Analysis of internal transcribed spacer (ITS) region of<i>Phytophthora tropicalis</i>causing quick wilt disease of black pepper in Vietnam

Dung, Pham Ngoc; Cuong, Ha Viet; Tuat, Nguyen Van; Matsumoto, Masaru

doi:10.1080/03235408.2013.823713

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…Base on this species, some researchers have concluded that these two names were being applied to a single species, the name of P. nicotianae earlier than P. parasitica. Often, Phytophthora are most closely related to an isolate origin from different island/country based on ITS, such as Phytophthora causing quick wilt of black peppers in Vietnam and Taiwan (Dung et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

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2018

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Virtual Money emerge as payment instruments in recent years. Based on the report of the Indonesian NRA Team in 2015, virtual currecy such as Bitcoin consider as Tindak Pidana Pencucian Uang (TPPU) emerging threat because the use of Bitcoin in Indonesia has been developed as an alternative payment of property transactions, luxury vehicles, beverage and accommodation. The aim of this study is to analyze the potential use of virtual currency in money laundering and financing terrorism in Indonesia. The absence of regulatory and oversight authorities, the use of vulnerable virtual currency is used for illegal transactions, money laundering and terrorism financing. The conditions of such transactions can open up opportunities for fraud and crime in various forms that can harm society. In addition to the virtual currency that has a vagueness underlying asset for its value, speculative virtual currency transactions can pose a risk of bubble that not only harms the public but also potentially disrupts the stability of the financial system.

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Section: Resultsmentioning

confidence: 99%

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2018

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“…infection was not signi cant (Truong et al 2008). Dung et al (2014) revealed that the black pepper foot rot in Dak Nong province of Vietnam was caused by P. tropicalis instead of P. capsici based on ITS sequence analysis. Phytopythium vexans was also reported as a causal agent of black pepper root rot in Vietnam, however, the identi cation of this species was not con rmed (Nguyet et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Current species of oomycetes associated with foot rot disease of black pepper in Vietnam

Thao,

Khanh,

Liem

et al. 2023

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Foot rot disease caused by Phytophthora capsici is one of the most destructive diseases of black pepper in Vietnam and worldwide. However, many other oomycete species have also been recorded on this plant, and P. tropicalis and Pythium deliense were recently reported as serious threats to black pepper in India. On the other hand, the population of oomycetes occurring in black pepper plantations in Vietnam and their pathogenicity have not been investigated in the last decade. To this end, two hundred fifteen oomycete isolates were collected from the root rots and rhizospheric soil of black pepper in the Central Highlands andthe Southeast region of Vietnam. Of these, 23 isolates were representatively chosen based on their origin and morphology for DNA sequence analysis of the internal transcribed spacer (ITS) region, then 11 isolates were further selected for the translation elongation factor 1-alpha (TEF1- α) and the beta-tubulin (TUB) gene analyses. Morphology and molecular analysesindicated that P. capsici, P. tropicalis, P. nicotianae, P. cinnamomi, P. parvispora, P. heveae, Phytopythium vexans, and a novel species of Phytopythium were clearly identified among oomycete isolates. Of these, P. capsiciand P. tropicalis could be the prevalent species in black pepper plantations in studied areas. The inoculation tests demonstrated that all the isolates of P. capsici, P. tropicalis and P. nicotianae were pathogenic on both leaves and roots of black pepper. Phytopythium vexans was pathogenic on root only. Meanwhile, P. cinnamomi, P. parvispora, P. heveae and Phytopythiumsp. were non-pathogenic.

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