UV-B stress-induced ABA production in Arabidopsis thaliana mutants defective in ethylene signal transduction pathway

Rakitin, V. Yu.; Karyagin, V. V.; Rakitina, T. Ya.; Prudnikova, O. N.; Власов, П. А.

doi:10.1134/s1021443708060174

Cited by 16 publications

(11 citation statements)

References 12 publications

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“…In these experiments grapevines were exposed to high ambient UV-B levels (irradiances that reach up to 0.40 W m −2 ), and it was found that ABA levels increased in leaves, but not in berry skins, as compared with treatments in which UV-B have been filtered. A similar effect in leaves of Arabidopsis was found by Rakitin et al [92], supporting a promotive effect of UV-B on ABA biosynthesis in tissues exposed to high ambient UV-B. Other studies reported the interaction between drought (condition that increases the endogenous ABA levels in xylem flow [68]) and UV-B, where water restriction treatments decreased the sensitivity to UV-B in different plant species [27,93].…”

Section: Aba and Uv-bsupporting

confidence: 78%

UV-B and abscisic acid effects on grape berry maturation and quality

Berli,

Bottini

2013

Journal of Berry Research

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This review provides an overview of existing literature on the effects of ultraviolet-B (UV-B) radiation and abscisic acid (ABA) on physiological and biochemical aspects affecting grape berry (Vitis vinifera L.) growth, maturation and their quality for winemaking. The UV-B (280-315 nm) comprises only a small fraction of sunlight that reaches the Earth's surface, but has enough energy to cause large photobiological effects on higher plants. The UV-B levels are greater in the tropics than in upper latitudes and also increase with altitude, hence some vineyards are exposed to high UV-B but photoprotection and repair mechanisms are usually sufficient to prevent the occurrence of damage in grapevine tissues. ABA is a phytohormone that, aside to control stomatal aperture, regulates acclimation to adverse environmental conditions, and controls grape berry maturation (non-climacteric). A promotive effect of UV-B on ABA biosynthesis has been found in grapevine leaves. Accumulation of phenols (namely phenolic acids, stilbenes and flavonoids) is an acclimation and protective response against UV-B, either directly by absorbing UV-B in epidermal tissues and/or by reducing its penetration through underlying tissues, or indirectly by scavenging free radicals so acting as antioxidants. High UV-B and ABA applications increase total phenols in grape berries, but those with higher antioxidant capacity (i.e. dihydroxylated anthocyanidins and flavonols like quercetin) are increased relatively more. These treatments also hasten berry sugar and phenol accumulation, but reduce berry growth and sugar per berry at harvest, and therefore decrease yield. The quality of grape berries for winemaking integrates various aspects, but for red wines, it has a high correlation with accumulation of phenolics stimulated by UV-B and ABA.

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Section: Aba and Uv-bsupporting

confidence: 78%

UV-B and abscisic acid effects on grape berry maturation and quality

Berli,

Bottini

2013

Journal of Berry Research

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“…Several studies attempt to relate the interaction incorporating UV-B and ABA, but some of it concludes that the presence of ABA enhance the tolerance of grapevines to UV-B ( Berli et al, 2010 , 2011 ). The same effect was observed by Rakitin et al (2008) in leaves of Arabidopsis creating a positive effect of UV-B on ABA synthesis in tissues during high exposure to UV-B. Whereas additional studies reported that the interaction between water stress conditions to UV-B radiation observes a less sensitivity to UV-B in various plant species during drought conditions ( Berli and Bottini, 2013 )…”

Section: Aba and Abiotic Stress Signalingmentioning

confidence: 61%

Abscisic Acid Signaling and Abiotic Stress Tolerance in Plants: A Review on Current Knowledge and Future Prospects

et al. 2017

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Abiotic stress is one of the severe stresses of environment that lowers the growth and yield of any crop even on irrigated land throughout the world. A major phytohormone abscisic acid (ABA) plays an essential part in acting toward varied range of stresses like heavy metal stress, drought, thermal or heat stress, high level of salinity, low temperature, and radiation stress. Its role is also elaborated in various developmental processes including seed germination, seed dormancy, and closure of stomata. ABA acts by modifying the expression level of gene and subsequent analysis of cis-and trans-acting regulatory elements of responsive promoters. It also interacts with the signaling molecules of processes involved in stress response and development of seeds. On the whole, the stress to a plant can be susceptible or tolerant by taking into account the coordinated activities of various stress-responsive genes. Numbers of transcription factor are involved in regulating the expression of ABA responsive genes by acting together with their respective cis-acting elements. Hence, for improvement in stresstolerance capacity of plants, it is necessary to understand the mechanism behind it. On this ground, this article enlightens the importance and role of ABA signaling with regard to various stresses as well as regulation of ABA biosynthetic pathway along with the transcription factors for stress tolerance.

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“…In contrast, the levels of IAA notably decreased in treated plants, which may be linked to the inhibition of auxin biosynthesis by UV-B, as reported [44]. UV-B may induce the isomerization of ABA to 50% trans, trans and 50% cis, trans [40,45], the latter being the active form; consequently, in tissues where UV-B penetrates, the amount of active ABA may be negatively affected. Among cytokinins, zeatin and its derivatives are the most important group of isoprenoid cytokinins.…”

Section: Discussionmentioning

confidence: 83%

UV-B Exposure of Black Carrot (Daucus carota ssp. sativus var. atrorubens) Plants Promotes Growth, Accumulation of Anthocyanin, and Phenolic Compounds

et al. 2019

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Black carrot (Daucus carota L. ssp. sativus var. atroburens) is a root vegetable with anthocyanins as major phenolic compounds. The accumulation of phenolic compounds is a common response to UV-B exposure, acting as protective compounds and as antioxidants. In the present study, black carrot plants grown under a 12-h photoperiod were supplemented with UV-B radiation (21.6 kj m−2 day−1) during the last two weeks of growth. Carrot taproots and tops were harvested separately, and the effect of the UV-B irradiance was evaluated in terms of size (biomass and length), total monomeric anthocyanin content (TMC), total phenolic content (TPC), and phytohormones levels. The results showed that UV-B irradiance promoted plant growth, as shown by the elevated root (30%) and top (24%) biomass, the increased TMC and TPC in the root (over 10%), and the increased TPC of the top (9%). A hormone analysis revealed that, in response to UV-B irradiance, the levels of abscisic acid (ABA), jasmonic acid (JA), and salicylic acid (SA) decreased in tops while the level of the cytokinins cis-zeatin (cZ) and trans-zeatinriboside (tZR) increased in roots, which correlated with an amplified growth and the accumulation of anthocyanins and phenolic compounds. Beyond the practical implications that this work may have, it contributes to the understanding of UV-B responses in black carrot.

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UV-B stress-induced ABA production in Arabidopsis thaliana mutants defective in ethylene signal transduction pathway

Cited by 16 publications

References 12 publications

UV-B and abscisic acid effects on grape berry maturation and quality

UV-B and abscisic acid effects on grape berry maturation and quality

Abscisic Acid Signaling and Abiotic Stress Tolerance in Plants: A Review on Current Knowledge and Future Prospects

UV-B Exposure of Black Carrot (Daucus carota ssp. sativus var. atrorubens) Plants Promotes Growth, Accumulation of Anthocyanin, and Phenolic Compounds

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