Ditylenchus gigas n. sp. parasitizing broad bean: a new stem nematode singled out from the Ditylenchus dipsaci species complex using a polyphasic approach with molecular phylogeny
نویسندگان
چکیده
منابع مشابه
Molecular Diagnostics, Taxonomy, and Phylogeny of the Stem Nematode Ditylenchus dipsaci Species Complex Based on the Sequences of the Internal Transcribed Spacer-rDNA.
ABSTRACT The stem nematode Ditylenchus dipsaci is of great economic importance worldwide as a parasite of agricultural crops and horticultural plants. The internal transcribed spacer (ITS) of rDNA from 23 populations of the D. dipsaci complex from various host plants were amplified and sequenced. Seven previously studied populations were also included in the study. The phylogenetic analysis of ...
متن کاملParasitism of Nonhost Cultivars by Ditylenchus dipsaci.
The alfalfa race of Ditylenchus dipsaci parasitized and caused characteristic symptoms on nonhost seedlings of sweet clover, onion, tomato, sugarbeet, and wheat in controlled growth-chamber studies. Although the nematode was unable to reproduce on any of the cultivars, it caused plant mortality ranging from 20% on sugarbeet and tomato to 100% on onion.
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cots in the family Commeliaceae. The basic morphology of these plants appears to favor root-knot nematode development in aboveground plant parts. Leaves of both plants develop in the crown near the soil; they are large, 20-30 cm long, and densely arranged so that nematodes on younger leaves are protected from direct solar irradiation. The dense pubescent foliage, especially the convoluted young...
متن کاملUsing of hydrogen cyanide against Ditylenchus dipsaci nematode present on garlic
The stem and bulb nematode (Ditylenchus dipsaci) is a serious quarantine pest of vegetables spreading worldwide via seed and planting material. Currently, a hot water technique is used as the pre-seed treatment, which is difficult to execute and the risk of seed damage is high. The objectives of this study were to evaluate the (a) penetration of gaseous hydrogen cyanide (HCN) into garlic tissue...
متن کاملDitylenchus dipsaci o n ' W a n d o ' Pea ( Pisum sativum L . ) I BARBARA
'Wando ' pea is susceptible to Ditylenchus dipsaci f rom Raleigh, N. C. (RNC) but resistant to the same species from Waynesville, N. C. (WNC) . Homogenates of RNC and WNC were analyzed for pectolytic and cellulolytic enzyme activity; both had high Cx activity with W N C two to three times more active than RNC. Polymethylglacturonase activity was three to five times higher in RNC, but polygalact...
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ژورنال
عنوان ژورنال: Plant Pathology
سال: 2011
ISSN: 0032-0862
DOI: 10.1111/j.1365-3059.2011.02430.x