Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Chlorinated Hydrocarbons in some Fishes from Jizan Area, Southern Red Sea
1
4
EN
Mohammed
Al-Mohanna
Department of Environmental Science, Faculty of Meteorology, Environment & Arid Land Agriculture,
King Abdulaziz University, Jeddah
drmalmohanna@yahoo.com
Three fish species were collected from Jizan area, Southern Red Sea, Saudi Arabia. These were Safi, Beda and Parrot. They were subjected to study the presence of chlorinated hydrocarbons in liver, muscle, gill, gut and kidney tissues of these species. Chlorinated pesticides and PCBs were examined y GC and GC-MS and quantification was achieved. The results showed the presence of these chemicals in studied species indicating minimum of 0.6 ng g dry wt to a maximum of 436 ng g dry wt. The highest level of chlorinated hydrocarbons was found in liver followed by kidney and gut tissues, while the lowest was found in muscle and gill tissues. The results revealed a certain degree of pollution which can be a risk to human and marine organisms. It is necessary to point out that this is the first attempt to measure the levels of chlorinated hydrocarbons in Red Sea fishes, therefore similar studies in Red Sea environment should be carried out in the near future in order to confirm the present results and to identify the sources of such contamination.
Fish-Red Sea-Pesticides-PCBs-Residues-Organs
https://cat.journals.ekb.eg/article_18364.html
https://cat.journals.ekb.eg/article_18364_a85b00aef78015369d16468eb64c8f4e.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Allelopathic management of the noxious weed; Phalaris minor Retz. growing in Triticum aestivum L. fields
5
17
EN
Amani
Abdel-Latif
Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
Salama
Mohamed
El-Darier
0000-0003-4702-1036
Faculty of Science, Alexandria University, Alex
salama_eldarier@yahoo.com
Ahlam
Khalifa
Karyouns University (Libya)
The present investigation aims to study the biological activity of different concentrations (10, 20 and 40%) of Deverra tortuosa (DTSCP) and Haplophyllum tuberculatum (HTSCP) shoot crude powder as well as a mixture (w/w) of both donor species on some growth parameters, some nutrients (N, P, K, Ca, Na, Mg, Fe, Mn and Zn), photosynthetic pigments, and protein profile of Triticum aestivum (crop species) and Phalaris minor (weed species) in pure and mixed cultures. In general the measured growth parameters (seedling fresh and dry weight, seedling shoot and root length and leaf area) were more affected in P. minor compared to T. aestivum. There was a significant decrease in the concentration of micronutrients as well as the total photosynthetic pigment contents of P. minor seedlings grown in both DTSCP and HTSCP. Furthermore, treatments with both donor species differentially affected protein expression of the two recipient species. New proteins have been expressed in the treated test plants as compared to controls. The expression of these new proteins could be explained on the basis that to neutralize the effect of allelochemicals produced by invasive plant powders on the treated test plants.
Deverra tortuosa,Haplophyllum tuberculatum,growth parameters,nutrient content,Photosynthetic pigments,SDS-PAGE
https://cat.journals.ekb.eg/article_18365.html
https://cat.journals.ekb.eg/article_18365_f765affc07948136c00d0ecf846f1276.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Hypoglycemic and Cytotoxic Effects of the Brown Alga Cystoseira Trinodis and the Blue-Green Alga Microcystis Aeruginosa Extracts
19
29
EN
Mohamed
Deyab
Botany Department, Faculty of Science, Damietta University, New Damietta, Egypt
Ahmed
El- Sayed
Botany Department, Faculty of Science, Damietta University, New Damietta, Egypt
Mamdouh
Abdel-Mogib
Botany Department, Faculty of Science, Damietta University, New Damietta, Egypt
Seham
Abu Ahmed
Botany Department, Faculty of Science, Damietta University, New Damietta, Egypt
snowwhite201443@yahoo.com
The present study aimed to determine the hypoglycemic, cytotoxic effects and phytochemical constituents of Cystoseira trinodis and Microcystis aeruginosa extracts. The GC-MS and 1H NMR analysis of C. trinodis and M. aeruginosa extracts revealed the presence of fatty acids, steroids, terpenoids and vitamins which may play an antidiabetic role. The cytotoxic effects of those extracts were tested on the tumor cell lines (HepG2) and the hypoglycemic effects were investigated in alloxan-induced hyperglycemic mice. Fasting blood glucose level showed significant decreased on days 1, 3, 10, 17, 24 and 31 groups treated with C. trinodis extract, compared to diabetic groups. The cytotoxic effect of C. trinodis petroleum ether extract displayed LD50 value of 112 mg/ml, while chloroform extract displayed LD50 value of 77 mg/ml. The two fractions of Microcystis aeruginosa had no cytotoxic effect on HepG2 cells.
antidiabetic,Cyanophyta,Cystoseira trinodis,Cytotoxicity,Microcystis aeruginosa,natural products,Phaeophyta,Phytochemical constituents
https://cat.journals.ekb.eg/article_18366.html
https://cat.journals.ekb.eg/article_18366_80359cb270e26a275cbef075e2815d74.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Effect of Collected Rainwater on Crop Growth in Greenhouses with in the Erbil Province of Iraq
31
43
EN
Jwan
Abdullah
Environment department, Collage of science, Salahaddin University
jwan4@outlook.com
Farhad
Aziz
Biology department science of education collage, Salahaddin University
This study examined the physical and chemical characteristics of rainwater from 15 sites in Kurdistan- Iraq between March and April 2009 and compared the growth of crop plants (Triticum duarium, Lens esculenta, Cicer arietinum and Bracica oleraceae) using rainwater. Results were analyzed using a factorial experiment which was replicated three times using a randomized design set-up. Results revealed that plant growth varied with 22.89 ± 3.54 cm recorded at the Bahirk’s village site and 5.33 ± 0.764 cm recorded at the Erbil Kirkuk road site, respectively. Fresh shoot dry weight ranged between 1.181 ± 0.054 gm and 0.023 ± 0.011gm; fresh root weight was between 1.38 ± 0.07 gm and root dry weight was 0.0519 ± 0.021 gm respectively. Determination of nutrient content of rainwater revealed that N-3, P-3, K+, and Na+ concentrations ranged between (6.98 - 3.53; 2.28 - 2.17; 106.51 - 38.41; and 19.55 - 12.94) mg/L, respectively. Results revealed that rainwater can be applied for agricultural purposes as plant characteristics and the nutrient content did not fundamentally change when compared with use of Tab water.
Rainwater,Chemical and Physical properties,plant height,fresh and dry weight,finally nutrients
https://cat.journals.ekb.eg/article_18367.html
https://cat.journals.ekb.eg/article_18367_17703e412d95a911addff846215f9720.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Floristic Composition and Vegetation Analysis and Species Diversity of Some Brassica Species Associates in North of Nile Delta Region, Egypt
45
52
EN
Ibrahim
Mashaly
Faculty of Science, mansoura university
iamashaly1950@yahoo.com
Mohamed
Abd El-Aal
Botany Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
Nazzar
Dawood
Botany Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
The present study was carried out to provide insight on the floristic composition, vegetation analysis and species diversity of associated flora of three common Brassica spp (Brassica rapa L., Brassica nigra (L.) Koch and Brassica tournefortii Gouan) communities in the North of Nile Delta of Egypt. In 60 surveyed stands, a total of 150 species belonging to 122 genera and related to 34 taxonomic families were recorded. Annual/therophytes-biregional taxa were the predomninates. Vegetation classification distinguished four vegetation groups named after the first and second dominant species. Group A: Cichorium endivia-Brassica nigra and represents the vegetation type of old field crops cultivated with clover and wheat, while group B: Polypogon monspeliensis- Rumex dentatus and represents winter field crops in old cultivated lands, edges of cultivation (canal banks) and roadsides. Group C: Brassica tournefortii- Cynodon dactylon and was characteristic for newly reclaimed lands, while group D: Echinops spinosus-Brassica tournefortii was found in the roadsides and sand formations habitat along the Deltaic Mediterranean coast of Egypt. The highest species diversity was mainly in groups D and C from roadsides and sand formations habitat and in the newly reclaimed lands. Edaphic factors especially sulphates, bicarbonates, maximum water-holding capacity, total phosphorus, silt, magnesium, potassium, potassium adsorption ratio, sand fraction and chlorides affect the distribution and abundance of the characteristic weeds species.
Brassica species,edaphic factors,Flora,TWINSPAN,and Vegetation
https://cat.journals.ekb.eg/article_18368.html
https://cat.journals.ekb.eg/article_18368_fc905234e98577abe0062b90969e4461.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Variation for Fruit Morphological, Chemical and Seed Physical Traits in Three Cucurbita pepo L. Genotypes
53
65
EN
Khalid
Abd El-Hamed
Department of Horticulture, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt
isaoscu@gmail.com
A collection of three genotypes belong to Cucurbita pepo L. (Family: Cucurbitaceae) representing both fruit-shape morphotypes; zucchini and pumpkin was observed and screened in field and laboratory trials during 2014 at Ismailia, Egypt. The goal of the present investigation was to characterize morphological and chemical variation among and within genotypes. Also, seeds of the three genotypes were evaluated for their dimensional and physical characteristics. A wide range of variability among genotypes was recorded for fruit morphological and chemical characteristics as well as seed dimensional and physical characteristics. Positive significant correlation coefficient values have been detected between most fruit morphological and chemical traits. Fruit length has shown the only negative correlation relation with soluble solid content (S.S.C.) and fruit firmness. Also, highly significant correlation coefficient values were obtained for seed dimensional and physical characteristics with exception for seed thickness and seed weight which showed non- significant or negative correlation relations. Analysis of variance results and F test showed highly significant results for all fruit morphological and chemical traits and for most seed dimensional and physical characteristics except for seed thickness and sphericity which showed non-significant F test. Current results support the development of breeding programs in C. pepo since high genetic variability in its germplasm has been found.
summer squash,Pumpkin- Genotypes characterization,Fruit firmness- S.S.C.- Ascorbic acid- Seed traits
https://cat.journals.ekb.eg/article_18369.html
https://cat.journals.ekb.eg/article_18369_1837a533c61913d6e9d1acae2f993d3e.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Spatial variation in long-term population change detection of Acacia tortilis subsp. raddiana in arid environment using RS and GIS
67
75
EN
Abdelrauf
Moustafa
0000-0001-6378-1949
Faculty of science, Suez Canal University, Ismailia
raoufmoustafa2@hotmail.com
Raafat
Abd El-Wahab
Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
Science Department, Faculty of Basic Education, Public Authority for Applied Education and Training, Adailiya 73251, Kuwait
raafat_hassan@yahoo.com
Tarek
seleem
Geology Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
Mohamed
Zaghloul
Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
Ayman
Abdel hamid
Environmental studies and Land use Department, National Authority for Remote Sensing and Space Sciences, Cairo, Egypt
Although Acacias are ecologically and culturally significant in arid environments, their mortality, recruitment and long-term change are poorly known. This study aims to quantify population change of the Acacia tortilis subsp. raddiana in South Sinai of Egypt in the period between 1968 and 2004. Remote sensing (RS) and geographic information systems (GIS) analyses of aerial photographs (1968) and high-resolution IKONOS images (2004) in combination with topographic maps (1987) and field data were used to estimate changes in abundance, density, and canopy area of A. tortilis. Changes were statistically significant and the overall trend in population size was negative. At some sites this negative trend is alarming because the reduction in mature trees was substantial (about 40-50%) and the recruitment was nearly absent. The continuity of this trend over time will endanger tree populations in the study area. Due to increasing the growth of Acacia trees, changes in canopy area of Acacia trees were positive in most of the study area. Absence of juveniles and clear reduction in small categories suggest that A. tortilis are suffering population decline. Aridity conditions may explain some of the observed pattern of mortality, however our results indicate that human disturbances, particularly over-cutting and over-grazing, are considered the main driving forces of these negative changes in South Sinai. Understanding trend of long-term changes, awareness and engagement of Bedouins are crucial to establish effective conservation and sustainable use strategy for A. tortilis in South Sinai.
Acacia tortilis,population change,Remote Sensing,GIS,Sinai
https://cat.journals.ekb.eg/article_18370.html
https://cat.journals.ekb.eg/article_18370_560971f3fe60fcf730535091af0a5757.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Invitro Heterosis for Osmotic Relative Tolerance in Wheat
77
93
EN
Eman
El-Sarag
Departement of Plant Production, Faculty of Environmental Agriculture Science, Al-Arish – Suez Canal University, Egypt
Mohammed
Battah
general organization for export and import control, Al-Arish, North Sinai, Egypt.
m_sayed_battah@yahoo.com
Hany
Hassan
Departement of Plant Production, Faculty of Environmental Agriculture Science, Al-Arish – Suez Canal University, Egypt
To predict early heterosis and inbreeding depression for some callus traits in 4 bread wheat hybrids produced from 7 parents, 2 different experiments were achieved by using tissue culture technique in order to study the response of the exposed populations to water stress due to adding mannitol to MS media. Thus, the 1st experiment was a preface to decide which concentration of 2 or 2.5 mg/l of 2,4 Dichloro phenoxy acetic acid hormone (2,4-D) beside 0.5 mg/l of naphthalene acetic acid (NAA) for each concentration, will be more suitable undertaken in this study. Consequently, regarding the 2nd experiment, the selected concentration was reliable to use in the main experiment, discriminations were callus induction % and callus fresh weight (mg) for the 1st one. While, for the 2nd which exhibited the effect of ascorbic acid (AsA) in the tolerance improvement to stress of the tested populations, callus growth index (CGI), Invitro tolerance (INTOL), relative tolerance percentage (Rt %) and reduction percentage (R%) were used as osmotic stress tolerance indices.
Bread wheat,Drought stress,mature embryo,osmotic relative tolerance,callus characters,Heterosis,inbreeding depression and potance ratio
https://cat.journals.ekb.eg/article_18371.html
https://cat.journals.ekb.eg/article_18371_8fbcc630229aa029d13f6d4c6d1452fc.pdf
Egyptian Society for Environmental Sciences
Catrina: The International Journal of Environmental Sciences
1687-5052
2090-2786
14
1
2015
11
01
Seasonal Abundance of the Important Scale Insects and Mealybugs and Their Natural
95
102
EN
Aida
Mokhtar
Plant Protection Research Institute, Agriculture Research Centre, Ismailia, Egypt
aida_hussien@yahoo.com
Saber
Moussa
Plant Protection Research Institute, Agriculture Research Centre, Ismailia, Egypt
Ahmed
Abo-Ghalia
Zoology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
Atef
Sayed
Plant Protection Research Institute, Agriculture Research Centre, Ismailia, Egypt
Certain aspects of scale insect and mealybugs’ population dynamics as well as their natural enemies infesting mango trees were studied throughout year 2013 in Ismailia Governorate, Egypt. The obtained data revealed the existence of two common scale insects were Aulacaspis tubercularis (Newstead), Kilifia acuminate (Signoret) and two mealybugs were Planococcus citri (Risso) and Icerya seychellarum (Westwood). The existence period of surveyed insects on mango trees covered all the year round. A. tubercularis showed the highest total mean values than others on 1st March (260.06 individuals/ branch), followed by P. citri that showed its highest total mean values on 1st May (149.28individuals/ branch), then I. seychellarum showed the highest total mean values on 1st April (124.58 individuals/ branch), and at last K. acuminate peaked on 15th May (72.78 individuals/ branch). The overall means of total number of scale insects predators recorded on the mango trees showed the highest values on 15th May (15.34 individuals/ branch), followed by scale insects parasitoids that showed its highest values on 1st September (2.46 individuals/ branch). Meanwhile, the predacious mites showed their highest values on 15th February (4.58 individuals/ branch).
scale insects,mealybugs,natural enemies,mango trees,Egypt
https://cat.journals.ekb.eg/article_18372.html
https://cat.journals.ekb.eg/article_18372_d1010a7c473a598b6eeab0b5f4a12ff3.pdf