Elevated air humidity increases UV mediated leaf and DNA damage in pea (Pisum sativum) due to reduced flavonoid content and antioxidant power

Innes, Sheona N.; Arve, Louise Elisabeth; Zimmermann, Boris; Nybakken, Line; Melby, Tone Ingeborg; Solhaug, Knut Asbjørn; Olsen, Jorunn E.; Torre, Sissel

doi:10.1039/c8pp00401c

Cited by 11 publications

(7 citation statements)

References 77 publications

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“…The increase in temperature was related to UV radiation in sunlight which causes DNA damage. 19 Other supporting factors are pressure and the type of surface where the DNA touch was attached. The pressure produced by the face shield strap was influenced by the elasticity of the strap, which was correlated to the respondent's head size.…”

Section: Resultsmentioning

confidence: 99%

Analysis of time exposure to DNA touch quality on face shield using STR CODIS – TH01 and D18S51

Puspa

B.Tena²,

Setiawan

et al. 2022

J. Teknol. Laboratorium

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A number of countries, including Indonesia, have taken preventive measures and made efforts to break the chain of the spread of COVID-19. The impact of government policies is felt in the economic sector, which causes many people to lose their jobs but is required to meet the needs of daily life. This affects the increase in crime rates during the pandemic, which coincides with the government's policy to implement health protocols by using face shields outside the home. This allows the discovery of evidence in the form of a face shield to be identified through DNA touch. This type of research is experimental analytic with a time-series design. This study aims to analyze the effect of exposure to the environmental temperature range of 28.2 oC - 29.3 oC and humidity range of 88 - 94.2% on the quality of DNA touch on the face shield by giving the 1st, 7th, and 14th-day duration treatment using STR CODIS. TH01 and D18S5. The result is an effect of prolonged exposure time on DNA quality, as evidenced by the Anova test with p < 0.05.

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Section: Resultsmentioning

confidence: 99%

Analysis of time exposure to DNA touch quality on face shield using STR CODIS – TH01 and D18S51

Puspa

B.Tena²,

Setiawan

et al. 2022

J. Teknol. Laboratorium

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“…The interaction between temperature, humidity and solar radiation has been reported in many studies [45,46,50,[57][58][59][60]. For example, temperature directly affects plant water availability, because of its ability to modulate plant water use via effects on VPD [61,62].…”

Section: Solar Radiation (Par Irradiance)mentioning

confidence: 99%

Protected Cropping in Warm Climates: A Review of Humidity Control and Cooling Methods

2019

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The projected increase of the world’s population, coupled with the shrinking area of arable land required to meet future food demands, is building pressure on Earth’s finite agricultural resources. As an alternative to conventional farming methods, crops can be grown in protected environments, such as traditional greenhouses or the more modern plant factories. These are usually more productive and use resources more efficiently than conventional farming and are now receiving much attention—especially in urban and peri-urban areas. Traditionally, protected cropping has been predominantly practised in temperate climates, but interest is rapidly rising in hot, arid areas and humid, tropical regions. However, maintaining suitable climatic conditions inside protected cropping structures in warm climates—where warm is defined as equivalent to climatic conditions that require cooling—is challenging and requires different approaches from those used in temperate conditions. In this paper, we review the benefits of protected cropping in warm climates, as well as the technologies available for maintaining a controlled growing environment in these regions. In addition to providing a summary of active cooling methods, this study summarises photovoltaic (PV)-based shading methods used for passive cooling of greenhouses. Additionally, we also summarise the current humidity-control techniques used in the protected cropping industry and identify future research opportunities in this area. The review includes a list of optimum growing conditions for a range of crop species suited to protected cropping in warm climates.

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“…Due to the lack of flavonoid content and oxidative stress, pea plants were more impressionable to UV-B radiation in high air humidity than in moderate air humidity [40]. Anthocyanin and flavonols play essential roles in apple plants by combating the harmful effects of UV-B radiation stress, and more flavonols are produced by apple fruit peels exposed to higher levels of UV-B radiation [41,42]. The accumulation of "sunscreen" flavonoids to prevent or limit damage under UV-B radiation stress is widely common among plants.…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Analysis Reveals the Involvement of Flavonoids Synthesis Genes and Transcription Factors in Dracaena cambodiana Response to Ultraviolet-B Radiation

Liang

Zhang

Zhu

et al. 2023

Forests

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Ultraviolet-B (UV-B) radiation is a major abiotic stress that dragon trees are exposed to during their growth and development; however, it is also an environmental signal perceived by plants that affects the flavonoid pathway. Previous studies have demonstrated that amounts of flavonoids are contained in dragon tree resin, otherwise known as dragon’s blood. However, the traits and mechanism involved in the UV-B-mediated increase in flavonoids in dragon trees are still unknown. Here, we studied the response of Dracaena cambodiana under full solar UV-B radiation. The results showed that the contents of total flavonoids in D. cambodiana significantly increased after UV-B radiation exposure. Then, the transcriptome was used for determining the interactive mechanism of flavonoid accumulation and UV-B stress. Differential expression analyses identified 34 differentially expressed genes (DEGs) involved in flavonoid synthesis; specifically, 24 of the identified DEGs were significantly up-regulated after UV-B radiation exposure. In addition, 57 DEGs involved in Ca2+/kinase sensors, 58 DEGs involved in ROS scavenging and the plant hormone pathway, and 116 DEGs transcription factors in 5 families were further identified and analyzed. Finally, we deduced the potential mechanism of UV-B-promoting flavonoid formation to neutralize ROS damage derived from UV-B radiation in D. cambodiana based on the gene co-expression network and previous studies from other plants. Considering that wild dragon tree populations are currently highly threatened by anthropogenic and natural stressors, the interactive studies between D. cambodiana plants and UV-B radiation provide valuable information toward understanding the mechanism of dragon’s blood formation and help us reveal the evolution of D. cambodiana, with the eventual goal of aiding in the global conservation of this precious biological resource.

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Elevated air humidity increases UV mediated leaf and DNA damage in pea (Pisum sativum) due to reduced flavonoid content and antioxidant power

Abstract: Growth in high relative air humidity causes diminished response to stomatal closing signals and increases susceptibility to UV-induced damage.

Cited by 11 publications

References 77 publications

Analysis of time exposure to DNA touch quality on face shield using STR CODIS – TH01 and D18S51

Analysis of time exposure to DNA touch quality on face shield using STR CODIS – TH01 and D18S51

Protected Cropping in Warm Climates: A Review of Humidity Control and Cooling Methods

Transcriptomic Analysis Reveals the Involvement of Flavonoids Synthesis Genes and Transcription Factors in Dracaena cambodiana Response to Ultraviolet-B Radiation

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