First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia

Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque was successfully isolated from soil of potato fields in Ngablak, Magelang. This research aimed to obtain the knowledge of P. vexans potency as a pathogen in potatoes, and also morphologically and molecularly identify ...

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Main Authors: Islaminati Anna Santika, Ani Widiastuti, Arif Wibowo
Format: Article
Language:English
Published: Universitas Gadjah Mada 2021-12-01
Series:Jurnal Perlindungan Tanaman Indonesia
Subjects:
Online Access:https://jurnal.ugm.ac.id/jpti/article/view/67556
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author Islaminati Anna Santika
Ani Widiastuti
Arif Wibowo
author_facet Islaminati Anna Santika
Ani Widiastuti
Arif Wibowo
author_sort Islaminati Anna Santika
collection DOAJ
description Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque was successfully isolated from soil of potato fields in Ngablak, Magelang. This research aimed to obtain the knowledge of P. vexans potency as a pathogen in potatoes, and also morphologically and molecularly identify P. vexans compared to the Oomycetes, Phytophthora and Pythium. Morphological identification was conducted by observing macroscopic colony pattern that grew on PDA medium for five days and microscopic observation on its hyphae, sporangia, papillate, and chlamydospore. Molecular identification was conducted using multigene analysis, ITS and LSU. The in vitro pathogenicity test was obtained by inoculating P. vexans inoculum to healthy potato leaves and tubers. Results of morphological observation showed that P. vexans had a stellate pattern, aseptate hyphae, ovoid shaped sporangium and completed with semipapillate. Chlamydospores were also found and often used for survival. This research revealed that the morphology characters of P. vexans were combination between the characteristics of Pythium and Phytophthora. Whereas, based on the molecular analysis using ITS and LSU, Phytopythium spp. was more closely related to Phytophthora spp. rather than Pythium spp. The pathogenicity test of P. vexans showed that it could infect the flesh of potato tubers by showing a brown lesions symptom
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spelling doaj.art-f3293be0dd5049fdada46ee0a0cd2b1c2022-12-21T23:46:33ZengUniversitas Gadjah MadaJurnal Perlindungan Tanaman Indonesia1410-16372548-47882021-12-0125210.22146/jpti.6755630976First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in IndonesiaIslaminati Anna Santika0Ani Widiastuti1Arif Wibowo2Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada, Jln. Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55581 IndonesiaDepartment of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada, Jln. Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55581 IndonesiaDepartment of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada, Jln. Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55581 IndonesiaPhytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque was successfully isolated from soil of potato fields in Ngablak, Magelang. This research aimed to obtain the knowledge of P. vexans potency as a pathogen in potatoes, and also morphologically and molecularly identify P. vexans compared to the Oomycetes, Phytophthora and Pythium. Morphological identification was conducted by observing macroscopic colony pattern that grew on PDA medium for five days and microscopic observation on its hyphae, sporangia, papillate, and chlamydospore. Molecular identification was conducted using multigene analysis, ITS and LSU. The in vitro pathogenicity test was obtained by inoculating P. vexans inoculum to healthy potato leaves and tubers. Results of morphological observation showed that P. vexans had a stellate pattern, aseptate hyphae, ovoid shaped sporangium and completed with semipapillate. Chlamydospores were also found and often used for survival. This research revealed that the morphology characters of P. vexans were combination between the characteristics of Pythium and Phytophthora. Whereas, based on the molecular analysis using ITS and LSU, Phytopythium spp. was more closely related to Phytophthora spp. rather than Pythium spp. The pathogenicity test of P. vexans showed that it could infect the flesh of potato tubers by showing a brown lesions symptomhttps://jurnal.ugm.ac.id/jpti/article/view/67556itslsuoomycetespotatophytopythium
spellingShingle Islaminati Anna Santika
Ani Widiastuti
Arif Wibowo
First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia
Jurnal Perlindungan Tanaman Indonesia
its
lsu
oomycetes
potato
phytopythium
title First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia
title_full First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia
title_fullStr First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia
title_full_unstemmed First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia
title_short First Report of Phytopythium vexans (de Barry) Abad, de Cock, Bala, Robideau, Lodhi & Lévesque Causing Potato Tuber Rot in Indonesia
title_sort first report of phytopythium vexans de barry abad de cock bala robideau lodhi levesque causing potato tuber rot in indonesia
topic its
lsu
oomycetes
potato
phytopythium
url https://jurnal.ugm.ac.id/jpti/article/view/67556
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