Enhanced UV‐B Radiation Increases Glyphosate Resistance in Velvetleaf (<i>Abutilon theophrasti</i>)

Yin, Lina; Zhang, Mingcai; Li, Zhaohu; Liu, Duan; Wang, Shiwen

doi:10.1111/j.1751-1097.2012.01234.x

Cited by 5 publications

(3 citation statements)

References 32 publications

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“…UV-B radiation induces changes in whole leaf morphology, such as shorter petioles, shorter stems, and thicker and smaller leaves, which can affect radiation interception in canopy structure [8,42]. In this study, the UV-B treatment also induced smaller leaves than the control (Table 2), which is consistent with previous studies [43][44][45]. However, the low and short-term UV-B doses did not cause noticeable changes in total leaf area or PAR interception (Table 3, Figure 1a,c and Figure 2a).…”

Section: Leaf Morphology Optical Property and Uv-b Radiation Intercesupporting

confidence: 91%

Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

Yoon

Kim

Jae-Woo

et al. 2021

IJMS

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Ultraviolet-B (UV-B) acts as a regulatory stimulus, inducing the dose-dependent biosynthesis of phenolic compounds such as flavonoids at the leaf level. However, the heterogeneity of biosynthesis activation generated within a whole plant is not fully understood until now and cannot be interpreted without quantification of UV-B radiation interception. In this study, we analyzed the spatial UV-B radiation interception of kales (Brassica oleracea L. var. Acephala) grown under supplemental UV-B LED using ray-tracing simulation with 3-dimension-scanned models and leaf optical properties. The UV-B-induced phenolic compounds and flavonoids accumulated more, with higher UV-B interception and younger leaves. To distinguish the effects of UV-B energy and leaf developmental age, the contents were regressed separately and simultaneously. The effect of intercepted UV-B on flavonoid content was 4.9-fold that of leaf age, but the effects on phenolic compound biosynthesis were similar. This study confirmed the feasibility and relevance of UV-B radiation interception analysis and paves the way to explore the physical and physiological base determining the intraindividual distribution of phenolic compound in controlled environments.

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Section: Leaf Morphology Optical Property and Uv-b Radiation Intercesupporting

confidence: 91%

Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

Yoon

Kim

Jae-Woo

et al. 2021

IJMS

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“…UV-B radiation has been enhanced in recent years and it has aroused widespread concern [4,[29][30][31][32][33][34][35]. People have paid more and more attention to the problem of how to repair the damage caused by enhanced UV-B radiation.…”

Section: Discussionmentioning

confidence: 99%

He–Ne laser influenced actin filaments alleviate the damage of UV-B in wheat

Chen

Han

2014

Laser Phys.

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This work investigated the use of a He-Ne laser in alleviating the damaging effects of ultraviolet-B (UV-B) radiation on wheat seedlings by influenced actin filaments. Triticum aestivum seedlings were irradiated with either enhanced UV-B (10.08 KJ m −2 d −1 ) or a combination of UV-B light and the He-Ne laser. Plants were also exposed to the He-Ne laser alone. In order to compare the effect of the He-Ne laser, red light (same power and wavelength as the He-Ne laser) treatment and the combined UV-B and red light treatment were added. Moreover, wheat seedlings were treated with actin special drugs, including cytochalasin B (CB) and jasplakinolide (JAS). We analyzed the growth of the seedlings, the distribution of actin filaments (AFs), DNA laddering and ACTIN expression in the different groups. The results showed that enhanced UV-B produced negative effects on the growth of wheat seedlings while implementing the He-Ne laser partially alleviated the injury. With the red light treatment, there are no positive effects. The ACTIN expression stayed the same in the different treatments, while the distribution and the protein content are different. The Fourier transform infrared (FTIR) microspectroscopic results further established significant changes in the chemical composition of the wall material. These results suggested that the He-Ne laser alleviated the damaging effects of UV-B radiation in wheat seedlings by changing the characteristics of the AFs.

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“…Samples were taken at 0, 2, 4, and 6 days after treatment and kept in a deep freezer at -80 o C for further analysis and RNA extraction. For UV-B stress, four-weekold potato plants were supplied with normal growth light plus 8 h UV-B radiation (308 nm; +2.7 kJ m -2 day -1 ) according to the method of Yin et al [53], and for drought stress, plants were restricted from water for 6 days.…”

Section: Treatmentsmentioning

confidence: 99%

Enhanced Salt Stress Tolerance in Transgenic Potato Plants Expressing IbMYB1, a Sweet Potato Transcription Factor

Cheng¹,

Kim²,

Deng³

et al. 2013

Journal of Microbiology and Biotechnology

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IbMYB1, a transcription factor (TF) for R2R3-type MYB TFs, is a key regulator of anthocyanin biosynthesis during storage of sweet potatoes. Anthocyanins provide important antioxidants of nutritional value to humans, and also protect plants from oxidative stress. This study aimed to increase transgenic potatoes' (Solanum tuberosum cv. LongShu No.3) tolerance to environmental stress and enhance their nutritional value. Transgenic potato plants expressing IbMYB1 genes under the control of an oxidative stress-inducible peroxidase (SWPA2) promoter (referred to as SM plants) were successfully generated through Agrobacterium-mediated transformation. Two representative transgenic SM5 and SM12 lines were evaluated for enhanced tolerance to salinity, UV-B rays, and drought conditions. Following treatment of 100 mM NaCl, seedlings of SM5 and SM12 lines showed less root damage and more shoot growth than control lines expressing only an empty vector. Transgenic potato plants in pots treated with 400 mM NaCl showed high amounts of secondary metabolites, including phenols, anthocyanins, and flavonoids, compared with control plants. After treatment of 400 mM NaCl, transgenic potato plants also showed high DDPH radical scavenging activity and high PS II photochemical efficiency compared with the control line. Furthermore, following treatment of NaCl, UV-B, and drought stress, the expression levels of IbMYB1 and several structural genes in the flavonoid biosynthesis such as CHS, DFR, and ANS in transgenic plants were found to be correlated with plant phenotype. The results suggest that enhanced IbMYB1 expression affects secondary metabolism, which leads to improved tolerance ability in transgenic potatoes.

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Enhanced UV‐B Radiation Increases Glyphosate Resistance in Velvetleaf (Abutilon theophrasti)

Cited by 5 publications

References 32 publications

Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

He–Ne laser influenced actin filaments alleviate the damage of UV-B in wheat

Enhanced Salt Stress Tolerance in Transgenic Potato Plants Expressing IbMYB1, a Sweet Potato Transcription Factor

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