Effects of Sulphur Dioxide on Sugar and Free Amino Acid Content of Pine Seedlings

Malhotra, S. S.; Sarkar, S. K.

doi:10.1111/j.1399-3054.1979.tb06517.x

Cited by 102 publications

(32 citation statements)

References 17 publications

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“…Accumulation of reducing sugar and depletion of starch were reported in Mangifera indica and Psidium guajava growing under pollution stress (Kumar & Singh 1988). Increase in reducing sugars and decrease in non-reducing sugars oc-curred in pine seedlings as a result of SO 2 pollution (Malhotra & Sarkar 1979). Sugar level in the roots of pollution-affected P. bicalyculata was low, marginally at the pre-flowering stage and significantly during the later stages.…”

Section: Discussionmentioning

confidence: 94%

“…Several studies have reported degradation of membrane lipids with possible hydrolysis of proteins inducing quantitative changes in amino acid composition and an increase in reducing sugars prior to the appearance of visible symptoms (Malhotra & Sarkar 1979). Variations due to environmental stress in the biochemistry of plant tissues are little explored in relation to the growing age of the plant.…”

Section: Introductionmentioning

confidence: 99%

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Coal-smoke pollution modifies physio-chemical characteristics of tissues during the ontogeny of Peristrophe bicalyculata

2008

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Coal-smoke emissions of a thermal power plant affected the physio-chemical status of Peristrophe bicalyculata (Reth) Nees, as observed at the pre-flowering, flowering and post-flowering stages of plant growth. The nitrate level was raised while nitrate reductase activity, and the soluble protein content of leaf declined heavily at the polluted site during different stages of plant growth, compared to the control. The rate of photosynthesis also decreased under the pollution stress. Sugar level in root, stem and leaves increased with growing age of the plant but was always lower at the polluted site than at the reference site. In roots, the difference was marginal till flowering stage and quite conspicuous afterwards; stems showed a reverse pattern of variation. Sulphur content was higher at the polluted site in all the organs and at each stage of the plant life. The Zn and Fe concentrations were reduced in all plant parts under the pollution stress. Copper content in root was consistently low at the polluted site. In the stem and leaves, however, it was almost equal on both the sites at the pre-flowering stage but showed a wide difference during the later part of plant ontogeny.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Coal-smoke pollution modifies physio-chemical characteristics of tissues during the ontogeny of Peristrophe bicalyculata

2008

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“…Method of 5,6,7 were used for estimation of total soluble sugar, reducing sugar and non-reducing sugar . The total soluble protein was estimated using Lowery et al, 1951 8 .…”

Section: Methodsmentioning

confidence: 99%

Proximate Bio-Chemical and Nutritive Composition in Local Genotypes of Prunus Triflora of Manipur, India

Khomdram¹,

Arambam²,

Devi³

2016

Int. Res. J. Pharm.

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The North-East state Manipur, India is a powerhouse of many wild flora and fauna. Varied ranges of wild edible Prunus triflora genotypes commonly known as plum are found in valley and hill districts of the region. Each fruit has distinctive physiological habitat and geographical characteristic. However, to the best of our knowledge no biochemical evaluation has been carried out of these fruits from this region. Four populations of wild Prunus triflora genotypes (Imphal kalenheikha, Senapati maoheikha, Ukhrul applemix, Ukhrul mangomix) were selected as source for study to estimate bio-chemical contents using standard protocols. The selected site differed in respect to their altitudes ranging from 750 -2740 m above msl. Proximate analysis revealed that the Prunus triflora genotype of Senapati maoheikha have highest amount of total soluble sugar, reducing sugar, total soluble protein and antioxidant activity of 34.67 ± 0.65 mg/ 100g, 23.65±2.22 mg/100g, 5.66±0.23 mg/100g, IC50666.3 ± 26µg/ml, respectively. While the genotype of Ukhrul applemix showed high value of 16.51± 5.9 mg/100g non-reducing sugar. Ascorbic acid content was highest in Imphal kalenheikha having 13.19±0.9 mg/100g of fresh weight among the genotypes. Significant correlationship was achieved between ascorbic acid and antioxidant activity in all the genotypes. Our study showed that wild Prunus triflora is a potential source of nutrition and a food containing healthgiving additives like functional food. Therefore, popularizing and bringing into mainstream cultivation of these fruit need initiation.

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“…Gly and Ser, both related to glycerate-3-phosphate, stand in direct relation to each other. Malhotra & Sarkar (1979) reported conversion of Ser to Gly after SOj fumigation. In our investigations however Gly and Ser did not show any clear fluctuations.…”

Section: Tke Variation Of Amino Acids Due To Different Mtrogen Pollutionmentioning

confidence: 99%

Contents of free amino acids in Scots pine needles from field sites with different levels of nitrogen deposition

Huhn

Schulz

1996

New Phytologist

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SUMMARYThe response of pine stands in areas with three different levels of nitrogen deposition was analysed on samples of the current year's needles. Each test area vYas subdivided into^ five test sites. Clear changes in the amounts of amino acids in relation to the nitrogen content of pine needles were found. Analyses were mainly focused on the amino acids glutamate (Glu), glutamine (Glo) and those forming the urea eycle. The concentration of Gin increased significantly with response to increasing needle nitrogen content. Arginine (Arg) accumulated dramatically (up to 100-fold) at high levels of needle nitrogen, but had the highest variation within the test sites. Ornithine (Orn) showed an increase only if the needle nitrogen content was very high. No clear relationship found in the case of Glu. Glutamine and Arg are useful bioindicators of nitrogen pollution in pine stands.

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Effects of Sulphur Dioxide on Sugar and Free Amino Acid Content of Pine Seedlings

Cited by 102 publications

References 17 publications

Coal-smoke pollution modifies physio-chemical characteristics of tissues during the ontogeny of Peristrophe bicalyculata

Coal-smoke pollution modifies physio-chemical characteristics of tissues during the ontogeny of Peristrophe bicalyculata

Proximate Bio-Chemical and Nutritive Composition in Local Genotypes of Prunus Triflora of Manipur, India

Contents of free amino acids in Scots pine needles from field sites with different levels of nitrogen deposition

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