Photomorphogenesis and Photoperiodism in Plants

Weller, James L.; Kendrick, Richard E.

doi:10.1007/978-1-4939-1468-5_19

Cited by 6 publications

(4 citation statements)

References 210 publications

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“…Light has a strong influence on plants on a wide range of processes such as photosynthesis (Galtier et al, 1995), photomorphogenesis and photoperiodism (Weller and Kendrick, 2014) and ripening (Giovannoni, 2004). Although it has been demonstrated that light affects vitamin C content (Gatzek et al, 2002;Tabata et al, 2002;Bartoli et al, 2009;Zushi et al, 2014), in the case of fruit ripening, LED (Xu et al, 2012) and UV-C (Liu et al, 2009) light has been used to improve yield and fruit quality, respectively.…”

Section: Discussionmentioning

confidence: 99%

Nocturnal low irradiance pulses improve fruit yield and lycopene concentration in tomato

Grozeff

Senn

Alegre

et al. 2016

Scientia Horticulturae

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Section: Discussionmentioning

confidence: 99%

Nocturnal low irradiance pulses improve fruit yield and lycopene concentration in tomato

Grozeff

Senn

Alegre

et al. 2016

Scientia Horticulturae

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“…Light quality, which refers to the spectral composition of light, is a key regulator of plant growth through various photoreceptors, which are involved in light sensing and downstream signal transduction (Ward et al 2005;Weller and Kendrick 2008). Different wavelengths of light are perceived by a complex network of photosensory pathways that enable plants to selectively activate individual pathways by inducing the expression of genes related to several physiological and metabolic functions (Whitelam and Halliday 2007;Li et al 2012a, b).…”

Section: Discussionmentioning

confidence: 99%

Increasing the functional quality of Crocus sativus L. by-product (tepals) by controlling spectral composition

Orlando

Trivellini

Puccinelli

et al. 2022

Hortic. Environ. Biotechnol.

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Crocus sativus L. is a crop grown for spice production, and large amounts of residues from the flowers are produced during the process. The underutilized by-product from saffron spice production, the C. sativus tepals, was investigated as a promising raw material of natural bioactive compounds using light spectrum manipulation in controlled environments. The plants were grown under either light-emitting diodes (LEDs) or natural light (NL, greenhouse). LED experiments were performed in controlled-environment chambers (120 µmol m–2 s–1of photosynthetically active radiation, 18 °C, 16-h photoperiod). The LED treatments used were as follows: (i) red ʎ = 660 nm (62%) and blue ʎ = 450 nm (38%) (RB); and (ii) red ʎ = 660 nm (50%), green ʎ = 500–600 nm (12%), and blue ʎ = 4 50 nm (38%) (RGB). Flower growth parameters, total phenols, total flavonoids, flavonols, flavonol glycosides, and antioxidant properties were measured in harvested tepals. Floral by-products from plants grown under the two LED treatments accumulated higher amounts of antioxidant compounds compared to those of plants grown under NL. The total flavonoids content was significantly enhanced in the RGB LED treatment, while the corolla fresh weight significantly declined in the same treatments. The higher content of bioactive secondary metabolites in plants grown under both RB and RGB light environments resulted in increased antioxidant capacity measured by DPPH free-radical scavenging capacity and the ferric reducing antioxidant power method. These results indicate that manipulation of LED spectra could boost secondary metabolites and antioxidant capacity to obtain phytochemically enriched floral by-products with superior functional quality.

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“…The perception of the circadian clock and photoperiodism in photoinducible plants involves phytochromes and cryptochromes, photoreceptors of the red/far red and the blue wavelengths, respectively [ 17 ]. These photoreceptors act in the leaf by generating a complex network of light signal transduction, considered at the base of the photoperiodic control of flowering time in both SD and LD plants [ 18 ].…”

Section: Mechanisms Of Flower Induction: Endogenous Signals and Envir...mentioning

confidence: 99%

Flowering Mechanisms and Environmental Stimuli for Flower Transition: Bases for Production Scheduling in Greenhouse Floriculture

Proietti

Scariot

Pascale

et al. 2022

Plants

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The scheduling of plant production is a critical aspect in modern floriculture since nowadays, sales are not oriented toward the recurring holidays as in the past, but always more toward impulse buying, implying a more diverse and constant demand on the market. This requires continuous production, often regulated by precise commercial agreements between growers and buyers, and between buyers and dealers, particularly in large-scale retail trade. In this scenario, diverse techniques to modulate the duration of the growing cycle, by hastening or slowing down plant growth and development, have been developed to match plant flowering to the market demand. Among the numerous approaches, the manipulation of climatic parameters in the growth environment is one of the most common in greenhouse floriculture. In this review, we summarize the physiological and biochemical bases underlying the main mechanisms of flowering, depending on the plant reaction to endogenous signals or environmental stimuli. In addition, the strategies based on the control of temperature (before or after planting) and light environment (as light intensity and spectrum, and the photoperiod) in the scheduling of flower and ornamental crop production are briefly described.

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Photomorphogenesis and Photoperiodism in Plants

Cited by 6 publications

References 210 publications

Nocturnal low irradiance pulses improve fruit yield and lycopene concentration in tomato

Nocturnal low irradiance pulses improve fruit yield and lycopene concentration in tomato

Increasing the functional quality of Crocus sativus L. by-product (tepals) by controlling spectral composition

Flowering Mechanisms and Environmental Stimuli for Flower Transition: Bases for Production Scheduling in Greenhouse Floriculture

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