Mycobiology.  2004 Dec;32(4):155-159.

Effect of the Mixture of Two Plant Alkaloids Isolated from Corydalis longipes Against Balsam Powdery Mildew on Detached Leaves and Pea Powdery Mildew in Field

• Gohain L
• Maurya S
• Pandey MB
• Pandey VB
• Singh UP

Abstract

N-Methylhydrasteine hydroxylactam and 1-methoxyberberine chloride, both alkaloids, extracted from Corydalis longipes have been assayed for their activities against two powdery mildews. The spore germination of Erysiphe cichoracearum on detached leaf of balsam(Impatiens balsaminia) following pre- and post-inoculation treatments by their mixture has shown high efficacy against the pathogen at 100, 200 and 300 microg/ml. The mixture was also effective at both pre- and post-inoculation treatments at 500, 1000, 1500 microg/ml doses against E. pisi causing pea powdery mildew in pea(Pisum sativum) under field conditions. The significant efficacy of the mixture of two compounds against spore germination on detached leaves of balsam and also under field conditions in pea warrants its inclusion in trials against some other diseases under field conditions.

Keyword

Corydalis longipes; Erysiphe cichoracearum; Erysiphe pisi; 1-Methoxyberberine chloride; N-Methylhydrasteine hydroxylactam; Spore germination

MeSH Terms

Alkaloids*
Corydalis*
Germination
Peas*
Plants*
Spores
Alkaloids