Orange wheat blossom midge, Sitodiplosis mosellana (Géhin) (Dipt., Cecidomyidae), on wheat in Finland

Sitodiplosis mosellana has been found for the first time infesting wheat in Finland. In the wheat field studied, the egg laying period was in mid July, and the larvae left the ears in mid August. On an average ca. 20 % of the ears were infested. It was estimated, that 1.7 % of the grains were sucked by the larvae. The level of infestation was found to differ between wheal varieties.

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Structure-Reactivity Relationships on Substrates and Inhibitors of the Lysine Deacylase Sirtuin 2 from Schistosoma Mansoni (SmSirt2)

10.26434/chemrxiv.7957544 ◽

2019 ◽

Cited By ~ 1

Author(s):

Daria Monaldi ◽

Dante Rotili ◽

Julien Lancelot ◽

Martin Marek ◽

Nathalie Wössner ◽

...

Keyword(s):

Schistosoma Mansoni ◽

Human Cancer ◽

Egg Laying ◽

Human Cancer Cells ◽

Parasite Survival ◽

Survival And Reproduction ◽

Emergence Of Resistance ◽

First Time ◽

Parasitic Life Cycle

The only drug for treatment of Schistosomiasis is Praziquantel, and the possible emergence of resistance makes research on novel therapeutic agents necessary. Targeting of Schistosoma mansoni epigenetic enzymes, which regulate the parasitic life cycle, emerged as promising approach. Due to the strong effects of human Sirtuin inhibitors on parasite survival and reproduction, Schistosoma sirtuins were postulated as therapeutic targets. In vitro testing of synthetic substrates of S. mansoni Sirtuin 2 (SmSirt2) and kinetic experiments on a myristoylated peptide demonstrated lysine long chain deacylation as an intrinsic SmSirt2 activity for the first time. Focused in vitro screening of the GSK Kinetobox library and structure-activity relationships (SAR) of identified hits, led to the first SmSirt2 inhibitors with activity in the low micromolar range. Several SmSirt2 inhibitors showed potency against both larval schistosomes (viability) and adult worms (pairing, egg laying) in culture without general toxicity to human cancer cells.<br>

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Characterization of a serine carboxypeptidase in the salivary glands and fat body of the orange wheat blossom midge, Sitodiplosis mosellana (Diptera: Cecidomyiidae)

Insect Biochemistry and Molecular Biology ◽

10.1016/j.ibmb.2005.11.004 ◽

2006 ◽

Vol 36 (2) ◽

pp. 154-160 ◽

Cited By ~ 24

Author(s):

Omprakash Mittapalli ◽

Ian L. Wise ◽

Richard H. Shukle

Keyword(s):

Salivary Glands ◽

Fat Body ◽

Serine Carboxypeptidase ◽

Sitodiplosis Mosellana ◽

Wheat Blossom Midge

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Sitodiplosis mosellana (Géhin), orange wheat blossom midge (Diptera: Cecidomyiidae).

Biological Control Programmes in Canada, 1981-2000 ◽

10.1079/9780851995274.0246 ◽

2009 ◽

pp. 246-249

Author(s):

J. F. Doane ◽

M. P. Braun ◽

O. O. Olfert ◽

F. Affolter ◽

K. Carl

Keyword(s):

Sitodiplosis Mosellana ◽

Wheat Blossom Midge

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Molecular mapping of major QTL conferring resistance to orange wheat blossom midge (Sitodiplosis mosellana) in Chinese wheat varieties with selective populations

Theoretical and Applied Genetics ◽

10.1007/s00122-019-03480-4 ◽

2019 ◽

Vol 133 (2) ◽

pp. 491-502 ◽

Cited By ~ 2

Author(s):

Lijing Zhang ◽

Miaomiao Geng ◽

Zhe Zhang ◽

Yue Zhang ◽

Guijun Yan ◽

...

Keyword(s):

Molecular Mapping ◽

Wheat Varieties ◽

Sitodiplosis Mosellana ◽

Chinese Wheat ◽

Major Qtl ◽

Wheat Blossom Midge

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Reproductive biology of two sympatric colubrid snakes, Chironius flavolineatus and Chironius quadricarinatus, from the Brazilian Cerrado domain

Amphibia-Reptilia ◽

10.1163/017353710x518423 ◽

2010 ◽

Vol 31 (4) ◽

pp. 463-473 ◽

Cited By ~ 6

Author(s):

Roberta Richard Pinto ◽

Otavio Augusto Vuolo Marques ◽

Ronaldo Fernandes

Keyword(s):

Reproductive Biology ◽

Sexual Maturity ◽

Egg Production ◽

Sympatric Species ◽

Egg Laying ◽

Reproductive Pattern ◽

Brazilian Cerrado ◽

Wet Season ◽

Reproductive Cycles ◽

First Time

AbstractThe reproductive biology of Chironius flavolineatus and C. quadricarinatus from the Brazilian Cerrado domain is described, including sexual maturity, female fecundity, and reproductive cycles of males and females. Egg-laying is recorded here for the first time for C. quadricarinatus. Males of both species attain sexual maturity with a smaller snout-vent length than females. Females of C. flavolineatus have an extended reproductive cycle with egg production during the wet season, whereas males exhibit year-round sperm production. Chironius quadricarinatus has continuous reproductive cycles in both sexes. Differences in reproductive pattern between these two sympatric species are probably related to phylogenetic constraints on intrageneric lineages of Chironius.

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Functional Analysis of Odorant-Binding Proteins 12 and 17 from Wheat Blossom Midge Sitodiplosis mosellana Géhin (Diptera: Cecidomyiidae)

Insects ◽

10.3390/insects11120891 ◽

2020 ◽

Vol 11 (12) ◽

pp. 891

Author(s):

Weining Cheng ◽

Yudong Zhang ◽

Jinlin Yu ◽

Wei Liu ◽

Keyan Zhu-Salzman

Keyword(s):

Recombinant Proteins ◽

Host Selection ◽

Binding Assay ◽

Biologically Active ◽

Hexyl Acetate ◽

Odorant Binding Proteins ◽

Sitodiplosis Mosellana ◽

Acetate Methyl ◽

Odorant Binding ◽

Wheat Blossom Midge

The wheat blossom midge Sitodiplosis mosellana, one of the most disastrous wheat pests, depends highly on olfactory cues to track suitable plants. To better understand the olfactory recognition mechanisms involved in host selection, in the present study we cloned two S. mosellana adult antenna-specific odorant binding protein (OBP) genes, SmosOBP12 and SmosOBP17, and evaluated bacterially expressed recombinant proteins for their selectivity and sensitivity for host wheat volatiles using the fluorescence-based ligand binding assay. The results showed that both SmosOBPs effectively bound alcohol, ester, ketone, and terpenoid compounds. Particularly, SmosOBP12 had significantly higher affinities (Ki < 10.5 μM) than SmosOBP17 (Ki2 > 0.1 μM) to 3-hexanol, 1-octen-3-ol, D-panthenol, 3-carene, (Z)-3-hexenylacetate, hexyl acetate, methyl salicylate, heptyl acetate, and ethyl heptanoate. Consistently, S. mosellana females were attracted to all these chemicals in a behavioral assay using Y-tube olfactometer. SmosOBP12 also bound aldehyde, but neither bound alkanes. Notably, SmosOBP12 exhibited strong affinity to ocimene (Ki = 8.2 μM) that repelled S. mosellana. SmosOBP17, however, was insensitive to this compound. Taken together, our results indicate that SmosOBP12 may play a greater role than SmosOBP17 in perceiving these biologically active plant volatiles.

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AAC Foray red spring wheat

Canadian Journal of Plant Science ◽

10.4141/cjps-2015-007 ◽

2015 ◽

Vol 95 (4) ◽

pp. 799-803 ◽

Cited By ~ 1

Author(s):

P. D. Brown ◽

H. S. Randhawa ◽

J. Mitchell Fetch ◽

S. L. Fox ◽

D. G. Humphreys ◽

...

Keyword(s):

Triticum Aestivum ◽

Spring Wheat ◽

Triticum Aestivum L ◽

Agronomic Performance ◽

Head Blight ◽

Hard Red Spring Wheat ◽

Sitodiplosis Mosellana ◽

Wheat Market ◽

Market Class ◽

Wheat Blossom Midge

Brown, P. D., Randhawa, H. S., Mitchell Fetch, J., Fox, S. L., Humphreys, D. G., Meiklejohn, M., Green, D., Wise, I., Fetch, T., Gilbert, J., McCallum, B. and Menzies, J. 2015. AAC Foray red spring wheat. Can. J. Plant Sci. 95: 799–803. AAC Foray, an orange wheat blossom midge (Sitodiplosis mosellana Géhin) tolerant hard red spring wheat (Triticum aestivum L.), combined high grain yield and good agronomic performance with excellent resistance to leaf and stem rust, and improved resistance to Fusarium head blight. AAC Foray had maturity, straw strength, and test weight similar to the check cultivars. AAC Foray is eligible for grade of the Canada Prairie Spring Red wheat market class.

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DAILY PATTERNS OF ACTIVITY OF FEMALES OF THE ORANGE WHEAT BLOSSOM MIDGE, SITODIPLOSIS MOSELLANA (GÉHIN) (DIPTERA: CECIDOMYIIDAE)

The Canadian Entomologist ◽

10.4039/ent125725-4 ◽

1993 ◽

Vol 125 (4) ◽

pp. 725-736 ◽

Cited By ~ 29

Author(s):

Kenneth A. Pivnick ◽

Edith Labbé

Keyword(s):

Light Intensity ◽

Vertical Migration ◽

Early Morning ◽

Field Conditions ◽

Sitodiplosis Mosellana ◽

Wind Speeds ◽

Air Temperatures ◽

Total Fecundity ◽

Wheat Blossom Midge ◽

Daily Patterns

AbstractThe daily patterns of activity of females of the orange wheat blossom midge, Sitodiplosis mosellana (Géhin), were observed in controlled laboratory conditions and in field conditions in eastern Saskatchewan in mid-July 1986 and 1987. In the field, during the daytime, females rested on stems of wheat plants within 30 cm of the ground and, at approximately 2000 hours CST, flew up to wheat heads. Most oviposition took place between 2000 and 2145 hours (or 75 min before, to 30 min after, sunset). Toward the end of the oviposition period, females were frequently seen drinking dew from wheat heads. On some evenings, females migrated down from the heads following oviposition, but on more than half of the evenings they remained on the heads until early morning. However, they never moved down to the low level they occupied during the day until the next morning, when the migration was usually complete by 0900–1000 hours. Light intensity appeared to regulate the vertical migration of females. Cloudy conditions may allow an earlier onset of oviposition. Flight was limited to air temperatures above 14–15 °C and oviposition to temperatures above 10–11 °C. Wind speeds of 10 km per h or more and rain occasionally limited activity. In the laboratory, oviposition activity occurred almost exclusively during the scotophase, mainly in the first 2 h. Mean total fecundity was 83.6 ± 10.9 (±SE) eggs, and mean longevity was 6.6 ± 0.6 days. No oviposition took place on the 1st night, and the greatest mean daily fecundity occurred on the 3rd night.

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