ants consume or store the honeydew which is secreted by aphids or other homopteran insects. major benefit of ant attendance for aphids is protection against natural enemies. a study was carried out during 2009-2010, to determine the mutualistic association between ants and aphids on different host plants in some parts of khuzestan and esfahan provinces. a total of 20 ant species belonging to 12...

We consider the problem of automatic discovery of patterns and the corresponding subfamilies in a set of biosequences. The sequences are unaligned and may contain noise of unknown level. The patterns are of the type used in PROSITE database. In our approach we discover patterns and the respective subfamilies simultaneously. We develop a theoretically substantiated significance measure for a set...

five oppiid mite species (oribatida: oppiidae) belonging to three genera (corynoppia, ramusella and rhinoppia) are reported as new records for the mite fauna of iran. some of their morphological features and distributions in the world are presented. a key to the subfamilies, genera and species of all iranian oppiid mites is given.

Several diagnostic differences that distinguish human Alu subfamilies are clustered just downstream from the B box of the RNA polymerase III promoter; we tentatively refer to this diagnostic region as the DB box. Assuming that this region might determine the relative transcriptional activity of Alu subfamilies, we examined the interaction of nuclear proteins with DB box sequences representing d...

this paper reports the occurrence of the hymenoterous parasitoids of the beet moth, scrobipalpa ocellatella boyd larvae in iran for the first time. two braconid species of microchelonus subcontractus abdinbekova and bracon intercessor nees were collected from the larvae of s. ocellatella in the sugar beet fields located in ray, the southern district of tehran. these parasitoids are belonging to...