scholarly journals Golovinomyces longipes (Noordel. & Loer.) L. Kiss on Matricaria chamomilla L.: another host range expansion

2021 ◽  
Author(s):  
M. Götz ◽  
U. Braun
Keyword(s):  
Sequence Analysis ◽  
Powdery Mildew ◽  
Host Range ◽  
Dna Sequence ◽  
Range Expansion ◽  
Matricaria Chamomilla ◽  
Important Family ◽  
The Past ◽  
Morphological Studies ◽  
Host Range Expansion

AbstractGolovinomyces longipes is a widespread powdery mildew on Solanaceae (Nicotiana, Petunia and Solanum spp.). In the past, it has been reported only once on Verbena (Verbenaceae), a non-solanaceaous host. Recently, this powdery mildew has been found on the composite Matricaria chamomilla. The identification of the powdery mildew species on this unusual host has been proved by morphological studies and DNA sequence analysis. Both datasets coincide with the characteristic data for G. longipes on Solanaceae. First inoculation experiments with further composites resulted in an infection of Brachyscome hybrid ‘Surdaisy’. To our knowledge, this is the first report of G. lonigpes on hosts belonging to the important family of Asteraceae and an additional proof of the broader host range of G. longipes beyond the Solanaceae.

scholarly journals The Xenorhabdus nematophila nilABC Genes Confer the Ability of Xenorhabdus spp. To Colonize Steinernema carpocapsae Nematodes

2008 ◽  
Vol 190 (12) ◽  
pp. 4121-4128 ◽  
Author(s):  
Charles E. Cowles ◽  
Heidi Goodrich-Blair
Keyword(s):  
Sequence Analysis ◽  
Host Range ◽  
Range Expansion ◽  
Genetic Locus ◽  
Host Tissue ◽  
Steinernema Carpocapsae ◽  
Genetic Element ◽  
Xenorhabdus Nematophila ◽  
Host Range Expansion ◽  
Species Specific

ABSTRACT Members of the Steinernema genus of nematodes are colonized mutualistically by members of the Xenorhabdus genus of bacteria. In nature, Steinernema carpocapsae nematodes are always found in association with Xenorhabdus nematophila bacteria. Thus, this interaction, like many microbe-host associations, appears to be species specific. X. nematophila requires the nilA, nilB, and nilC genes to colonize S. carpocapsae. In this work, we showed that of all the Xenorhabdus species examined, only X. nematophila has the nilA, nilB, and nilC genes. By exposing S. carpocapsae to other Xenorhabdus spp., we established that only X. nematophila is able to colonize S. carpocapsae; therefore, the S. carpocapsae-X. nematophila interaction is species specific. Further, we showed that introduction of the nilA, nilB, and nilC genes into other Xenorhabdus species enables them to colonize the same S. carpocapsae host tissue that is normally colonized by X. nematophila. Finally, sequence analysis supported the idea that the nil genes were horizontally acquired. Our findings indicate that a single genetic locus determines host specificity in this bacteria-animal mutualism and that host range expansion can occur through the acquisition of a small genetic element.

scholarly journals Evidence of host-range expansion from new powdery mildew (Blumeria graminis) infections of triticale (×Triticosecale) in France

2010 ◽  
Vol 60 (2) ◽  
pp. 207-220 ◽  
Author(s):  
A. S. Walker ◽  
A. Bouguennec ◽  
J. Confais ◽  
G. Morgant ◽  
P. Leroux
Keyword(s):  
Powdery Mildew ◽  
Host Range ◽  
Range Expansion ◽  
Blumeria Graminis ◽  
Host Range Expansion

Genomic evidence that resource-based trade-offs limit host-range expansion in a seed beetle

Evolution ◽  
2016 ◽  
Vol 70 (6) ◽  
pp. 1249-1264 ◽  
Author(s):  
Zachariah Gompert ◽  
Frank J. Messina
Keyword(s):  
Host Range ◽  
Range Expansion ◽  
Seed Beetle ◽  
Host Range Expansion ◽  
Trade Offs

scholarly journals Host range expansion of honey bee Black Queen Cell Virus in the bumble bee, Bombus huntii

Apidologie ◽  
2011 ◽  
Vol 42 (5) ◽  
pp. 650-658 ◽  
Author(s):  
Wenjun Peng ◽  
Jilian Li ◽  
Humberto Boncristiani ◽  
James P. Strange ◽  
Michele Hamilton ◽  
...  
Keyword(s):  
Host Range ◽  
Honey Bee ◽  
Range Expansion ◽  
Bumble Bee ◽  
Black Queen Cell Virus ◽  
Host Range Expansion ◽  
Queen Cell

scholarly journals Mountain pine beetle host-range expansion threatens the boreal forest

2011 ◽  
Vol 20 (10) ◽  
pp. 2157-2171 ◽  
Author(s):  
CATHERINE I. CULLINGHAM ◽  
JANICE E. K. COOKE ◽  
SOPHIE DANG ◽  
COREY S. DAVIS ◽  
BARRY J. COOKE ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Host Range ◽  
Range Expansion ◽  
Mountain Pine Beetle ◽  
Host Range Expansion ◽  
Mountain Pine ◽  
Pine Beetle

Bacteria influence mountain pine beetle brood development through interactions with symbiotic and antagonistic fungi: implications for climate-driven host range expansion

Oecologia ◽  
2015 ◽  
Vol 179 (2) ◽  
pp. 467-485 ◽  
Author(s):  
Janet Therrien ◽  
Charles J. Mason ◽  
Jonathan A. Cale ◽  
Aaron Adams ◽  
Brian H. Aukema ◽  
...  
Keyword(s):  
Host Range ◽  
Range Expansion ◽  
Mountain Pine Beetle ◽  
Antagonistic Fungi ◽  
Host Range Expansion ◽  
Brood Development ◽  
Mountain Pine ◽  
Pine Beetle
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