Parinthawong, Nonglak

Loading...
Thumbnail Image
Preferred name
Parinthawong, Nonglak
Alternative Name
Parinthawong, N.
Main Affiliation
Email
nonglak.pa@kmitl.ac.th

Settings

Now showing 1 - 2 of 2
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Morphological and Molecular Identification of Pythium spp. from Hydroponically-Grown Lettuce
    (2022-01-01)
    Talubnak, Chulalak
    ;
    Schoonbeek, Henk Jan
    ;
    Parinthawong, Nonglak
    ;
    Jaenaksorn, Tanimnun
    Herein, hydroponic Pythium communities in Thailand were investigated. The 38 Pythium isolates from asymptomatic and symptomatic lettuce roots were identified using morphological and molecular features. The data indicated that P. aphanidermatum and P. myriotylum were the predominant species. Regarding the rDNA-ITS study, all isolates were identified as P. aphanidermatum, P. myriotylum, P. deliense, or an unidentified Pythium species. The reconfirmation of the three unidentified Pythium isolates using the cytochrome oxidase subunit I (COI) gene in comparison to the representative isolates was achieved using P. aphanidermatum and P. myriotylum. The COI phylogenetic trees were similar to that of the ITS tree. Additionally, pathogenicity of the Pythium representative isolates to plant seeds was evaluated in a laboratory assay. The seedlings suffered serious symptoms from P. myriotylum SR31 infection, with 90-100% disease severity. The other isolates presented disease severity of less than 20% when compared with uninoculated control. This study provides a comprehensive identification of Pythium root rot in lettuce grown on hydroponics in Thailand and provides information on beneficial microorganisms and a resistance inducer in lettuce root rot.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Investigation of blast resistance genes in a broad-spectrum resistant indigenous rice, Yang Mawng variety
    (2020-01-01)
    Suksiri, W.
    ;
    Parinthawong, N.
    The indigenous rice Yang Mawng variety was highly resistant to 24 isolates and moderate resistant to 3 isolates of P. oryzae. The results confirmed the broad-spectrum resistance to blast disease of Yang Mawng variety. The pathogenicity test of 27 isolates of P. oryzae was conducted on 31 Near Isogenic Lines (NILs). The result showed that virulence index (VI) was valued from 0 to 0.50 and the most pathogenic isolate on NILs was UBN2010 13515. The investigation for 8 rice blast disease resistance genes of Yang Mawng variety was done using blast resistance gene specific primers and PCR technique. The result showed that 5 blast resistance genes including Pi9, Pigm(t), Pi54, Pib and Pita, were detectable. The information of this research is a preliminary data for study of resistance genes present in Yang Mawng variety.