Growth enhancement of soybean (Glycine max) upon exclusion of UV-B and UV-B/A components of solar radiation: characterization of photosynthetic parameters in leaves

Guruprasad, K. N.; Bhattacharjee, S. K.; Kataria, Sunita; Yadav, Sanjeev Kumar; Tiwari, Arjun; Baroniya, Sanjay Singh; Rajiv, Abhinav; Mohanty, Prasanna

doi:10.1007/s11120-007-9282-x

Cited by 17 publications

(21 citation statements)

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“…The biochemical changes for adaptation to ambient UV-B can be studied by excluding the UV-B component from the natural solar radiation. Such exclusion studies done earlier on soybean have shown an enhancement in growth and biomass of the plants (Varalakshmi et al, 2003;Guruprasad et al, 2007). These growth changes were also accompanied by enhancement in the total soluble proteins.…”

Section: Introductionmentioning

confidence: 80%

Similarities in the biochemical changes between solar UV exclusion and GA application in Amaranthus caudatus

Sharma¹,

Guruprasad

2009

Physiol Mol Biol Plants

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Seedlings of Amaranthus caudatus grown under UV exclusion filters (-UV -B <320nm; -UV -B/A <400nm) in the ambient solar radiation showed an enhancement in growth. This was accompanied by reduction in the synthesis of betacyanin but enhancement in the level of amino acids and proteins. The growth promotion and the accompanying biochemical changes were similar to the external application of GA 3 to the seedlings under ambient solar radiation. The results are discussed in the light of similarities between UV exclusion and GA 3 application in terms of diversion of amino acid precursors towards enhanced primary metabolism.

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Section: Introductionmentioning

confidence: 80%

Similarities in the biochemical changes between solar UV exclusion and GA application in Amaranthus caudatus

Sharma¹,

Guruprasad

2009

Physiol Mol Biol Plants

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“…A wealth of research effort during the past decades has been directed towards quantifying the potential effects of UV-B fluxes on plant parameters (Madronich et al, 1995;Guruprasad et al, 2007). Numerous studies have investigated the effects of elevated UV-B on plants, and have shown a diverse range of responses, including changes at the physiological, morphological, biochemical and molecular levels (Carletti et al, 2003;Paul and GwynnJones, 2003;Guruprasad et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Intraspecific variation in sensitivity to ambient ultraviolet-B radiation in growth and yield characteristics of eight soybean cultivars grown under field conditions

Baroniya¹,

Kataria²,

Pandey³

et al. 2011

Braz. J. Plant Physiol.

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The present study was conducted with eight cultivars of soybean (Glycine max) to determine the effect of exclusion of solar UV-B on the vegetative growth (plant height, leaf area, no. of nodes), UV absorbing compounds (implicated in UV protection) and crop yield (No. of pods and seed weight) and to determine the cultivar difference in their sensitivity to ambient UV-B. Exclusion of solar UV-B enhanced the vegetative growth and yield of all the soybean cultivars. The results showed a significant inverse association between the enhancement in vegetative growth and number of pods among the cultivars tested, indicating differences in the carbon partitioning amongst the cultivars by the way of exclusion of solar UV-B. NRC-7, Pusa-24 and JS-335 showed maximum promotion in vegetative growth and less enhancement in crop yield after solar UV-B exclusion. Kalitur, JS71-05, Hardee, PK-472 and PK-1029 showed improved performance both in terms of number of pods/plant and seed weight after solar UV-B exclusion. An enhancement in the crop yield by exclusion of solar UV-B indicated poor response of the cultivar to the ambient solar UV-B; these cultivars would be more suitable at latitudes, which received less UV-B. According to UV-SI, sensitivity of eight Indian soybean cultivars to ambient level of UV-B (280-320 nm) radiation had the following descending order; PK-472 > JS-335 > Hardee > Kalitur > JS71-05 > Pusa-24 > NRC-7 > PK-1029. These findings suggest the way to select the best-suited cultivar for particular latitude.

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“…Coleman and Day (2004) have reported that individual leaves as well as total plant leaf area become smaller in cotton plants as the UV-B dose approaches ambient levels compared to sub-optimal levels. Response of cotton plants to UV exclusion is similar to that of mungbean, pea, soybean, barley and Cyamopsis (Pal et al 1997(Pal et al , 2006Mazza et al 1999;Varalakshmi et al 2003;Amudha et al 2005;Guruprasad et al 2007) in terms of enhanced plant height, leaf area and biomass. Exclusion of solar UV reduced the synthesis of UV absorbing substances in the leaves (Table 3).…”

Section: Discussionmentioning

confidence: 71%

“…The cages were wrapped with UV-B, and UV-B/A cutoff filters (Garware Polyester Ltd., Mumbai) that specifically eliminate UV-B (<300 nm) and UV-B/A (<400 nm) radiation and the control plants were grown under an ordinary polythene filter permissible to UV (280-400 nm) radiation. The transmission of the filters were measured by Shimadzu (UV-1601) as described in Guruprasad et al 2007. The transmission characteristics of filters did not change during the experimental period and these filters did not emit fluorescence in visible regions.…”

Section: Plant Materials and Experiments Designmentioning

confidence: 99%

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Assessment of impact of solar UV components on growth and antioxidant enzyme activity in cotton plant

Dehariya

Kataria

Pandey

et al. 2011

Physiol Mol Biol Plants

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A field experiment was conducted to study the impact of solar UV-B (280-315 nm) and UV-A (315-400 nm) components on the growth and antioxidant enzyme activity in cotton plant (Gossypium hirsutum var. Vikram). Solar UV components were excluded by filtering the sunlight through selective UV-B (<315 nm) and UV-B/A (<400 nm) absorbing polyester films. Plants grown under filters that transmitted solar UV served as controls. Exclusion of UV-B and UV-B/A enhanced plant height, leaf area and total biomass of plants. The activity of antioxidant enzymes superoxide dismutase (SOD), ascorbic acid peroxidase (APX), glutathione reductase (GR) and guaiacol peroxidase (GPx) assayed in the leaves were lesser in the UV excluded plants. The level of ascorbic acid and UV absorbing substances were also decreased by the exclusion of UV. Solar UV components exerted a limitation on the potential growth of cotton plants. Reduction in the antioxidant enzyme activity and ascorbic acid after UV exclusion indicated that ambient UV components exert a significant stress on cotton plants. Reduction in the production of UAS indicated a changed pattern of metabolism leading to improved primary metabolism. Exclusion of UV components is advantageous from the agricultural point to enhance the growth of cotton plants.

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Growth enhancement of soybean (Glycine max) upon exclusion of UV-B and UV-B/A components of solar radiation: characterization of photosynthetic parameters in leaves

Cited by 17 publications

References 0 publications

Similarities in the biochemical changes between solar UV exclusion and GA application in Amaranthus caudatus

Similarities in the biochemical changes between solar UV exclusion and GA application in Amaranthus caudatus

Intraspecific variation in sensitivity to ambient ultraviolet-B radiation in growth and yield characteristics of eight soybean cultivars grown under field conditions

Assessment of impact of solar UV components on growth and antioxidant enzyme activity in cotton plant

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