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Journal of Medicinal Plants Studies
  • Printed Journal
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ISSN Print: 2394-0530, ISSN Online: 2320-3862, NAAS Rating: 3.53

NAAS Rating: 3.53 NEW

Journal of Medicinal Plants Studies

2017, Vol. 5, Issue 5, Part A
Standardized rosemary extract induces host plant defenses and suppresses rice leaf blast

Mythali Lima Garcia, Nayara Luiza Oliveira Ferreira, Rejanne Lima Arruda, Marta Cristina Corsi De Filippi and Edemilson Cardoso Da Conceição

The efficiency of rosemary (Rosmarinus officinalis L.) liquid extract (RLE), standardized as rosmarinic acid (RA) on the suppression of rice (Oryza sativa) leaf blast (Magnaporthe oryzae) (LB) were determinate. RLE (3.3, 6.6, and 10 mg·mL−1), SRA (3.1, 4.2, and 6.3 mg·mL−1), and water (control) were sprayed on leaves of Primavera rice cultivar, at 48 hours before inoculation with M. oryzae (MO). The activities of chitinase, β-1, 3-glucanase, peroxidase, lipoxygenase, phenylalanine ammonia-lyase, and phenolic compounds and of salicylic acid levels were determined in samples collected before and after inoculation with MO. The highest concentrations of RLE and RA reduced the LB severity by more than 92%. Except for Peroxidase, all enzymes increased their activity after spraying RLE and RA, prior and after the challenge inoculation. Our results suggest that RLE standardized as RA can induce the activity of enzymes related to plant defense.
Pages : 39-45 | 853 Views | 36 Downloads
How to cite this article:
Mythali Lima Garcia, Nayara Luiza Oliveira Ferreira, Rejanne Lima Arruda, Marta Cristina Corsi De Filippi, Edemilson Cardoso Da Conceição. Standardized rosemary extract induces host plant defenses and suppresses rice leaf blast. J Med Plants Stud 2017;5(5):39-45.
Journal of Medicinal Plants Studies
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