بحث بسيط

السجلات المعروضة 1 -- 7 من 7

Selection and characterisation of an HD1-like Bacillus thuringiensis isolate with a high insecticidal activity against Spodoptera littoralis (Lepidoptera: Noctuidae)

Azzouz, Hichem; Kebaili-Ghribi, Jihene; ben Farhat-Touzri, Dalel; Daoud, Fatma; Fakhfakh, Ines; ... more authors ... less authors ( John Wiley & Sons, Ltd , 2014 , Article)

Spodoptera littoralis (Boisduval) larvae are known by their susceptibility to Bacillus thuringiensis subsp. aizawai strains. In order to prevent the appearance of B. thuringiensis (Bt) resistance and to develop economical ...

Overcome of carbon catabolite repression of bioinsecticides production by sporeless Bacillus thuringiensis through adequate fermentation technology

Khedher, Saoussen Ben; Jaoua, Samir; Zouari, Nabil ( Hindawi Publishing Corporation , 2014 , Article)

The overcoming of catabolite repression, in bioinsecticides production by sporeless Bacillus thuringiensisstrain S22 was investigated into fully controlled 3 L fermenter, using glucose based medium. When applying adequate ...

Biocontrol activity of four non- and low-fermenting yeast strains against Aspergillus carbonarius and their ability to remove ochratoxin A from grape juice

Fiori, Stefano; Urgeghe, Pietro Paolo; Hammami, Walid; Razzu, Salvatorico; Jaoua, Samir; ... more authors ... less authors ( Elsevier , 2014 , Article)

Aspergillus spp. infection of grape may lead to ochratoxin A (OTA) contamination in processed beverages such as wine and grape juice. The aim of the current study was to evaluate the biocontrol potential of two non-fermenting ...

Fungal and aflatoxin contamination of marketed spices

Hammami, Walid; Fiori, Stefano; Al Thani, Roda; Kali, Najet Ali; Balmas, Virgilio; ... more authors ... less authors ( Elsevier Ltd , 2014 , Article)

Fourteen spice samples were collected from local markets in Doha, Qatar, during 2012, and were surveyed for the presence of potentially harmful mycoflora and for contamination with aflatoxins B1, B2, G1, and G2 by ...

New Bacillus thuringiensis toxin combinations for biological control of Lepidopteran larvae

Elleuch, Jihen; Zribi Zghal, Raida; Jemaa, Mohamed; Azzouz, Hichem; Tounsi, Slim; ... more authors ... less authors ( Elsevier B.V. , 2014 , Article)

Cyt1Aa from Bacillus thuringiensis israelensis is known by its synergistical activity with B. thuringiensis and Bacillus sphaericus toxins. It is able to improve dipteran specific toxins activity and can prevent or overcome ...

Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium

Ben Khedher, Saoussen; Jaoua, Samir; Zouari, Nabil ( Sociedade Brasileira de Microbiologia - SBM , 2014 , Article)

In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman ...

Isolation of the Bacillus thuringiensis plasmid carrying Bacthuricin F4 coding genes and evidence of its conjugative transfer

Ben Fguira, Ines; Fourati, Zaineb; Kamoun, Fakher; Tounsi, Slim; Jaoua, Samir ( The Journal of Infection in Developing Countries , 2014 , Article)

INTRODUCTION: Conjugation is an excellent natural mode of DNA transfer in vivo between bacteria, particularly when these conjugative elements carry technological traits such as bacteriocin encoding genes. In the present ...