Diaporthe species complex occurring on Asparagus kiusianus in Japan

Thao Le Dinh, Myo Zaw, Masaru Matsumoto

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In 2016, a new disease caused by the Diaporthe species complex was discovered in “hamatamabouki”, the Japanese wild asparagus (Asparagus kiusianus Makino), in the coastal area of Northern Kyushu. Two distinct fungal species were recorded as causing the brown and oval-shaped lesions shown by the aerial parts of the plants. Diaporthe asparagi (Phomopsis asparagi) was identified based on molecular analysis of the nuclear ribosomal internal transcribed spacers (ITS), while D. unshiuensis, a first report on the genus Asparagus, was identified using the multi-locus sequence analysis of the ITS region, the translation elongation factor 1-alpha (TEF1-alpha) and the beta-tubulin (TUB) genes. The morphological characteristics of these species were observed, most of which being in accordance with previous descriptions. When A. kiusianus plants were exposed to infection by D. asparagi and D. unshiuensis to fulfill Koch’s postulates, both fungal species proved to be pathogenic.

Original languageEnglish
Pages (from-to)161-167
Number of pages7
JournalJournal of Plant Pathology
Volume101
Issue number1
DOIs
Publication statusPublished - Feb 15 2019

All Science Journal Classification (ASJC) codes

  • Plant Science

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