Biologia Plantarum

, Volume 17, Issue 5, pp 363–367 | Cite as

Influence of bacterial streak disease development on changes in phenolics, soluble amino acids and carbohydrates of rice leaves

  • P. Ranga Reddy
  • R. Sridhar


The healthy leaves of rice cultivar ‘BJ 1’ resistant to bacterial leaf streak pathogen (Xanthomonas translucens f. sp.oryzicola) contained higher quantities of total phenolic compounds, reducing and nonreducing sugars than the susceptible cultivar ’IR 8’, while the leaves of cultivar ’IR 8’ possessed larger concentration of total soluble amino acids than the resistant cultivar ’BJ 1’.

In the leaves of cultivar ‘BJ 1’, the disease development caused an initial decrease in the concentration of phenols followed by an increase at later stages. As a result of inoculation, soluble carbohydrates and amino acids generally decreased in the leaves of resistant cultivar ‘BJ 1’, in contrast to an increase in their concentration in the leaves of cultivar ‘IR 8’.


Phenolic Compound Rice Cultivar Resistant Cultivar Soluble Carbohydrate Total Soluble Sugar 
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Vliv vývoje bakteriální pruhovitosti na změny fenolů, rozpustných aminokyselin a glycidů v listech rýže


Zdravé listy rýže cv. ‘BJ 1’ odolné proti bakteriálnímu patogenu pruhovitosti (Xanthomonas translucens f. sp.orizicola) obsahovaly vyšší množství celkových fenolických sloučenin redukujících a neredukujících cukry než neodolný cv. ‘IR 8’, zatímco listy kultivaru ‘IR 8’ měly vyšší koncentraci celkových rozpustných aminokyselin než odolný cv. ‘BJ 1’.

V listech cv. ‘BJ 1’ působila infekee počáteční snížení koncentrace fenolů, po kterém v pozdějších stádiích následoval vzestup. Očkováním se v listech odolného ‘BJ 1’ obsah rozpustných glycidů a aminokyselin snížil a naopak v listech cv. ‘IR 8’ jejich koncentrace stoupla.


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Copyright information

© Institute of Experimental Botany 1975

Authors and Affiliations

  • P. Ranga Reddy
    • 1
  • R. Sridhar
    • 1
  1. 1.Division of Plant PathologyCentral Rice Research InstituteCuttack-6India

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