Elimination of shallot bulb viruses through heat treatment

Shallot (Allium cepa L. Aggregatum group) is usually cultivated vegetatively. As a result, viruses tend to accumulate within the host plants and spread to healthy plants every crop cycle, reducing yield and bulb quality. There are a very limited number of studies about the elimination of shallot vir...

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Main Authors: Margo Sulistio, Endang Sulistyaningsih, Siti Subandiyah
Format: Article
Language:English
Published: Universitas Gadjah Mada, Yogyakarta 2015-12-01
Series:Indonesian Journal of Biotechnology
Subjects:
Online Access:https://jurnal.ugm.ac.id/ijbiotech/article/view/24196
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author Margo Sulistio
Endang Sulistyaningsih
Siti Subandiyah
author_facet Margo Sulistio
Endang Sulistyaningsih
Siti Subandiyah
author_sort Margo Sulistio
collection DOAJ
description Shallot (Allium cepa L. Aggregatum group) is usually cultivated vegetatively. As a result, viruses tend to accumulate within the host plants and spread to healthy plants every crop cycle, reducing yield and bulb quality. There are a very limited number of studies about the elimination of shallot viruses through heat treatment. The objective of this research was to eliminate shallot viruses through heat treatment to produce virus-free plantlets. The leaves of Biru Lancor with specifc visual virus symptoms were detected by Reverse Transcription–Polymerase Chain Reaction (RT-PCR). Then bulbs of Biru Lancor that were positively infected by viruses were used as materials for heat treatment. The treatments were a control (without treatment), electric treatment at 15 mA for 10 minutes, heat treatment in an incubator at 37°C for 4 weeks, heat treatment in a waterbath at 45°C for 60 minutes, and combination of heat treatment in an incubator at 37°C for 4 weeks and heat treatment in a waterbath at 45°C for 60 minutes. After being subjected to heat treatment, the pseudo stem were cultivated in the MS Medium + 1 mg/L BAP + 1 mg/L IBA.Virus detection by RT-PCR was conducted 28 days after planting using samples of leaves from each plantlet. The results of this research showed that the treatments of electric treatment at 15 mA for 10 minutes and combination of heat treatment in the incubator at 37°C for 4 weeks and heat treatment in the waterbath at 45°C for 60 minutes could suppress the incidence of Shallot latent virus (SLV) until 100%. Heat treatment might have an important role in the degradation of virus particles by boosting Virus-Induced Gene Silencing (VIGS) as plant responses to virus infection.
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spelling doaj.art-d17dabf14a414f0f9b0dd50ed480a55e2022-12-22T01:27:28ZengUniversitas Gadjah Mada, YogyakartaIndonesian Journal of Biotechnology0853-86542089-22412015-12-0120213314010.22146/ijbiotech.2419616165Elimination of shallot bulb viruses through heat treatmentMargo Sulistio0Endang Sulistyaningsih1Siti Subandiyah2Department of Biotechnology, Graduate School, Universitas Gadjah Mada, Yogyakarta, IndonesiaFaculty of Agriculture, Universitas Gadjah Mada, Yogyakarta, IndonesiaFaculty of Agriculture, Universitas Gadjah Mada, Yogyakarta, Indonesia Research Center for Biotechnology, Universitas Gadjah Mada, Yogyakarta, IndonesiaShallot (Allium cepa L. Aggregatum group) is usually cultivated vegetatively. As a result, viruses tend to accumulate within the host plants and spread to healthy plants every crop cycle, reducing yield and bulb quality. There are a very limited number of studies about the elimination of shallot viruses through heat treatment. The objective of this research was to eliminate shallot viruses through heat treatment to produce virus-free plantlets. The leaves of Biru Lancor with specifc visual virus symptoms were detected by Reverse Transcription–Polymerase Chain Reaction (RT-PCR). Then bulbs of Biru Lancor that were positively infected by viruses were used as materials for heat treatment. The treatments were a control (without treatment), electric treatment at 15 mA for 10 minutes, heat treatment in an incubator at 37°C for 4 weeks, heat treatment in a waterbath at 45°C for 60 minutes, and combination of heat treatment in an incubator at 37°C for 4 weeks and heat treatment in a waterbath at 45°C for 60 minutes. After being subjected to heat treatment, the pseudo stem were cultivated in the MS Medium + 1 mg/L BAP + 1 mg/L IBA.Virus detection by RT-PCR was conducted 28 days after planting using samples of leaves from each plantlet. The results of this research showed that the treatments of electric treatment at 15 mA for 10 minutes and combination of heat treatment in the incubator at 37°C for 4 weeks and heat treatment in the waterbath at 45°C for 60 minutes could suppress the incidence of Shallot latent virus (SLV) until 100%. Heat treatment might have an important role in the degradation of virus particles by boosting Virus-Induced Gene Silencing (VIGS) as plant responses to virus infection.https://jurnal.ugm.ac.id/ijbiotech/article/view/24196ShallotShallot latent virusheat treatment
spellingShingle Margo Sulistio
Endang Sulistyaningsih
Siti Subandiyah
Elimination of shallot bulb viruses through heat treatment
Indonesian Journal of Biotechnology
Shallot
Shallot latent virus
heat treatment
title Elimination of shallot bulb viruses through heat treatment
title_full Elimination of shallot bulb viruses through heat treatment
title_fullStr Elimination of shallot bulb viruses through heat treatment
title_full_unstemmed Elimination of shallot bulb viruses through heat treatment
title_short Elimination of shallot bulb viruses through heat treatment
title_sort elimination of shallot bulb viruses through heat treatment
topic Shallot
Shallot latent virus
heat treatment
url https://jurnal.ugm.ac.id/ijbiotech/article/view/24196
work_keys_str_mv AT margosulistio eliminationofshallotbulbvirusesthroughheattreatment
AT endangsulistyaningsih eliminationofshallotbulbvirusesthroughheattreatment
AT sitisubandiyah eliminationofshallotbulbvirusesthroughheattreatment