Necrotic spot disease of cineraria caused by Impatiens necrotic spot virus.

Tanina, K.; Inoue, K.; Date, H.; Okuda, Mitsuru; Hanada, Kaoru; Nasu, H.; Kasuyama, S.

doi:10.3186/jjphytopath.67.42

Cited by 13 publications

(6 citation statements)

References 3 publications

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“…Clade a contained four NG haplotypes (A-D) from greenhouse Han1, an isolate from Nagano Prefecture (Nagano-1) and ancestral isolates from the United States and the Netherlands collected in the early 1990s Law et al 1991); moreover, the NG haplotype C was identical to Nagano-1. Two NG haplotypes (I and J) from greenhouses Han1 and Ich formed a cluster with those from the first epidemic in Japan (i.e., Akita, Okayama, and Nagano Prefectures) during 1999-2001 (Fuji and Yamamoto 2000;Tanina et al 2001) in subclade b4; thus, these isolates seemed to form a group with a wider distribution among ornamental markets in Japan. The remaining four NG haplotypes (E-H) were derived from a common putative ancestor with those more recently epidemic in Ibaraki and Iwate Prefectures (Kitakami city) in -2004(Nekoduka et al 2005Sakurai et al 2004).…”

Section: Discussionmentioning

confidence: 94%

“…Since then, INSV has been detected in many countries worldwide, including the UK, Austria, and China (Crosslin and Hamlin 2010;Ding et al 2011;GrausgruberGröger 2012;Yin et al 2011;Zhang et al 2010). In Japan, this viral infection was first recorded in Shizuoka Prefecture, which is centrally located in the Honshu region, in 1998 (Doi and Kato 2003), and subsequently in Akita and Okayama Prefectures in 1999 (Fuji and Yamamoto 2000;Tanina et al 2001), and eventually spread throughout Honshu and other regions of the country (Fig. 1a) (Goto et al 2001;Horita and Sasaki 2005;Kondo et al 2011;Kurokawa et al 2003;Sako et al 2006).…”

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confidence: 96%

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Molecular epidemiology of Impatiens necrotic spot virus on greenhouse ornamental plants in a local area of Japan

et al. 2015

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Impatiens necrotic spot virus (INSV), belonging to the genus Tospovirus, causes severe damage to greenhouse ornamental plants. We conducted population genetic analyses of INSV isolated from various greenhouse flowers in Iwate Prefecture as a model to elucidate how the virus invaded and spread within a local area of Japan. Forty-two and 30 sequences of the nucleocapsid protein gene (NG) and intergenic regions (IGR), respectively, of the small RNA of the virus were generated from 42 isolates collected from seven greenhouses in three districts, and then they were divided into 10 NG haplotypes and 13 IGR haplotypes. A combined haplotype analysis for the two loci revealed the presence of 14 NG/IGR haplotypes in the region. Genetic structure of the INSV population based on the NG sequences was differentiated according to districts and greenhouses, and 3 major NG haplotypes were predominant in each district. Genetic analysis based on IGR sequences showed that the population structure in some greenhouses consisted of 1 major IGR haplotype and some minor haplotypes with the same NG haplotype. Phylogenetic analysis based on NG and IGR sequences illustrated that INSV haplotypes were clustered according to geographic origin, including the isolates previously reported in Japan and other countries. Host species did not seem to influence the genetic structure of the INSV population. These results suggest that some founder isolates were introduced individually from other epidemic regions to each district in the region through different routes and then spread within the local areas and greenhouses.

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Section: Discussionmentioning

confidence: 94%

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confidence: 96%

Molecular epidemiology of Impatiens necrotic spot virus on greenhouse ornamental plants in a local area of Japan

et al. 2015

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“…In Japan, INSV was first recorded on verbenas in 1999 (Iriyama et al, 1999), and occurrences of INSV infection have increased for various flower species in recent years (Fuji and Yamamoto, 2000;Tanina et al, 2001;Goto et al, 2001). Although five thrips species, F. occidentalis, F. intonsa, T. setosus, T. palmi and T. tabaci, have been confirmed as vectors of tospoviruses in Japan (Kobatake et al, 1976(Kobatake et al, , 1984Iwaki et al, 1984;Kato and Katayama, 1998;Sakurai et al, 1998;Inoue et al, 2002), the vector species of INSV have remained unknown.…”

Section: Introductionmentioning

confidence: 99%

Distinct efficiencies of Impatiens necrotic spot virus transmission by five thrips vector species (Thysanoptera: Thripidae) of tospoviruses in Japan

Sakurai

Inoue

Tsuda

2004

Appl. Entomol. Zool.

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Five thrips species known as vectors of tospoviruses in Japan, Frankliniella occidentalis, F. intonsa, Thrips setosus, T. palmi and T. tabaci, were studied for their transmission competence of Impatiens necrotic spot virus (INSV). The competence was examined for adults that acquired the virus as newly hatched larvae using a petunia leaf disk assay. No members of the genus Thrips transmitted the virus; the INSV-N protein was not detected in them by DAS-ELISA. On the other hand, two species of the genus Frankliniella were confirmed as vectors of INSV. Both sexes of F. occidentalis transmitted the virus efficiently (males: 80.5%, females: 78.7%). In F. intonsa, however, the transmission efficiency was relatively low and differed between the sexes (males: 18.3%, females: 3.7%). Most F. occidentalis adults showing ELISA-positive values transmitted INSV; however, only one third of ELISA-positive F. intonsa adults did so. The amounts of the INSV-N protein in ELISA-positive and transmitting adults were larger in F. occidentalis than in F. intonsa by sex. These results show that the transmission of INSV may be characteristic of the genus Frankliniella, and that F. occidentalis is probably the primary vector of INSV in Japan.

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“…The host range of the isolated virus and the symptoms it induced (Table 1) were similar to those of INSV (Daughtrey et al 1997;Fuji and Yamamoto 2000;Goto and Natsuaki 2001;Nekoduka et al 2005;Tanina et al 2001). Spherical, enveloped virus particles, ca.…”

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confidence: 76%

First report of Impatiens necrotic spot virus infecting chrysanthemum (Chrysanthemum morifolium) in Japan

Kondo

Yamashita

Sugiyama³

2011

J Gen Plant Pathol

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In 2009, chlorotic mottle and necrosis were observed on chrysanthemums (cv. Jimba) in Aomori Prefecture, Japan. A virus was isolated from the chrysanthemum plants by serial local-lesion transfer. The symptoms exhibited by the test plants, the particle morphology, the features of the protein and the potential for transmission by thrips were similar to those for Impatiens necrotic spot virus (INSV). The partial nucleotide sequences of the nucleocapsid protein gene and the 3 0 -untranslated sequence of the S RNA shared 99% identity with that of an INSV isolate. This report is the first of INSV infection of chrysanthemums in Japan.

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Necrotic spot disease of cineraria caused by Impatiens necrotic spot virus.

Cited by 13 publications

References 3 publications

Molecular epidemiology of Impatiens necrotic spot virus on greenhouse ornamental plants in a local area of Japan

Molecular epidemiology of Impatiens necrotic spot virus on greenhouse ornamental plants in a local area of Japan

Distinct efficiencies of Impatiens necrotic spot virus transmission by five thrips vector species (Thysanoptera: Thripidae) of tospoviruses in Japan

First report of Impatiens necrotic spot virus infecting chrysanthemum (Chrysanthemum morifolium) in Japan

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