Genetic Isolation among Host Races of the Anther Smut Fungus Microbotryum violaceum on Three Host Plant Species

1999 ◽  
Vol 160 (5) ◽  
pp. 907-916 ◽  
Author(s):  
Jacqui A. Shykoff ◽  
Anne Meyhöfer ◽  
Erika Bucheli
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Smut Fungus ◽  
Genetic Isolation ◽  
Microbotryum Violaceum ◽  
Host Races ◽  
Host Plant Species ◽  
Anther Smut

Local Maladaptation in the Anther-Smut Fungus Microbotryum violaceum to Its Host Plant Silene latifolia: Evidence from a Cross-Inoculation Experiment

Evolution ◽  
1999 ◽  
Vol 53 (2) ◽  
pp. 395 ◽  
Author(s):  
Oliver Kaltz ◽  
Sylvain Gandon ◽  
Yannis Michalakis ◽  
Jacqui A. Shykoff
Keyword(s):  
Host Plant ◽  
Silene Latifolia ◽  
Smut Fungus ◽  
Inoculation Experiment ◽  
Microbotryum Violaceum ◽  
Anther Smut

Molecular evidence against phylogenetically distinct host races of the pea aphid (Acyrthosiphon pisum)

Genome ◽  
1998 ◽  
Vol 41 (6) ◽  
pp. 769-775 ◽  
Author(s):  
Elizabeth Grace Boulding
Keyword(s):  
Host Plant ◽  
Cytochrome Oxidase ◽  
Plant Species ◽  
Acyrthosiphon Pisum ◽  
Cytochrome Oxidase I ◽  
Pea Aphid ◽  
Mitochondrial Haplotype ◽  
Host Races ◽  
Host Plant Species ◽  
Geographical Regions

Pea aphid (Acyrthosiphon pisum) clones have been shown to be adapted to particular host plant species but it is unknown whether there are host races. A 1101 base pair region of the mitochondrial cytochrome oxidase I gene (COI) was sequenced for 21 pea aphid clones that had been collected from different host plants in Canada and the U.S.A. Only five closely related mitochondrial haplotypes were found. A maximum likelihood phylogeny was estimated for these five haplotypes and four related aphid species: Acyrthosiphon macrosiphum, A. kondoi, Fimbriaphis fimbriata, and Macrosiphum creelii. Pea aphids from the same host plant species were no more likely to have the same mitochondrial haplotype than aphids from different host plant species. In addition, aphids from the same geographical regions were no more likely to have the same mitochondrial haplotype than aphids from different geographic regions. I therefore reject the hypothesis that there are monophyletic host races of the pea aphid.Key words: cytochrome oxidase I, exotic species, host plant, mtDNA sequence, phylogeny.

Anthracoidea transberingiana, a new smut species on Carex pauciflora from Beringia

Phytotaxa ◽  
2014 ◽  
Vol 174 (2) ◽  
pp. 105 ◽  
Author(s):  
Marcin Piątek
Keyword(s):  
New Species ◽  
Host Plant ◽  
Plant Species ◽  
Smut Fungus ◽  
Northern Europe ◽  
Spore Ornamentation ◽  
Host Plant Species ◽  
Spore Walls

The new smut fungus, Anthracoidea transberingiana attacking ovaries of Carex pauciflora, is described and illustrated from Beringia (Alaska and Kamchatka). The new species is compared with Anthracoidea caricis-pauciflorae infecting the same host plant species predominantly in northern Europe, from which it differs in having smaller spores, thinner spore walls, 2–3 weakly visible internal swellings and somewhat less prominent spore ornamentation.

scholarly journals Effect of host plant on the life history of the carnation tortrix moth Cacoecimorpha pronubana (Lepidoptera: Tortricidae)

2021 ◽  
pp. 1-7
Author(s):  
Marcin W. Zielonka ◽  
Tom W. Pope ◽  
Simon R. Leather
Keyword(s):  
Life History ◽  
Host Plant ◽  
Plant Species ◽  
Host Plants ◽  
Crop Protection ◽  
Plant Production ◽  
Pupal Weight ◽  
Production Environment ◽  
Host Plant Species ◽  
The Uk

Abstract The carnation tortrix moth, Cacoecimorpha pronubana (Hübner, [1799]) (Lepidoptera: Tortricidae), is one of the most economically important insect species affecting the horticultural industry in the UK. The larvae consume foliage, flowers or fruits, and/or rolls leaves together with silken threads, negatively affecting the growth and/or aesthetics of the crop. In order to understand the polyphagous behaviour of this species within an ornamental crop habitat, we hypothesized that different host plant species affect its life history traits differently. This study investigated the effects of the host plant species on larval and pupal durations and sizes, and fecundity (the number of eggs and the number and size of egg clutches). At 20°C, 60% RH and a 16L:8D photoperiod larvae developed 10, 14, 20 and 36 days faster when reared on Christmas berry, Photinia (Rosaceae), than on cherry laurel, Prunus laurocerasus (Rosaceae), New Zealand broadleaf, Griselinia littoralis (Griseliniaceae), Mexican orange, Choisya ternata (Rutaceae), and firethorn, Pyracantha angustifolia (Rosaceae), respectively. Female pupae were 23.8 mg heavier than male pupae, and pupal weight was significantly correlated with the duration of larval development. The lowest and the highest mean numbers of eggs were produced by females reared on Pyracantha (41) and Photinia (202), respectively. Clutch size differed significantly among moths reared on different host plants, although the total number of eggs did not differ. This study showed that different ornamental host plants affect the development of C. pronubana differently. Improved understanding of the influence of host plant on the moth's life history parameters measured here will help in determining the economic impact that this species may have within the ornamental plant production environment, and may be used in developing more accurate crop protection methodologies within integrated pest management of this insect.

The relationship among host plant species, egg clutch size, and level of parasitism for the sharpshooter Tapajosa rubromarginata

2020 ◽  
Vol 168 (12) ◽  
pp. 900-910
Author(s):  
Eduardo G. Virla ◽  
María B. Aguirre ◽  
Guido A. Van Nieuwenhove ◽  
Erica B. Luft Albarracin ◽  
Guillermo A. Logarzo
Keyword(s):  
Host Plant ◽  
Clutch Size ◽  
Plant Species ◽  
Host Plant Species ◽  
The Relationship

Influence of prey size and environmental factors on predation by Podisus maculiventris (Hemiptera: Pentatomidae) on viburnum leaf beetle (Coleoptera: Chrysomelidae)

2008 ◽  
Vol 140 (2) ◽  
pp. 192-202 ◽  
Author(s):  
Gaylord A. Desurmont ◽  
Paul A. Weston
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Biological Control Agent ◽  
Handling Time ◽  
Leaf Beetle ◽  
Podisus Maculiventris ◽  
Viburnum Opulus ◽  
Host Plant Species ◽  
Search Area ◽  
Rate Of Increase

AbstractExperiments were conducted under laboratory conditions to determine the influence of the relative sizes of predator and prey, temperature, presence of refugia, size of the search area, and host-plant species on the predation performance of Podisus maculiventris (Say) nymphs against viburnum leaf beetle, Pyrrhalta viburni (Paykull), a new landscape pest in North America that feeds on the foliage of species of Viburnum L. (Caprifoliaceae). Predator handling time was positively correlated with body mass of the prey for all instars of P. maculiventris, but the rate of increase of handling time relative to prey mass decreased as predator age increased. Temperature was positively correlated with predation rates, but the presence of refugia did not have an impact on predation. The influence of host-plant species and size of the search area was tested on southern arrowwood (Viburnum dentatum L.) and American cranberrybush (Viburnum opulus L. var. americanum Aiton). There was a significant interaction between plant species and size of the search area, the species effect becoming significant as leaf surface area increased. In the case of southern arrowwood a negative correlation between size of the search area and predation rate was also detected. The identification of these factors adds valuable knowledge for using P. maculiventris as a biological-control agent against P. viburni.

scholarly journals GRAPES, GALLS, AND GEOGRAPHY: THE DISTRIBUTION OF NUCLEAR AND MITOCHONDRIAL DNA VARIATION ACROSS HOST-PLANT SPECIES AND REGIONS IN A SPECIALIST HERBIVORE

Evolution ◽  
2001 ◽  
Vol 55 (7) ◽  
pp. 1345-1362 ◽  
Author(s):  
Douglas A. Downie ◽  
James R. Fisher ◽  
Jeffrey Granett
Keyword(s):  
Mitochondrial Dna ◽  
Host Plant ◽  
Plant Species ◽  
Specialist Herbivore ◽  
Dna Variation ◽  
Host Plant Species

scholarly journals Infection of alternative host plant species by Ustilago maydis

2004 ◽  
Vol 164 (2) ◽  
pp. 337-346 ◽  
Author(s):  
Claudia G. León-Ramírez ◽  
José Luis Cabrera-Ponce ◽  
Alfredo D. Martínez-Espinoza ◽  
Luis Herrera-Estrella ◽  
Lucila Méndez ◽  
...  
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Ustilago Maydis ◽  
Alternative Host ◽  
Host Plant Species

Expression of diverse midgut serine proteinases in the sericigenous Lepidoptera Antheraea assamensis (Helfer) is influenced by choice of host plant species

2010 ◽  
Vol 20 (1) ◽  
pp. 1-13 ◽  
Author(s):  
M. Saikia ◽  
Y. T. Singh ◽  
A. Bhattacharya ◽  
S. Mazumdar-Leighton
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Serine Proteinases ◽  
Host Plant Species ◽  
Antheraea Assamensis
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