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31.
Nasab K. Rawashdeh Nasri I. Haddad Mohamad M. Al-Ajlouni Munir A. Turk 《Genetic Resources and Crop Evolution》2007,54(1):129-138
Durum wheat landrace genotypes are disappearing from the main wheat areas in Jordan, because of spreading of new uniform cultivars
and the serious reduction in wheat cultivation. This study was conducted to evaluate genetic diversity in durum wheat landraces
from Jordan and to identify desirable agronomic traits. Landraces were collected from two target areas: Ajloun and Karak.
The collected material was grown under rainfed conditions using an augmented design with five blocks and four repeated check
cultivars. Data were collected for 14 morphological and agronomic traits. Phenotypic diversity index (H′) was estimated, and
the relationships among accessions were measured using cluster analysis and dendrogram similarity matrix. The results revealed
the presence of a wide range of variability among landraces., which possess high levels of variability for biological yield,
fertile tillers, number of seeds per spike, seed weight per spike and weight of 1000 seeds. These landraces must be considered
as a reservoir of genes that plant breeders need in their wheat improvement programs and should be conserved both ex situ and in situ. 相似文献
32.
Alice Maria Melville Paiva Della Libera Fernando Nogueira de Souza Camila Freitas Batista Bruna Parapinski Santos Luis Fernando Fernandes de Azevedo Eduardo Milton Ramos Sanchez Soraia Araújo Diniz Marcos Xavier Silva Jo?o Paulo Haddad Maiara Garcia Blagitz 《Veterinary research》2015,46(1)
The effects of bovine leukemia virus (BLV) on the immune response have been extensively investigated; however, its effects on mammary gland immunity are only speculative. Although BLV has a tropism for B cells, it can affect both adaptive and innate immunities because these systems share many effector mechanisms. This scenario is the basis of this investigation of the effects of BLV on mammary gland immunity, which is largely dependent upon neutrophilic functions. Thus, the present study sought to examine neutrophilic functions and the lymphocyte profile in the milk of naturally BLV-infected cows. The viability of the milk neutrophils and the percentage of milk neutrophils that produced reactive oxygen species (ROS) or phagocytosed Staphylococcus aureus were similar between BLV-infected and BLV-uninfected dairy cows. Furthermore, the expression of CD62L and CD11b by the milk neutrophils and the percentage of milk neutrophils (CH138+ cells) that were obtained from the udder quarters of the BLV-infected cows were not altered. Conversely, the median fluorescence intensity (MFI) representing intracellular ROS production and the phagocytosis of S. aureus, the expression of CD44 by the milk neutrophils and the percentage of apoptotic B cells were lower in the milk cells from BLV-infected dairy cows, particularly those from animals with persistent lymphocytosis (PL). The lymphocyte subsets were not different among the groups, with the exception of the percentage of CD5−/CD11b− B cells, which was higher in the milk cells from BLV-infected cows, particularly those with PL. Thus, the present study provides novel insight into the implications of BLV infection for mammary gland immunity. 相似文献
33.
Stewing of rice grains by steam after boiling in excess water can be used for cooking rice perfectly. The effects of this procedure in cooking of three varieties of Iranian rice (Sang Tarom, Domsiyah and Fajr) on textural and morphological properties of cooked rice grains were investigated. The results showed that this step in rice cooking reduced the hardness and increased the adhesiveness of rice grains significantly. By the use of the scanning electron microscopy, it was shown that the outer surface of cooked rice stewed by steam had less porosity and closer pores due to the modification during cooking, and better gelatinization and more expansion of starch granules compared to non-stewed samples. The use of this procedure in rice cooking to provide a fully cooked and gelatinized, softer and stickier final product is recommended. 相似文献
34.
35.
Google Earth® provides free access to satellite images and has been used in several areas that require cartographic information. The present study assessed the inconsistencies between geo-referencing of livestock premises by GPS and the acquisition of geographic coordinates by remote sensing (RS) images provided by Google Earth® in the Brazilian states of Bahia, Distrito Federal, Minas Gerais and Parana. The overall mean and standard deviation of the distances in the study were 30.98 ± 19.89 m. The mean distance differences between the two techniques were, for these states, 37.20 ± 19.75 m, 28.38 ± 17.38 m, 31.61 ± 15.72 m, 28.43 ± 24.30 m, respectively. Despite the fact that there is variation between the geo-referencing points using GPS and RS, geographical localization of health inspections should be useful as long as the errors between the results of the two methodologies are considered. 相似文献
36.
S.?A.?Haddad M.?A.?TabatabaiEmail author T.?E.?Loynachan 《Biology and Fertility of Soils》2017,53(2):153-158
Many farmlands are periodically flooded or ponded by excessive precipitation resulting in changes to soil chemical and biochemical properties. In this study, one set (eight treatments with four replications) of field-moist surface soils (0–15 cm) and their air-dried counterparts obtained from a long-term liming experiment were incubated at 30 °C under waterlogged conditions for 10 days, and the amounts of net NH4 +-N released (soluble and exchangeable) were determined after extraction with 4 M KCl. Another set of three surface soils were used to evaluate the effect of six heavy metals on the NH4 +-N release under waterlogged conditions. Results showed that increasing the liming rate from 0 to 17,930 kg ha?1 effective calcium carbonate equivalent increased the average soil pH from 4.98 to 7.06, averages of the amounts of NH4 +-N released ranged from 1.6 to 5.2 mg N kg?1 field-moist soil, and the corresponding amounts released in air-dried soils ranged from 18.9 to 32.9 mg N kg?1 soil. This increase of the amount NH4 +-N released in air-dried soil samples is presumably due to a slaking effect. At 5 mmol kg?1 soil, all six heavy metals inhibited the NH4 +-N released. The relative effectiveness of the heavy metals in inhibition of the NH4 +-N released varied among the three soils. Lead(II) was the most effective inhibitor of NH 4 +-N release in Clarion and Harps soils and Cd(II) in Harps soil. Cobalt(II), Cu(II), and Cd(II) were the least effective inhibitors of NH4 +-N release in Clarion, Harps, and Okoboji soils, respectively. 相似文献
37.
38.
Seham Haddad Ahmed E. Noreldin Basma Kamal Ahmed Abdeen Sameh M. Farouk Louise C. Abbott Mohamed Abdo 《Anatomia, histologia, embryologia》2019,48(5):404-414
Feral cats are considered as strays and are more likely to hunt in the street. We investigated the effect of environmental adaptations on the structures of lingual papillae in feral cats, which could be used as forensic evidence for their identification. There are no reported studies about the structural comparison of lingual papillae between suckling and adult feral cats. The present study described the lingual papillae of both suckling and adult cats macroscopically and microscopically via light and scanning electron microscopy. A total of nine tongue samples each for suckling and adult feral cats were examined grossly and histologically. Papillae distributions of suckling cats were similar to those observed in adult cats. Meanwhile, the shapes of those papillae were markedly different from that of corresponding papillae in adults. The change in taste bud position and size seemed to be related to the progressive growth of the papillae between adult and suckling cats; absence of taste buds in foliate papillae of feral cats at any stage; and marginal papillae which were a characteristic feature for all suckling cats. All previous elements could be affected by the specific feeding behaviour and mastication mode adaptation in suckling and adult feral cats which might help to identify suckling and adult feral cats among other breeds and animal species. We anticipate these findings may provide promising forensic evidence to discriminate between adult and suckling feral cat remains as well as prediction of environmental harshness and feeding behaviour. 相似文献
39.
Mrabet A Ferchichi A Chaira N Mohamed BS Baaziz Z Penny TM 《Pakistan journal of biological sciences: PJBS》2008,11(7):1003-1008
The date palm, Phoenix dactylifera, is a palm extensively cultivated for its edible fruit. The chemical composition and the water content of ten Tunisian date varieties were determined. For all analysis, the Deglet Nour variety was taken as reference. Compositional analysis showed that the littoral varieties were very rich in reducing sugars (26 to 51%) than Deglet Nour which was rich in sucrose (54%). The relative results of the moisture content showed that the littoral varieties were classified as soft dates. The vitamin C analysis showed that the littoral varieties were very rich in this compound (24 to 46 mg/100 g) than Deglet Nour (1.12 mg/100 g). The mineral analysis showed that the littoral dates were relatively rich in potassium (283 to 733 mg/100 g) and presented a weak content in sodium (0.06 to 0.09 mg/100 g). 相似文献
40.
Wahida Loucif-Ayad Azzedine Chefrour Moath Algharibeh Nizar Haddad 《Phytoparasitica》2013,41(4):445-447
Deformed wing virus (DWV) is reported for the first time in honeybee colonies in Algeria. 相似文献