Dry seeds of seven winter wheat varieties and one line were exposed by gamma-rays and chemical mutagens to determine their effect on plant grows and development. Next parameters have been investigated – plant survival, pollen fertility, components of yield structure. Informative value by mutation depression evaluation of all parameters has been developed. The most informative parameters for mut...

the aim of this study was to determine the effect of propolis and pollen extract on biochemical and haematological parameters of onchorhynchus  mykiss. one hundred and eighty healthy fish, o. mykiss (mean weight 20.57±4.48 g) were used for growth performance and haematological assays. they were randomly selected, and distributed among fifteen 600-l fiberglass tanks as three treatments (1% polle...

Pollen allergens of the Poaceae family comprise one of the main causes of pollinosis worldwide. Although most of cereals are included in this family, certain pollination characteristics and aerobiological features differentiate them from common wild grass pollen. Cereal pollen grains cannot be easily characterised as potential sources of aero allergens, because of their pollination mode (most o...

The entire pollen life span is driven by polyamine (PA) homeostasis, achieved through fine regulation of their biosynthesis, oxidation, conjugation, compartmentalization, uptake, and release. The critical role of PAs, from microsporogenesis to pollen-pistil interaction during fertilization, is suggested by high and dynamic transcript levels of PA biosynthetic genes, as well as by the activities...

Pollen serves as an essential protein source for honey bee larvae. The nutrients in pollen greatly influence larval growth and development. Here, the survival, prepupal weight, developmental stage, digestibility midgut cells ( Apis mellifera L.) larvae were evaluated by performing vitro 5-ethynyl-2′-deoxyuridine (EdU) assays on reared three single pollens Brassica napus L., Armeniaca sibirica P...

In this study, the characteristics of tetraploid and diploid watermelon’s flowers, fruits, seeds were examined, their differences investigated. As plant material, ST101 ST82; WL92, WL124, WL134, WL216, WL259-B WL235 used. Flower (pollen viability, pollen germination, number anthers per anther flower); fruit (weight, length, diameter, rind thickness TSS) seed (weight 1000 seed, width, thickness,...

background: there is a rapidly growing trend in the consumption of herbal remedies in the developing countries. the phoenix dactylifera date palm pollen (dpp) is used in the traditional medicine for male infertility. the aim of this study was to determine the effects of orally administered dpp on the reproductive system of adult male rats.   methods: fifty sprague-dawley rats were maintained ac...

Propylea japonica (Thunberg) (Coleoptera: Coccinellidae) is a prevalent pollen consumer in corn fields and is therefore exposed to insecticidal proteins contained in the pollen of insect-resistant transgenic corn cultivars expressing Cry proteins derived from Bacillus thuringiensis (Bt). In the present study, the potential effect of Cry1Ab/2Aj- or Cry1Ac-containing transgenic Bt corn pollen on ...

Laboratory tests were conducted to establish the relative toxicity of Bacillus thuringiensis (Bt) toxins and pollen from Bt corn to monarch larvae. Toxins tested included Cry1Ab, Cry1Ac, Cry9C, and Cry1F. Three methods were used: (i) purified toxins incorporated into artificial diet, (ii) pollen collected from Bt corn hybrids applied directly to milkweed leaf discs, and (iii) Bt pollen contamin...