Enhancement of nodulation in bean (Phaseolus vulgaris) by UV-B irradiation

Pinto, Manuel; Edwards, Gerald E.; Riquelme, Alejandro; Ku, Maurice S. B.

doi:10.1071/fp02012

Cited by 17 publications

(11 citation statements)

References 15 publications

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“…Direct evidence of induction of NADP-malic enzyme by UV-B radiation was observed in leaves, stems and roots of three bean cultivars (Pinto et al, 2002). These results suggest that NADP-malic enzymes play an active role in plant defense responses against UV-B, possibly by providing NADPH for lignin and flavonoid biosynthesis.…”

Section: The Antioxidant Defense Systemmentioning

confidence: 62%

Advances in Crop Responses to Enhanced Uv-B Radiation

Li¹

2016

Appl Ecol Env Res

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The increased ultraviolet-B (UV-B) radiation (280-320 nm) on the Earth's surface is one of the most important concerns of global change. This concern is primarily because increased UV-B radiation has been unambiguously shown to be responsible for the majority of harmful effects on aquatic as well as terrestrial organisms, and thus influence ecological interactions. For the past 4 plus decades, many studies have been conducted on the damaging effects of elevated UV-B radiation on plants. These studies have shown a diverse range of responses to UV-B radiation, and might be in general arbitrarily divided into two classes, photomorphogenic and stress responses at the morphological, physiological, biochemical and molecular levels. Crop plants evolved different adaptive or defensive mechanisms to UV-B radiation, including accumulation of UV-absorbing sunscreens, production of enzymatic and non-enzymatic antioxidants, changes of phytohormones or activation of DNA-repairing enzymes. A diagram illustrating the general responses of UV-B radiation and complexity of the interactions among factors was developed. Three urgent specific researches are proposed, which might provide opportunities for genetic engineering and possibility of breeding to deal with potential crop yield reductions due to elevated UV-B in agricultural systems, and thus will play a major role in determining the crops future.

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Section: The Antioxidant Defense Systemmentioning

confidence: 62%

Advances in Crop Responses to Enhanced Uv-B Radiation

Li¹

2016

Appl Ecol Env Res

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“…Ambient UV-B affected the biomass partitioned to tubers and increased root diameter and root fresh weight of radish [30]. Pinto et al [13] found that bean plants grown in a greenhouse, where UV-B levels are low compared to outside levels had almost 60% more nodules per plant and 2.5-fold increases in nodulation compared to the plants grown outside. However, moderate and elevated UV-B exposure had no effect on the number of nodules, nodule mass and nodule size, although nitrogen concentration was markedly reduced in the roots of soybean and common bean [31].…”

Section: Discussionmentioning

confidence: 96%

“…Very little is known about the effects of ambient UV-B radiation on nitrogen metabolism. The number of nodules per plant in the bean grown in conditions of ambient UV radiation was higher than that on plants deprived of UV-B [13], and Chouhan et al [14] found that ambient UV-B reduced the number and size of nodules, total protein and Lb content in the soybean. However, Shiozaki et al [15] found that UV (300-400 nm) applied to leaves increased the amounts of nodulation and symbiotic N 2 fixation in pea plants.…”

Section: Introductionmentioning

confidence: 98%

Growth, photosynthesis and nitrogen metabolism in soybean varieties after exclusion of the UV-B and UV-A/B components of solar radiation

Baroniya¹,

Kataria

Pandey

et al. 2014

The Crop Journal

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A field experiment was conducted to study the impact of the exclusion of the solar UV components on growth, photosynthesis and nitrogen metabolism in soybean (Glycine max) varieties PK-472, Pusa-24, JS 71-05, JS-335, NRC-7 and Kalitur. The plants were grown in specially designed UV exclusion chambers wrapped with filters to exclude UV-B or UV-A/B and transmitted all UV. Exclusion of UV significantly enhanced the growth of the aerial parts as well as the growth of the below ground parts in all of the six soybean varieties.Nitrate reductase activity (NRA) was significantly reduced, whereas leghemoglobin (Lb) content, total soluble protein, net photosynthesis (P n ) and α-tocopherol content were enhanced after UV exclusion. The exclusion of solar UV-A/B enhanced all parameters to a larger extent than the exclusion of solar UV-B in four of the six varieties of soybean except for NRC-7 and Kalitur. These two varieties responded more to UV-B exclusion compared to UV-A/B exclusion. A significant inverse correlation between the NRA and the number of nodules per plant was observed. The extent of response in all parameters was greater in PK-472 and JS71-05 than that in Kalitur and JS-335 after UV exclusion. The exclusion of UV augmented the growth of nodules, Lb content and α-tocopherol levels and conferred higher rates of P n to support better growth of nodules. Control plants (+ UV-A/B) seemed to fulfill their N demand through the assimilation of NO 3 − resulting in lower symbiotic nitrogen fixation and higher NR activity.

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“…Interestingly, all of irradiated seeds had higher number of root nodules at 150-250% of waterlogging compared to the initial line. According to Pinto et al (2002), irradiation exposure increases root nodule formation by 60%.…”

Section: Morphology Of Irradiated Soybean Plants In Waterlogging Condmentioning

confidence: 99%

The Variation induction of Glycine max through low dose gamma irradiation produces genetic and physiological alteration as source of tolerant variants in waterlogging conditions

et al. 2019

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Abstract. Saputro TB, Muslihatin W, Wahyuni DK, Nurhidayati T, Wardhani FO, Rosalia E. 2019. Variation induction of Glycine max through low dose gamma irradiation produces genetic and physiological alteration as source of tolerant variants in waterlogging conditions. Biodiversitas 20: 3299-3308. Soybean (Glycine max L.) is the main food commodity that contains high proteins, oils, and carbohydrates. Waterlogging is considered as the dominant factor and major constraint responsible for the decrements of soybean production in Indonesia. The development of promising G.max that tolerates waterlogging is essentially needed. In this study, induction of variation was conducted by gamma rays irradiation with doses of 25Gy, 50Gy, 75Gy, and 100Gy. The mutant or variants lines were then selected under waterlogging conditions with 100%, 150%, 200%, and 250% of field capacity. The results showed that, in 250% waterlogging condition, plants irradiated with 25Gy shows the best performance in amount of roots, adventitious roots and number of pods parameters, while plants irradiated with 50Gy have the highest growth indicated by amount of root nodules, plant heights, dry weights, leaf area, and chlorophyll contents. The genotypes then were assayed by the Inter Simple Sequence Repeats (ISSR) to confirm that the mutants differ compared to its wild type. Out of 10 ISSR primers, seven primers showed polymorphic patterns. The best primer to differentiate the mutant lines and its wild type is primer ISSR1 [ (AC)8G] that able to generate the highest level of polymorphism with 44.0%. The comparison of protein profiles among the mutant lines showed that proteins with molecular weight 53,78 KDa; 43,12 KDa; and 20,62 Kda are all overexpressed for plants irradiated at 25Gy and treated with 250% waterlogging stress. All those three proteins are predicted as 1-amino cyclopropane-1-carboxylate synthase (ACS), Alcohol-dehydrogenase (ADH), and Superoxide dismutase (SOD) respectively.

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Enhancement of nodulation in bean (Phaseolus vulgaris) by UV-B irradiation

Cited by 17 publications

References 15 publications

Advances in Crop Responses to Enhanced Uv-B Radiation

Advances in Crop Responses to Enhanced Uv-B Radiation

Growth, photosynthesis and nitrogen metabolism in soybean varieties after exclusion of the UV-B and UV-A/B components of solar radiation

The Variation induction of Glycine max through low dose gamma irradiation produces genetic and physiological alteration as source of tolerant variants in waterlogging conditions

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