of the UV‐B irradiated cells was reversed by immediately following it with far‐red light, suggesting the involvement of phytochrome in the R‐effect.

show abstract

Section: Action Spectrummentioning

confidence: 64%

Light‐induced Synthesis of Anthocyanin in Carrot Cells in Suspension—iv. The Action Spectrum

Takeda

Abe

1992

Photochem & Photobiology

View full text Add to dashboard Cite

show abstract

“…Maximum sensitivity to UVB radiation appears to be associated with the reducing, oxidizing, and donor sites of PSII (Bornman 1991;Middleton and Teramura 1994). While evidence does exist for a separate and distinct UVB photoreceptor (P-290; Hashimoto and Yatsuhashi 1984), an analysis of many studies indicates that the UVB photoreceptor may be phytochrome (Middleton and Teramura 1994). Phytochrome, generally associated with R:FR absorption, also absorbs in the UVB (Middleton and Teramera 1994).…”

Section: Uvb Wavebandmentioning

confidence: 99%

Partitioning of biologically active radiation in plant canopies

Grant

1997

Int J Biometeorol

110

View full text Add to dashboard Cite

Plant germination, growth, maturation, and productivity are heavily influenced by the quality and quantity of the light in its environment. The light environment has traditionally been quantified in terms of radiant heat energy and available photosynthetic radiation (PAR), but detailed spectral irradiance or photon flux distributions have rarely been studied. This information is needed to translate the research that plant photobiologists and photochemists have been conducting with regard to understanding the light controls on plant physiology in the field environment of plant canopies. More interest has recently been generated as the potential impacts of global climate changes on intensively managed and natural terrestrial ecosystems are identified and evaluated. Linkages between the identified impacts of various wavelengths of light on plant physiology and the light environment of the plant canopy are identified, with detailed discussion concerning the impacts of plant canopy structure on the plant light response.

show abstract

“…In recent years, stimulation of anthocyanin synthesis with blue/UV light has been reported in several plant seedlings whose responsiveness to red light alone was very weak (Mohr and Drumtn-Herrel 1983). Further, a synergistic effect of blue/UV-A and UV-B in tnilo sorghum (Mohr and Drumm-Herrel 1981) and red and UV-B in broom sorghum (Hashimoto and Yatsuhashi 1984) in anthocyanin synthesis has been found.…”

Section: Introductionmentioning

confidence: 97%

Relative effectiveness and interaction of ultraviolet‐B, red and blue light in anthocyanin synthesis of apple fruit

Arakawa

Hori

Ogata

1985

Physiologia Plantarum

119

View full text Add to dashboard Cite

The effect of light on anthocyanin production in apple (Malus pumila Mill. cv. Jonathan) skin disks was investigated, with prolonged irradiation from different light sources. High fluence rates of white light provided from a xenon lamp were unable to produce large amounts of anthocyanin, and anthocyanin production became saturated at about 30 W m−2. When UV‐B light, provided by a fluorescent lamp which had an emission peak at 312 nm, was combined with the white light, anthocyanin production was synergistically stimulated and increased up to the highest fluence rates of white light tested (44 W m−2). This UV‐B light was more effective than red and blue light provided from fluorescent lamps, but anthocyanin production became saturated at about 1.7 W m−2. However, simultaneous irradiation with red and UV‐B light had a synergistic effect. UV‐B light was also effective in increasing anthocyanin production in whole fruit. Therefore this synergism seemed to have an important role in the development of the desirable red skin color under field light conditions. The results of aminoethoxyvinylglycine treatment suggested that ethylene was not involved in the stimulative effect of UV‐B light.

show abstract

Ultraviolet Photoreceptors and Their Interaction in Broom Sorghum — Analysis of Action Spectra and Fluence-Response Curves

Cited by 10 publications

References 18 publications

Light‐induced Synthesis of Anthocyanin in Carrot Cells in Suspension—iv. The Action Spectrum

Light‐induced Synthesis of Anthocyanin in Carrot Cells in Suspension—iv. The Action Spectrum

Partitioning of biologically active radiation in plant canopies

Relative effectiveness and interaction of ultraviolet‐B, red and blue light in anthocyanin synthesis of apple fruit

Contact Info

Product

Resources

About