منابع مشابه
Associations between dru Types and SCCmec Cassettes
Molecular typing is an important tool in the investigation of methicillin resistant Staphylococcus aureus (MRSA) outbreaks and in following the evolution of MRSA. The staphylococcal cassette chromosome mec (SCCmec) contains a hypervariable region with a variable number of 40 bp repeats named direct repeat units (dru). The dru region has been suggested as a supplementary typing method for MRSA a...
متن کاملDiapause Induction and Termination in Hyphantria cunea (Drury) (Lepidoptera: Arctiinae)
The fall webworm, Hyphantria cunea (Drury), enters facultative diapause as a pupa in response to short-day conditions during autumn. Photoperiodic response curves showed that the critical day length for diapause induction was 14 h 30 min, 14 h 25 min and 13 h 30 min at 22, 25 and 28°C, respectively. The photoperiodic responses under non-24 h light-dark cycles demonstrated that night length play...
متن کاملAutophagy studies in Bombyx mori
Autophagy, which is well conserved from yeast to mammals, plays essential roles in development and diseases. Using the domesticated silkworm, Bombyx mori, as a model insect, several reports on autophagy have been made recently. Autophagic features are observed in the midgut and fat body during the larval-pupal transition as well as the silk gland and ovarian nurse cells during the pupal stage. ...
متن کاملSex determination in Bombyx mori
We describe here the current status and future prospects of sex-determination studies in the silkworm, Bombyx mori. The sex of Bombyx is strongly controlled by the presence of the W chromosome. Although several classical studies suggested that a presumptive feminizing gene (Fem) is located at a limited portion of the W chromosome, the Fem gene has not yet been cloned. Recently, the homologues o...
متن کاملعملکرد تولیدمثلی Chouioia cunea Yang (Hym.: Eulophidae) زنبور پارازیتویید پروانه ابریشمباف پاییزی Hyphantria cunea Drury (Lep.: Arctiidae)
پروانه ابریشمباف پاییزی Hyphantria cunea (Drury) (Lepidoptera: Arctiidae) آفت پروانه آفت مهم گیاهان جنگلی باغی و محصولات زراعی در استان گیلان است. در این پژوهش، عملکرد تولید مثلی زنبورChouioia cunea Yang (Hym.: Eulophidae)، پارازیتوئید تجمعی شفیره H. cunea در دمای°C 1±24، رطوبت %5±70 و دوره نوری 14:10 ساعت روشنایی، به تاریکی بررسی شد. شفیره‌های میزبان در معرض تراکمهای 1، 2، 4، 8، 12 و 16 حشر...
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ژورنال
عنوان ژورنال: The Canadian Entomologist
سال: 1900
ISSN: 0008-347X,1918-3240
DOI: 10.4039/ent3216-1