indole ahloids of vinca species are valued greatly in medical sciences, one reason being for their use as powerful anticancer agents. there are four species of vinca in iran: v. rosea, v. major, v. minor and v. herbacea. in previous investigations, we found that these plants have considerable alkaloid similarity (58.8- 75%). therefore, chromosomic and electrophuretic studies followed after inve...

The objective of this study was to determine the effect of application of pesticides on morphology, viability, and germination of pollen grains of Blackberry (Rubus glaucus Benth.) and Tree tomato (Solanum betaceum Cav.). The study was performed at Patate, Tungurahua province, Ecuador and was divided into two phases. Phase one dedicated to the study of morphology, viability, and identification ...

background: to determine the prevalence and intensity of helminths and their zoonotic importance in small rodents inhabiting in the suburban areas of hamadan city,iran. methods: the present survey was conducted on the helminth infections of two species of rodents apodemus sylvaticus (n=60) and mus musculus (n=72) in the suburban areas of hamadan city during 2010-2012. rodents were collected and...

Interspecific germplasm introgression enables unique opportunities for genetic analysis and improvement of domesticated plants, but is commonly impeded by barriers to transmission and recombination, insufficient genetic resolution, and the difficulty of deriving economically suitable products. Such impediments are mitigated to varying extents by the breeding of chromosome substitution lines; ho...

Pomphorhynchus laevis is a common fish parasite in Europe which   has been reported from Acipenser stellatus, Barbus capito, Barbus lacerta, Barbus mursa and Onchorhynchus mykiss in Iran. In a survey on the aquaculture potential of Gamasiab River in Hamedan Province, endemic fish parasites were investigated in summer and autumn 2008. After recording biometric characteristics, common necropsy an...

Indole ahloids of Vinca species are valued greatly in medical sciences, one reason being for their use as powerful anticancer agents. There are four species of Vinca in Iran: V. rosea, V. major, V. minor and V. herbacea. In previous investigations, we found that these plants have considerable alkaloid similarity (58.8- 75%). Therefore, chromosomic and electrophuretic studies followed after i...

in this study prevalence of parasites in 118 samples (62 foxes and 56 jackals) was investigated in ilam province of iran, in 2010-2013, situated in the western part of the national capital of iran. the nematodes which were cleared in lactophenol, cestodes and acanthocephalans were stained using acetocarmine and haematoxylen, respectively for identification of the parasite species. cryptosporidi...

In this study prevalence of parasites in 118 samples (62 foxes and 56 jackals) was investigated in Ilam province of Iran, in 2010-2013, situated in the western part of the national capital of Iran. The nematodes which were cleared in lactophenol, cestodes and acanthocephalans were stained using acetocarmine and haematoxylen, respectively for identification of the parasite species. Cryptosporidi...

In this study prevalence of parasites in 118 samples (62 foxes and 56 jackals) was investigated in Ilam province of Iran, in 2010-2013, situated in the western part of the national capital of Iran. The nematodes which were cleared in lactophenol, cestodes and acanthocephalans were stained using acetocarmine and haematoxylen, respectively for identification of the parasite species. Cryptosporidi...

Hybrids between maize (Zea mays L.) and perennial teosinte (EuMaena perennis Hitchc.) offer a favorable opportunity to follow the behavior of triplicate sets of chromosomes in a triploid hybrid. Maize, the diploid parent, has been carefully analyzed both genetically and cytologically. Perennial teosinte seems to be unquestionably a true tetraploid. Its tetraploid character is evident from (1) t...