Effects of Light Quality Under Red and Blue Light Emitting Diodes on Growth and Expression of Fbp28 in Petunia

Fukuda, Naoya; Ishii, Yukitsugu; Ezura, Hiroshi; Olsen, Jorunn E.

doi:10.17660/actahortic.2011.907.59

Cited by 37 publications

(16 citation statements)

References 11 publications

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“…SOC1 gene expression is also affected by CONSTANS (CO), which is induced by light quality (Bernie and Perilleux, 2005). In accordance with this, a SOC1 like gene in petunia, FBP28, was previously shown to be highly expressed under B light (Fukuda et al, 2011). Thus, like in A. thaliana, B light is an important signal in floral bud initiation in petunia, and apparently acts by stimulating floral induction genes.…”

Section: Discussionmentioning

confidence: 59%

Antagonistic action of blue and red light on shoot elongation in petunia depends on gibberellin, but the effects on flowering are not generally linked to gibberellin

Fukuda

Ajima

Yukawa

et al. 2016

Environmental and Experimental Botany

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Section: Discussionmentioning

confidence: 59%

Antagonistic action of blue and red light on shoot elongation in petunia depends on gibberellin, but the effects on flowering are not generally linked to gibberellin

Fukuda

Ajima

Yukawa

et al. 2016

Environmental and Experimental Botany

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“…Red light affects leaf formation, stem elongation, germination and photomorphogenic responses via the effect of red:far red ratio of phytochrome (Sager and McFarlane ). Blue light also affects the photomorphogenetic responses through cryptochromes and phototropins; however, the effects vary among species (Imaizumi et al , Fukuda et al ). Indeed, in our study the results in FW and LA were not the same for ‘Vivien’ and ‘Purple Star’, highlighting that the effects of blue light on plant biomass and morphogenesis are species and/or cultivar dependent.…”

Section: Discussionmentioning

confidence: 99%

Spectral effects of LEDs on chlorophyll fluorescence and pigmentation in Phalaenopsis ‘Vivien’ and ‘Purple Star’

Ouzounis

Fretté

Ottosen

et al. 2014

Physiologia Plantarum

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We examined the effect of light emitting diode (LED) lighting in greenhouse facilities on growth, chlorophyll fluorescence and pigmentation in Phalaenopsis 'Vivien' and 'Purple Star' under purpose-built LED arrays yielding c. 200 µmol m(-2) s(-1) at plant height for 14 h per day and 24/18°C day/night temperature, respectively, from January to April 2013. The light treatments were (1) 40% blue in 60% red (40% B/R), (2) 0% blue in 100% red (0% B/R) and (3) white LEDs with 32% blue in white (32% B/W, control), with background daylight under shade screens. The plants were harvested twice for leaf growth and pigmentation. There was no clear pattern in the spectral effect on growth since the order of leaf size differed between harvests in March and April. Fv /Fm was in the range of 0.52-0.72, but overall slightly higher in the control, which indicated a permanent downregulation of PSII in the colored treatments. The fluorescence quenching showed no acclimation to color in 'Purple Star', while 'Vivien' had lower ETR and higher NPQ in the 40% B/R, resembling low light acclimation. The pigmentation showed corresponding spectral response with increasing concentration of lutein while increasing the fraction of blue light, which increased the light absorption in the green/yellow part of the spectrum. The permanent downregulation of PSII moved a substantial part of the thermal dissipation from the light regulated NPQ to non-regulated energy losses estimated by ΦNPQ and ΦNO and the difference found in the balance between ΦPSII and ΦNPQ in 'Vivien' disappeared when ΦNO was included in the thermal dissipation.

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“…B light-enhanced elongation growth was demonstrated in species like Salvia L., Tagetes L. and Petunia Juss. [17][18][19][20][21]. Also, enhanced elongation in response to FR light or low R:FR ratios is exhibited in plants classified as sun plants but not in shade plants [22].…”

Section: Introductionmentioning

confidence: 97%

Day Extension with Far-Red Light Enhances Growth of Subalpine Fir (Abies lasiocarpa (Hooker) Nuttall) Seedlings

Chiang

Toresdatter

Jetmundsen

et al. 2018

Forests

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Subalpine fir (Abies lasiocarpa (Hooker) Nuttall), which is native to western North America, is of considerable interest for Christmas tree production in northern Europe. Seedlings are usually grown from seeds under combined nursery greenhouse/outdoors conditions, but commonly show early growth cessation in the nursery, resulting in small plants for field transplanting. This increases the production time and makes the seedlings vulnerable to stressors at the planting site. Day extension with far-red (FR) light was shown to enhance elongation and delay bud set in seedlings of some woody species, but such information is limited for Abies. Here, we investigated the effects of day extension with FR, red (R), different R:FR-ratios or blue (B) light from light emitting diodes on subalpine fir seedlings grown at different temperatures. Day extension with FR or combined R-FR light, in contrast to R or B light, increased shoot elongation significantly as compared to short days without day extension, often with more growth at 18 • C than 24 • C. The FR treatments delayed terminal bud development, although bud set was not completely prevented. These results demonstrate that larger seedlings of subalpine fir seedlings for Christmas tree production can be obtained by employing day extension with FR or combined R:FR light, preferably under cool temperature.

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Effects of Light Quality Under Red and Blue Light Emitting Diodes on Growth and Expression of Fbp28 in Petunia

Cited by 37 publications

References 11 publications

Antagonistic action of blue and red light on shoot elongation in petunia depends on gibberellin, but the effects on flowering are not generally linked to gibberellin

Antagonistic action of blue and red light on shoot elongation in petunia depends on gibberellin, but the effects on flowering are not generally linked to gibberellin

Spectral effects of LEDs on chlorophyll fluorescence and pigmentation in Phalaenopsis ‘Vivien’ and ‘Purple Star’

Day Extension with Far-Red Light Enhances Growth of Subalpine Fir (Abies lasiocarpa (Hooker) Nuttall) Seedlings

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