Authors:V. Parrag, Z. Gillay, Z. Kovács, A. Zitek, K. Böhm, B. Hinterstoisser, R. Krska, M. Sulyok, J. Felföldi, F. Firtha, and L. Baranyai
Introduction The detection of fungal infections is of great importance in food science since one of the most serious problems of food safety is the presence of mycotoxins produced by microscopic fungi. Molds can grow on many kinds of substrates
Authors:B. R. Bakheit, A. A. El-Shiemy, F. S. Sedek, and A. A. Ismail
The present study was carried out during the three successive growing seasons of 1996, 1997 and 1998 to estimate the additive, dominance and epistatic components of genetic variation for the yield, yield components and wilt infection by using ninety triple test cross families and their parents, F1 and F2 in four sesame crosses. A randomized complete block design with three replications was used. The results indicated that mean squares of the genetic analysis of variance and the overall epistatic gene effects for the crosses showed highly significant differences for all studied characters. The [i] type (additive × additive) was considered as a major component of the overall epistatic effects for 1000-seed weight in the TTC3 cross, wilt infection percentage in TTC3 and TTC4, number of capsules/plant in TTC1, TTC2 and TTC4 and seed yield/plant in all crosses. The ratio of (H/D)1 for all crosses confirms the presence of partial dominance for all studied traits. The direction of dominance was positive and significant for wilt infection in TTC4, oil percentage in TTC1 and TTC4, number of capsules/plant and 1000-seed weight in TTC2 and seed yield/plant in all four crosses. The results also revealed that the highest proportion of recombinant lines was obtained for number of capsules/plant, 1000-seed weight and oil percentage in the TTC2 cross and for seed yield/plant in TTC3.
Authors:P. Duraimurugan, A. Regupathy, and P. Shanmugam
Enzyme assays were carried out to study the influence of Nucleopolyhedrovirus (HearNPV) and
(Btk) infection on the activity levels of pesticide detoxification enzymes, viz. carboxyl esterase (CE) and mixed function oxidase (MFO) in
. HearNPV at LC
reduced the MFO activity by 12.0–13.5% and CE activity by 14.88–15.25% at 96 hours after treatment. Btk at LC
reduced the MFO activity by 4.17–4.27% and CE activity by 5.77–6.55%. The joint application of HearNPV and cypermethrin at LC
resulted in suppression of MFO activity by 15.08–17.35% and CE activity by 16.39–17.30%. Combined treatment of Btk and cypermethrin resulted in suppression of MFO by 4.24–6.72 and CE by 8.42–8.97%, respectively.
Authors:T. Janda, M. Cséplő, Cs. Németh, Gy. Vida, M. Pogány, G. Szalai, and O. Veisz
Treatment with various concentrations (0, 5, 15 and 20%) of PEG was used to simulate water stress, followed by inoculation with
(DTR) at two different points of time (6 and 72 h after the PEG treatment) in two DTR resistant (M-3 and Mv Magvas) and two sensitive (Bezostaya 1 and Glenlea) wheat varieties. The reduction in biomass production due to the PEG treatments was more pronounced in the shoots than in the roots. While in the case of Bezostaya 1 5% PEG reduced the level of infection, 20% PEG treatment lowered the tolerance level of M-3. DTR infection may be more efficient in inducing antioxidative defence systems than water stress. However, there was no direct correlation between the activity of the individual antioxidant enzymes and the drought or DTR tolerance of wheat plants.
Authors:Cosme Alvarado-Esquivel, Ángel Osvaldo Alvarado-Félix, and Gustavo Alexis Alvarado-Félix
neurological disorders [ 2 ]. Toxocariasis is one of the most commonly reported zoonotic helminth infections in the world [ 3 ]. Transmission to humans occurs by accidental infection of eggs present in, for instance, contaminated fruits or vegetables [ 4