Light quality influences adventitious shoot production from cotyledon explants of lettuce (Lactuca sativa L.)

Hunter, Denise C.; Burritt, David J.

doi:10.1079/ivp2003492

Cited by 47 publications

(38 citation statements)

References 25 publications

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“…However, individually, each light wavelength contains different properties that produces a variety of results that vary from its predecessor, and plants respond to the quality (spectral distribution) of the incident light which can be mediated by inhibition of specific wavelength for improving the utilization of solar radiation by agricultural crops. Hunter and Burritt (2004) found that blue light inhibited shoot production while red light either promoted production or had no effect on lettuce plants. Cleland and Briggs (1967) noticed an improved flowering response under continuous red light treatment.…”

Section: Introductionmentioning

confidence: 98%

Performance of gerbera cultivars under different wavelengths of solar spectrum

Mehraj

Taufique

Ona

et al. 2014

J Bangladesh Acad Sci

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Section: Introductionmentioning

confidence: 98%

Performance of gerbera cultivars under different wavelengths of solar spectrum

Mehraj

Taufique

Ona

et al. 2014

J Bangladesh Acad Sci

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“…In commercial plant production, light intensity and quality play roles in the establishment of photosynthesis and morphogenesis of many plant species and are essential factors for plant growth and development under greenhouse conditions (Amudha et al, 2005;Heo et al, 2002Heo et al, , 2003Heo et al, , 2006Heo et al, , 2009Kim et al, 2004). In several plant species, it has been suggested that using LEDs as light sources under in vitro or ex vitro conditions may have valuable effects on growth, vegetable quality, or biochemical responses such as increasing of phenolic compound, and ascorbic acid content (Hunter and Burritt, 2004;Ohashi-Kaneko et al, 2007;Qian and Kubota, 2009;Wu et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Early Growth, Pigmentation, Protein Content, and Phenylalanine Ammonia-lyase Activity of Red Curled Lettuces Grown under Different Lighting Conditions

Heo¹,

Kang²,

Bang³

et al. 2012

Korean Journal of Horticultural Science and Technology

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Abstract. Early growth, pigmentation, protein content, and phenylalanine ammonia-lyase (PAL) activity of red curly lettuces (Lactuca sativa L.) grown under different lighting conditions were investigated. Fluorescent lamps (control), blue, red, and blue plus red light-emitting diodes (LEDs) were used as light sources for 10 days. An equal proportion (1:1) of blue and red LEDs was used in the mixed radiation condition. Compared with the control, monochromic red or blue lighting increased fresh and dry weights of 'Ttuksum' and 'Jaju' lettuces. Anthocyanin synthesis was also significantly promoted by the mixed radiation of blue and red LEDs. The mixed radiation also increased the protein content and PAL enzyme activity of 'Ttuksum' leaves by about 200% compared to other treatments. Anthocyanin content was the highest in lettuces subjected to the mixture radiation of blue and red light treatment, while anthocyanin synthesis was inhibited by monochromic red light. The results of the present study indicate that growth and pigment synthesis in lettuces are significantly enhanced by exposure to mixed radiation from blue and red LEDs.

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“…Pode-se observar que folhas cotiledonares de alface possuem elevada resposta à morfogênese in vitro, tanto para embriogênese somática (STUART & MCCALL, 1992;ZHOU et al, 1992;NOLAN et al,2009) quanto para organogênese, quando se utilizam cotilédones inteiros (HUNTER & BURRITT, 2002;KANAMOTO et al, 2006;FRANKLIN et al, 2011) ou folhas contiledonares seccionadas (HUNTER & BURRITT, 2004).…”

Section: Resultsunclassified

Propagação in vitro de genótipos de alface via embriogênese somática

et al. 2012

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A propagação in vitro via embriogênese somática é uma alternativa eficiente para a propagação em larga escala do material vegetal. No entanto, não há relatos do desenvolvimento de protocolos completos de embriogênese somática, com produção de plantas de alface. O presente trabalho teve como objetivo estabelecer a propagação in vitro de genótipos de alface, Paris White e Red Salad Bowl, avaliando a indução dos calos embriogênicos, regeneração dos embriões somáticos e posterior conversão em plantas. Para a indução de embriogênese somática, duas fontes de explante (folhas cotiledonares inteiras e seccionadas) foram cultivadas em meio MS+10,75µM de ANA+0,89µM de BA. A proliferação dos calos embriogênicos foi realizada em meio MS+24µM de AIA+0,15µM de BA. Para a maturação dos embriões somáticos e conversão em plantas, utilizou-se meio MS sem regulador de crescimento (semi-sólido sem carvão ativado e com carvão ativado e meio líquido). A fonte do explante seccionada foi estatisticamente superior apenas para o genótipo Paris White. Para a regeneração dos embriões somáticos, observou-se que, no genótipo Paris White, o meio líquido foi superior estatisticamente, quando comparado aos meios semi-sólidos e, para o genótipo Red Salad Bowl, foi o meio semi-sólido com acréscimo de carvão ativado. Tendo em vista o potencial da aplicabilidade comercial da embriogênese somática para a produção em larga escala de plântulas de alface do genótipo Paris White, os protocolos de indução, proliferação, maturação dos embriões somáticos e conversão em plantas, foram adequados, em especial, em sistema líquido.

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Light quality influences adventitious shoot production from cotyledon explants of lettuce (Lactuca sativa L.)

Cited by 47 publications

References 25 publications

Performance of gerbera cultivars under different wavelengths of solar spectrum

Performance of gerbera cultivars under different wavelengths of solar spectrum

Early Growth, Pigmentation, Protein Content, and Phenylalanine Ammonia-lyase Activity of Red Curled Lettuces Grown under Different Lighting Conditions

Propagação in vitro de genótipos de alface via embriogênese somática

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