Acclimation of clusterbean cotyledon to UV-B radiation in the presence of UV-A: partial restoration of photosynthetic energy balance and redox homeostasis

Joshi, Padmanava; Gartia, Sasmita; Pradhan, Manoj Kumar; Panigrahi, Srikanta; Nayak, Lalitendu; Biswal, Basanti

doi:10.1007/s11738-013-1245-6

Cited by 10 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As prolonged UV‐B irradiation has adverse effects on plant growth and development, the induction of flavonoid biosynthesis by a UV‐A treatment was also assayed. Some reports have described that a UV‐A pretreatment may decrease the negative effects of UV‐B radiation through increased UV‐B‐induced flavonol glycoside accumulation (Joshi et al 2013; Štroch et al 2015; Turnbull et al 2013). Interestingly, Morales et al (2013) have proposed that, in Arabidopsis, the UV‐B photoreceptor UVR8 could influence UV‐A‐regulated gene expression through its interaction with a UV‐A photoreceptor and signaling (Morales et al 2013).…”

Section: Flavonoids As Protective Compounds Against Light Exposurementioning

confidence: 99%

Recent advances on the roles of flavonoids as plant protective molecules after UV and high light exposure

Ferreyra

Serra

Casati

2021

Physiologia Plantarum

138

View full text Add to dashboard Cite

Flavonoids are plant specialized metabolites that consist of one oxygenated and two aromatic rings. Different flavonoids are grouped according to the oxidation degree of the carbon rings; they can later be modified by glycosylations, hydroxylations, acylations, methylations, or prenylations. These modifications generate a wide collection of different molecules which have various functions in plants. All flavonoids absorb in the UV wavelengths, they mostly accumulate in the epidermis of plant cells and their biosynthesis is generally activated after UV exposure. Therefore, they have been assumed to protect plants against exposure to radiation in this range. Some flavonoids also absorb in other wavelengths, for example anthocyanins, which absorb light in the visible part of the solar spectrum. Besides, some flavonoids show antioxidant properties, that is, they act as scavengers of reactive oxygen species that could be produced after high fluence UV exposure. However, to date most reports were based on in vitro studies, and there is very little in vivo evidence of how their roles are carried out. In this review we first summarize the biosynthetic pathway of flavonoids and their characteristics, and we describe recent advances on the investigation of the role of three of the most abundant flavonoids: flavonols, flavones, and anthocyanins, protecting plants against UV exposure and high light exposure. We also present examples of how using UV-B supplementation to increase flavonoid content, is possible to improve plant nutritional and pharmaceutical values.

show abstract

Section: Flavonoids As Protective Compounds Against Light Exposurementioning

confidence: 99%

Recent advances on the roles of flavonoids as plant protective molecules after UV and high light exposure

Ferreyra

Serra

Casati

2021

Physiologia Plantarum

138

View full text Add to dashboard Cite

show abstract

“…Interestingly, UV-A can interact with UV-B to modulate plant responses. For instance, UV-A can mitigate the deleterious effects of UV-B on the photosynthetic apparatus under low PAR conditions ( Adamse et al, 1994 ), as demonstrated in barley ( Štroch et al, 2015 , cluster bean ( Cyamopsis tetragonoloba ) ( Joshi et al, 2007 , 2013 ) and the woody shrub Pimelea ligustrina ( Turnbull et al, 2013 ).…”

Section: Interactive Effects Of Uv-b and Abiotic Factors On Plant Gromentioning

confidence: 99%

Interactive Effects of UV-B Light with Abiotic Factors on Plant Growth and Chemistry, and Their Consequences for Defense against Arthropod Herbivores

2017

View full text Add to dashboard Cite

Ultraviolet-B (UV-B) light plays a crucial role in plant–herbivorous arthropods interactions by inducing changes in constitutive and inducible plant defenses. In particular, constitutive defenses can be modulated by UV-B-induced photomorphogenic responses and changes in the plant metabolome. In accordance, the prospective use of UV-B light as a tool to increase plant protection in agricultural practice has gained increasing interest. Changes in the environmental conditions might, however, modulate the UV-B -induced plant responses. While in some cases plant responses to UV-B can increase adaptation to changes in certain abiotic factors, UV-B-induced responses might be also antagonized by the changing environment. The outcome of these interactions might have a great influence on how plants interact with their enemies, e.g., herbivorous arthropods. Here, we provide a review on the interactive effects of UV-B and light quantity and quality, increased temperature and drought stress on plant biochemistry, and we discuss the implications of the outcome of these interactions for plant resistance to arthropod pests.

show abstract

“…In order to assess the alteration in balance between energy source and energy sink (photostasis of photosynthesis), the ratio of (total Chl)/P N was calculated (Joshi et al 2013a).…”

Section: Methodsmentioning

confidence: 99%

Diminution of photosynthesis in rice (Oryza sativa L.) seedlings under elevated CO<sub>2</sub> concentration and increased temperature

Panigrahi¹,

Pradhan²,

Panda³

et al. 2016

Photosynt.

View full text Add to dashboard Cite

The photosynthetic responses to elevated CO 2 concentration (EC) at ambient and ambient +4°C temperature were assessed in the second leaf of rice (Oryza sativa L.) seedlings. The duration of different leaf developmental phases, as characterised by changes in photosynthetic pigment contents and photochemical potential, was protracted in the seedlings grown under EC. On the other hand, a temporal shift in the phases of development with an early onset of senescence was observed in the seedlings grown under EC at ambient +4°C temperature. The contents of carotenoids, β-carotene, and xanthophyll cycle pigments revealed that EC downregulated the protective mechanism of photosynthetic apparatus against oxidative damages, whereas this mechanism assumed higher significance under EC at ambient +4°C temperature. We observed an enhancement in electron transport activity, photochemical potential, and net photosynthesis in spite of a loss in photostasis of photosynthesis under EC. On the other hand, the loss in photostasis of photosynthesis was exacerbated under EC at ambient +4°C temperature due to the decline in electron transport activity, photochemical potential, and net photosynthesis.

show abstract

Acclimation of clusterbean cotyledon to UV-B radiation in the presence of UV-A: partial restoration of photosynthetic energy balance and redox homeostasis

Cited by 10 publications

References 25 publications

Recent advances on the roles of flavonoids as plant protective molecules after UV and high light exposure

Recent advances on the roles of flavonoids as plant protective molecules after UV and high light exposure

Interactive Effects of UV-B Light with Abiotic Factors on Plant Growth and Chemistry, and Their Consequences for Defense against Arthropod Herbivores

Diminution of photosynthesis in rice (Oryza sativa L.) seedlings under elevated CO<sub>2</sub> concentration and increased temperature

Contact Info

Product

Resources

About