Changes in Seed Contents of Paddy (Oryza sativa L.) due to Fungal Flora

Bilgrami, K. S.; Sinha, Jamaluddin R. K.; Prasad, T.

doi:10.1111/j.1439-0434.1979.tb01614.x

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Under fi eld conditions, the crop is damaged by fungal pathogen or by frequent infestaton of mites and other insects. There are many reports on the biodeterioration of the nutritive content of cereals [11], pulses [12], oil seeds and vegetables and fruits [13] due to diseases. However in medicinal plants such reports are scanty and so far, no study on microbial deterioration of the biochemical and secondary metabolites of W. somnifera has been reported.…”

Section: Introductionmentioning

confidence: 99%

Studies on leaf spot disease of Withania somnifera and its impact on secondary metabolites

et al. 2008

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During an investigation of the disease profi le of Withania somnifera, it was observed that leaf spot is the most prevalent disease. Repeated isolations from infected leaf tissues and pathogenicity tests showed the association of fungal pathogen identifi ed as Alternaria alternata (Fr.) Keissler. Scanning electron microscopy showed various histological changes in the leaf tissues of infected plants. A decrease in total content of reducing sugars (20%) and chlorophyll (26.5%) was observed in diseased leaves whereas an increase was noticed in proline (25%), free amino acids (3%) and proteins (74.3%). High performance thin layer chromatography (HPTLC) analysis of secondary metabolites viz. withanolides, withaferin-A and total alkaloids of the diseased leaves vis-à-vis control revealed reduction in withaferin-A and withanolides contents by 15.4% and 76.3% respectively, in contrast to an increase in total alkaloids by 49.3%, information hitherto unreported in W. somnifera.

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Section: Introductionmentioning

confidence: 99%

Studies on leaf spot disease of Withania somnifera and its impact on secondary metabolites

et al. 2008

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“…Pronounced changes in the contents of sugars and starch take place due to fungal infestation in rice grains. Seed protein also showed a marked decrease during the storage of infected rice grains (Bilgrami et al 1979). Sheath rot disease considerably reduced the total sugar content in all the six varieties tested (Vidyasekaran et al 1984;Reddy et al 2000).…”

Section: Introductionmentioning

confidence: 96%

Effect of Seed-Borne Sarocladium Oryzae, the Incitant of Rice Sheath Rot on Rice Seed Quality

Gopalakrishnan

Kamalakannan²,

Valluvaparidasan³

2010

Journal of Plant Protection Research

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Effect of Seed-BorneSarocladium Oryzae, the Incitant of Rice Sheath Rot on Rice Seed QualityRice seeds collected fromSarocladium oryzaeinoculated plants produced more discoloured grain, chaffiness and recorded much lower seed germination than seeds collected from healthy plants in all the three cultivars tested. The germination, chaffiness and discolouration in healthy plants were found to be in the range of 70.50 to 93.50 per cent, 5.5 to 17.75 per cent and 4 to 18 per cent respectively. There was a progressive and significant reduction in total sugar, reducing sugar and non reducing sugar content of rice seeds with varying degree of seed infection caused byS. oryzaeThe increase in phenol content due toS. oryzaeinfection ranged from 15.74 to 70.78 per cent and increase being proportional to the per centS. oryzaeseed infection.

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Grain discoloration and its management: an emerging threat to paddy cultivation

Chhabra

Vij

2019

J Plant Dis Prot

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Changes in Seed Contents of Paddy (Oryza sativa L.) due to Fungal Flora

Cited by 4 publications

References 5 publications

Studies on leaf spot disease of Withania somnifera and its impact on secondary metabolites

Studies on leaf spot disease of Withania somnifera and its impact on secondary metabolites

Effect of Seed-Borne Sarocladium Oryzae, the Incitant of Rice Sheath Rot on Rice Seed Quality

Grain discoloration and its management: an emerging threat to paddy cultivation

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