Plant Response

Gupta, Sunil K.; Sharma, Meenakshi; Deeba, Farah; Pandey, Vivek

doi:10.1002/9781119143611.ch12

Cited by 11 publications

(3 citation statements)

References 209 publications

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“…The second protein capable of interacting with with PHOT1 is RPT2 (ROOT PHOTOTROPISM 2) which is also (similarly to NPH3) involved in the phototropism and stomata opening [35,36]. [37], [38], [39], [40]).…”

Section: Basic Description Of Photoreceptors and Mechanism Of Its Act...mentioning

confidence: 99%

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Complex Role of Photoreceptors in Light and Temperature Sensing: From Mechanism to the Target Genes Regulation. A Focus on the Genes Related to the Biosynthesis of Phenolic Compounds

Volná,

Červeň,

Nezval

et al. 2024

Preprint

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Due to the ongoing climate change plants face multiple stress factors (mainly the abiotic ones) simultaneously, which means that the reduced yields of critical crops (including wheat, rice, or barley) can be expected. Therefore, our understanding of the light and temperature sensing mechanisms and related signaling is of primary importance. Herein we present a review focused on the direct sensing (ensured via photoreceptors) of light, which is the main abiotic factor driving the development, phenology, and especially resistance against oxidative stress via the increased accumulation of protective metabolites of crops. Thus, in the following text, special attention is paid to the description of the plant photoreceptors, their mode of action, ranges of perception, and related signaling pathways leading to the activation of target transcription factors. These finally lead to alterations in the expression of target genes related to photoprotection. Due to the focus of our research, genes related to the production of phenolic compounds (PheCs) were selected as a representative group of target genes having a UV-screening, and antioxidative function meaning that their activation and activity of resulting proteins can significantly contribute to the increased tolerance of plants against stress cues.

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Section: Basic Description Of Photoreceptors and Mechanism Of Its Act...mentioning

confidence: 99%

“…Figure1. Domain architecture and absorption ranges of the photoreceptors (Schemes were adopted and modified based on publications[37],[38],[39],[40]). …”

mentioning

confidence: 99%

Complex Role of Photoreceptors in Light and Temperature Sensing: From Mechanism to the Target Genes Regulation. A Focus on the Genes Related to the Biosynthesis of Phenolic Compounds

Volná,

Červeň,

Nezval

et al. 2024

Preprint

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“…Plants respond to light stress by producing and accumulating PSM (Thirumurugan et al, 2018). The impact of UV radiation (>380 nm) and the visible light spectrum (380-740 nm) on PSM in greenhouse-grown crops has been well-studied (Urban et al, 2016;Gupta et al, 2017;Alrifai et al, 2019). However, the specific effects of light, including light properties (wavelength and intensity) and fixture configuration (i.e., overhead and subcanopy lighting) on cannabis PSM and phytochemistry is limited and not well-understood (Andre et al, 2016).…”

Section: The Impact Of Light Spectrum On Cannabis Psm Productionmentioning

confidence: 99%

Cannabinoids and Terpenes: How Production of Photo-Protectants Can Be Manipulated to Enhance Cannabis sativa L. Phytochemistry

Brousseau

MacPherson

et al. 2021

Front. Plant Sci.

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Cannabis sativa L. is cultivated for its secondary metabolites, of which the cannabinoids have documented health benefits and growing pharmaceutical potential. Recent legal cannabis production in North America and Europe has been accompanied by an increase in reported findings for optimization of naturally occurring and synthetic cannabinoid production. Of the many environmental cues that can be manipulated during plant growth in controlled environments, cannabis cultivation with different lighting spectra indicates differential production and accumulation of medically important cannabinoids, including Δ9-tetrahydrocannabinol (Δ9-THC), cannabidiol (CBD), and cannabigerol (CBG), as well as terpenes and flavonoids. Ultraviolet (UV) radiation shows potential in stimulating cannabinoid biosynthesis in cannabis trichomes and pre-harvest or post-harvest UV treatment merits further exploration to determine if plant secondary metabolite accumulation could be enhanced in this manner. Visible LED light can augment THC and terpene accumulation, but not CBD. Well-designed experiments with light wavelengths other than blue and red light will provide more insight into light-dependent regulatory and molecular pathways in cannabis. Lighting strategies such as subcanopy lighting and varied light spectra at different developmental stages can lower energy consumption and optimize cannabis PSM production. Although evidence demonstrates that secondary metabolites in cannabis may be modulated by the light spectrum like other plant species, several questions remain for cannabinoid production pathways in this fast-paced and growing industry. In summarizing recent research progress on light spectra and secondary metabolites in cannabis, along with pertinent light responses in model plant species, future research directions are presented.

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