Anatomical, physiological, and biochemical traits involved in the UV-B radiation response in highbush blueberry

Reyes‐Díaz, Marjorie; Meriño‐Gergichevich, Cristian; Inostroza‐Blancheteau, Claudio; Latsague, Mirtha; Acevedo, Patricio; Alberdi, Miren

doi:10.1007/s10535-015-0580-4

Cited by 12 publications

(6 citation statements)

References 70 publications

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“…The probable reason may be due to the increased thickness of mesophyll tissue layer in the leaf. Recently, similar observations were recorded in the blueberry leaves with greater thickness being recorded in the younger leaves [20]. The increased leaf thickness can be considered a mechanism to resist penetration of excess UV-B.…”

Section: Discussionsupporting

confidence: 70%

Anatomical Changes Linked Lerformance of Two Indigenous Medicinal Plants, Withania Somnifera Dunal and Coleus Forskohlii Briq. Exposed to Supplemental Ultraviolet-B Radiation

Takshak¹,

Bhushan²

2017

EPP

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Supplemental ultraviolet-B (s-UV-B) radiation (ambient+3.6kJm -2 day -1 ) was given to two medicinal plants Withania somnifera and Coleus forskohlii for 3 h day -1 during the solar noon period. Changes at the anatomical level were studied in leaves and roots of the plants. Variations were observed in all s-UV-B treated plant-parts (except roots of W. somnifera). The changes included increased leaf thickness (W. somnifera), enhanced accumulation of UV-B absorbing compounds in leaves of both plants and roots of C. forskohlii, and reduced thickness of cork-and cambial cell layers in C. forskohlii. Due to reduction in the number of oil bodies in cork cells, essential oil content of C. forskohlii also reduced. The results suggest that the test plants are capable of defending themselves (at least partially) against s-UV-B; further in-depth studies are required to derive more substantial results linking the cellular level changes to the overall plant performance.

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Section: Discussionsupporting

confidence: 70%

Anatomical Changes Linked Lerformance of Two Indigenous Medicinal Plants, Withania Somnifera Dunal and Coleus Forskohlii Briq. Exposed to Supplemental Ultraviolet-B Radiation

Takshak¹,

Bhushan²

2017

EPP

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“…4B). Anthocyanins have been previously reported as being induced by stress factors in V. corymbosum (Inostroza-Blancheteau et al 2014, Rojas-Lillo et al 2014, Yañez-Mansilla et al 2015, Reyes-Díaz et al 2016. In our case, these cultivars did not show a clear induction of anthocyanins under UV-B radiation.…”

Section: Discussioncontrasting

confidence: 51%

Distinct physiological and metabolic reprogramming by highbush blueberry (Vaccinium corymbosum) cultivars revealed during long‐term UV‐B radiation

Luengo-Escobar

Alberdi

Acevedo

et al. 2017

Physiologia Plantarum

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Despite the Montreal protocol and the eventual recovery of the ozone layer over Antarctica, there are still concerns about increased levels of ultraviolet-B (UV-B) radiation in the Southern Hemisphere. UV-B induces physiological, biochemical and morphological stress responses in plants, which are species-specific and different even for closely related cultivars. In woody plant species, understanding of long-term mechanisms to cope with UV-B-induced stress is limited. Therefore, a greenhouse UV-B daily course simulation was performed for 21 days with two blueberry cultivars (Legacy and Bluegold) under UV-B irradiance doses of 0, 0.07 and 0.19 W m . Morphological changes, photosynthetic performance, antioxidants, lipid peroxidation and metabolic features were evaluated. We found that both cultivars behaved differently under UV-B exposure, with Legacy being a UV-B-resistant cultivar. Interestingly, Legacy used a combined strategy: initially, in the first week of exposure its photoprotective compounds increased, coping with the intake of UV-B radiation (avoidance strategy), and then, increasing its antioxidant capacity. These strategies proved to be UV-B radiation dose dependent. The avoidance strategy is triggered early under high UV-B radiation in Legacy. Moreover, the rapid metabolic reprogramming capacity of this cultivar, in contrast to Bluegold, seems to be the most relevant contribution to its UV-B stress-coping strategy.

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“…Plants ex-posed to UV exhibit a decline in photosynthesis, protein synthesis, and other biochemical processes. These impairments lead to the reductions in plant height, dry weight, leaf area, relative growth rate, and total biomass (Caldwell et al 2007;Kumari et al 2009;Piri et al 2011;Reddy et al 2013;Bacelar et al 2015;Reyes-Díaz et al 2016;Fina et al (Mhamdi & Breusegem 2018) Note: e --electron; 2H + -2 protons; Fe 2+ -iron divalent ion; t 1/2 -the half-life time; µs -microsecond; ns -nanosecond; ms -millisecond beside a delay in flowering and fruiting (Bassman et al 2003;Reddy et al 2013;Rai & Agrawal 2017). In addition, many studies referred to the negative impact of UV-B on stomatal conductance, which reduces the amount of CO 2 available for photosynthesis (Cechin et al 2007;Lidon et al 2012;Bacelar et al 2015;Cechin et al 2018;Reyes et al 2018;Reyes et al 2019).…”

Section: Uv-b Effects In Plantsmentioning

confidence: 99%

“…Several studies implied the rise in anthocyanins under UV-B stress (Tsormpatsidis et al 2008;Inostroza-Blancheteau et al 2014;Singh & Singh 2014;Reyes-Díaz et al 2016;Sebastian et al 2018;Del Valle et al 2020).…”

Section: Phenolic Compoundsmentioning

confidence: 99%

Effects of Ultraviolet-B Radiation in Plant Physiology

Nassour

Ayash

2021

Agriculture (Pol'nohospodárstvo)

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Over the past few decades, anthropogenic activities contributed to the depletion of the ozone layer, which increased the levels of solar ultraviolet-B (UV-B) radiation reaching the Earth`s surface. Generally, UV-B is harmful to all living organisms. It damages the cell`s Deoxyribonucleic acid (DNA), proteins, and lipids, and as a consequence, it affects the bio-membranes negatively. In this review, we summarize the major effects of UV-B in the plant`s main molecules and physiological reactions, in addition to the possible defence mechanisms against UV-B including accumulating UV-B absorbing pigments to alleviate the harmful impact of UV-B.

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Anatomical, physiological, and biochemical traits involved in the UV-B radiation response in highbush blueberry

Cited by 12 publications

References 70 publications

Anatomical Changes Linked Lerformance of Two Indigenous Medicinal Plants, Withania Somnifera Dunal and Coleus Forskohlii Briq. Exposed to Supplemental Ultraviolet-B Radiation

Anatomical Changes Linked Lerformance of Two Indigenous Medicinal Plants, Withania Somnifera Dunal and Coleus Forskohlii Briq. Exposed to Supplemental Ultraviolet-B Radiation

Distinct physiological and metabolic reprogramming by highbush blueberry (Vaccinium corymbosum) cultivars revealed during long‐term UV‐B radiation

Effects of Ultraviolet-B Radiation in Plant Physiology

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