Photoprotection Of Plants Via Optical Screening

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Stress-Induced Buildup of Screening Pigments | SpringerLink

The induction of the synthesis of screening compounds in plants by elevated fluxes of natural solar radiation as well as by artificial photosynthetically active radiation (PAR) and/or UV radiation is one of the most documented and extensively reviewed stress response (see, e.g., Caldwell et al. (), Cockell and Knowland (), Vogt et al. ()).At the same time, the buildup of …

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Screening Pigments: General Questions | SpringerLink

The mechanism of photoprotection of algae and higher plants by extrathylakoid or extraplastidic carotenoids based on optical screening of the excessive radiation has been discussed for several decades and is generally acknowledged by now (Ben-Amotz et al. 1989; Bidigare et al. 1993; Hagen et al. 1993, 1994; Hanagata and Dubinsky 1999; Hormaetxe ...

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Photoprotection in Plants Optical Screening-based Mechanisms . Optical screening of excessive and potentially harmful solar radiation is an important photoprotective mechanism, though it has received much less attention in comparison with other systems preventing photooxidative damage to photoautotrophic organisms. This photoprotection in the ...

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The Optical Properties of Leaf Structural Elements and Their

Plants 2021, 10, 1455 3 of 18 (g) bundle sheath extension light scattering and path lengthening, (h) sclereid light transfer, and (i) bamboo's fusoid cell.Five elements are superficial (a–e) and four elements are located in the mesophyll (f–i).The structural elements presented are highlighted in magenta in each drawing. In each structural element, arrows (red for photosynthetically ...

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Photoprotection in plants: a new light on photosystem II damage

Sunlight damages photosynthetic machinery, primarily photosystem II (PSII), and causes photoinhibition that can limit plant photosynthetic activity, growth and productivity. The extent of photoinhibition is associated with a balance between the rate of photodamage and its repair. Recent studies have shown that light absorption by the manganese cluster in the …

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Photoprotection in Plants Optical Screening-Based Mechanisms

COUPON: RENT Photoprotection in Plants Optical Screening-Based Mechanisms 1st edition (9783642138867) and save up to 80% on 📚textbook rentals and 90% on 📙used textbooks. ... Photoprotection in Plants 1st edition Optical Screening-Based Mechanisms. ISBN: 3642138861. ISBN-13: 9783642138867. Authors: Alexei Solovchenko. eTextbook. Instant ...

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[PDF] Photoabatement by Anthocyanin Shields

It is concluded that photoabatement by anthocyanin is a mechanism for allowing maintenance of higher oxidative levels of PS2 acceptor during episodes of high radiation stress, thereby minimizing photodamage to photosynthetic tissues. Leaves and other chlorophyllous tissues of plants often show transient or permanent anthocyanin coloration. The question of …

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Photoprotection in plants: a new light on photosystem II damage

A model of photoprotection mechanisms in plants. Light damages PSII primarily through excitation of the manganese cluster in OEC. ... To cope with UV damage, plants accumulate UV-screening compounds, such as phenolics, in the leaf epidermis (Figure 1 c). The basic structure of phenolic compounds involves an aromatic ring(s) with hydroxyl group ...

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