Al-Azhar University, Faculty of Science (Boys)
Al-Azhar Bulletin of Science
1110-2535
2636-3305
18
Issue 2-C
2007
12
01
DEVELOPMENTAL AND MORPHOGENIC RESPONSES OF SCHISTOCERCA GREGARIA (ORTHOPTERA: ACRIDIDAE) TO THE JUVENOID PYRIPROXYFEN (S- 31183).
59
81
EN
K.
S.
GHONEIM
Department of Zoology. Faculty of Science. Al-Azhar University.
kar_ghoneim@yahoo.com
A.
G.
AL-DALI
Department of Zoology. Faculty of Science. Al-Azhar University.
R.
F.
BAKR
Department of Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt.
M.
A.
TANANI
Department of Zoology. Faculty of Science. Al-Azhar University.
A.
S.
BREAM
Department of Zoology. Faculty of Science. Al-Azhar University.
10.21608/absb.2007.11610
To investigate the effects of Pyriproxyfen (S-31183) on the growth, development and morphogenesis of the desert locust <em>Schislocerca gregaria</em>, five concentration levels (1000, 500, 250, 125 and 62.5 ppm) were given through the fresh clover leaves as food to nymphs of three developmental ages: newly moulted penultimate <em>(4<sup>th</sup></em>) instar, newly moulted last <em>(5<sup>th</sup></em>) instar and late-aged last in star. All results were obtained 24 h after feeding.
Pyriproxyfen exhibited a remarkable inhibitory effect on the nymphal growth and consequently nymphs were prevented to obtain more than one-third of weight gain of control congeners at the highest concentration level. Also, the developmental rate was increasingly depressed as the concentration level was increased, almost, in all treatments. The controls had the fastest developmental rate among all nymphs.
The adult females were hindered to emerge proprtionally to the increasing concentration level of Pyriproxyfen. Moreover, some adults were completely prevented to emerge after treatment of the penultimate instar nymphs with the highest concentration level. In addition, Pyriproxyfen exerted a profound action on the adult morphogenesis. The degree of adult deformation was dose-dependent after treatment of the newly moulted <em>4<sup>th</sup> </em>or <em>5<sup>th</sup> </em>instar nymphs. After treatment of these nymphs, also, the adult longevity was elaborately shortened while the treatment of late-aged <em>5th </em>instar nymphs resulted in an insignificant prolongation of the adult longevity.
Schistocerca gregaria,Pyriproxyfen,Growth,Development,metamorphosis,morphogenesis,emergence,longevity
https://absb.journals.ekb.eg/article_11610.html
https://absb.journals.ekb.eg/article_11610_e45f70e55fd084f0e74de87062552812.pdf
Al-Azhar University, Faculty of Science (Boys)
Al-Azhar Bulletin of Science
1110-2535
2636-3305
18
Issue 2-C
2007
12
01
HISTOPATHOLOGICAL AND ULTRASTRUCTURAL CHANGES IN SOME TISSUES OF THE DESERT LOCUST SCHISTOCERCA GREGARIA BY THE JUVENOID PYRIPROXYFEN.
83
98
EN
K.
S.
GHONEIM
Department of Zoology. Faculty of Science. Al-Azhar University.
kar_ghoneim@yahoo.com
A.
G.
AL-DALI
Faculty of Science. Al-Azhar University.
R.
F.
BAKR
Faculty of Science, Ain Shams University, Cairo, Egypt.
M.
A.
TANANI
Faculty of Science. Al-Azhar University.
A.
S.
BREAM
Faculty of Science. Al-Azhar University.
10.21608/absb.2007.11622
After treatment with Pyriproxyfen, the nymphal cuticle appeared as an amorphous layer and the epidermis was irregularly distributed underneath the cuticle. A loss of large amounts of the epidermal cells was recorded.
Pyriproxyfen treatments affected the ultrastructural configuration of thoracic muscles such as disrupted organization of A, I and H bands and the degeneration of Z disc varied from one half of the disc to small central or peripheral degenerated areas. Generally, Pyriproxyfen caused swelling and enlargement of microvilli and disappearance of the normal size and shape of the epithelial cells.
Regarding to the action of Pyriproxyfen on the ultrastructure of the intracellular organelles, some mitochondria partially or totally lost their cristae while other mitochondria were enlarged with prominent cristae. Lysosomes and Golgi bodies disappeared. The nucleus had an irregular shape and large amounts of nuclear chromatin were aggregated into numerous masses.
Schistocerca gregaria,Pyriproxyfen,nymphal instar,Ultrastructure,histopathology,integument,Muscles,mid gut,mitochondria,lysosomes,Golgi bodies,nuclear membrane,cytoplasm
https://absb.journals.ekb.eg/article_11622.html
https://absb.journals.ekb.eg/article_11622_d41d8cd98f00b204e9800998ecf8427e.pdf
Al-Azhar University, Faculty of Science (Boys)
Al-Azhar Bulletin of Science
1110-2535
2636-3305
18
Issue 2-C
2007
12
01
ISOLATION AND CHARACTERIZATION OF ACTINOMYCETE STRAIN RELATED TO GENUS STREPTOMYCES AND STUDY THE ACTIVE SUBSTANCE THAT PRODUCED
1
24
EN
M.
ATTA
HOUSSAM
Botany and Microbiology Dept. Faculty of science (Boys); Al-Azhar University, Cairo, Egypt.
BAHGAT
M.
REFAAT
Botany and Microbiology Dept. Faculty of science (Boys); Al-Azhar University, Cairo, Egypt.
EHAB
S.
SABRA
Microbiologest of biotechnology center-Search-development & quality control Sector-Eipico, Cairo, Egypt.
10.21608/absb.2007.11626
An actinomycete culture could be isolated from a soil sample collected from Bani-Swife governorate, Egypt. The isolate AZ-B2 produced a wide spectrum antibiotic (anti-Gram-positive and Gram-negative bacteria). The isolate AZ-B2 matches with <strong><em>Streptomyces griseoviridis</em></strong> in the morphological, physiological and biochemical characters. Thus, it was given the suggested name<em>Streptomyces griseoviridis</em><em>.</em>The parameters controlling the biosynthetic process of antibacterial agent formation including different pH values, different temperatures, different incubation period, and different carbon and nitrogen sources were fully investigates.
The separation of the active ingredient and its purification was performed using both thin layer chromatography (TLC) and column chromatography (CC) techniques. The physico-chemical characteristics of the purified antibiotic viz. color, melting point, solubility, elemental analysis, spectroscopic characteristics and chemical reactions have been investigated. This analysis indicates a suggested imperical formula of<em>C<sub>18</sub>H<sub>36</sub>N<sub>4</sub>O<sub>11</sub></em>. The minimum inhibition concentrations "MICs" of the purified antibiotic were also determined. The collected data emphasized the fact that the purified antibiotic compound was suggestive of being belonging to Aminocyclitol group (Kanamycin A antibiotic) produced by <em>Streptomyces griseoviridis</em>, AZ- B2
ACTINOMYCETE STRAIN,GENUS STREPTOMYCES
https://absb.journals.ekb.eg/article_11626.html
https://absb.journals.ekb.eg/article_11626_143728d771130e5d98f1a9bdcf745c8a.pdf
Al-Azhar University, Faculty of Science (Boys)
Al-Azhar Bulletin of Science
1110-2535
2636-3305
18
Issue 2-C
2007
12
01
EFFECT OF CERIUM AND CADMIUM IN LIQUID RADIOACTIVE WASTES ON THE MORPHOLOGY, PROTEINS, CARBOHYDRATES AND NUCLEIC ACIDS CONTENTS OF THE AQUATIC PLANT LUDURIGIA STOLONIFERA
25
35
EN
S.
ABDALLA
Protection and Radiation Safety Dept., Hot Labs. Center, Atomic Energy Authority, Cairo, Egypt.
E.
M.
MAHDY
Faculty of Science, Helwan Univ., Helwan, Cairo, Egypt.
M.
S.
SOLIMAN
Faculty of Science, Helwan Univ., Helwan, Cairo, Egypt.
D.
S.
RAMADAN
Protection and Radiation Safety Dept., Hot Labs. Center, Atomic Energy Authority, Cairo, Egypt.
10.21608/absb.2007.11631
Aquatic plant <em>Ludurigia stolonifera</em> is used to absorb two toxic ions (Cd and Ce) from low level radioactive waste solutions. The effects of these toxic ions with three concentrations on the morphology, carbohydrates, proteins and nucleic acids (DNA, RNA) contents of the plant were studied. The results obtained in the present investigation showed a decrease in the weight of the plant, proteins, carbohydrates and nucleic acids contents with the increase in the concentration of toxic ions.
Cerium,cadmium,RADIOACTIVE WASTES
https://absb.journals.ekb.eg/article_11631.html
https://absb.journals.ekb.eg/article_11631_381194e1bb33f480f7c99539fe5bafac.pdf
Al-Azhar University, Faculty of Science (Boys)
Al-Azhar Bulletin of Science
1110-2535
2636-3305
18
Issue 2-C
2007
12
01
BACTERIOLOGICAL SYSTEMS AS A NEW APPROACH FOR DESALINATION OF SALTY WATER
37
58
EN
R.
A.
BAYOUMI
Botany and Microbiology Dept., Faculty of Science(Boys), Al-Azhar University, Madinet Nasr , Cairo, Egypt. P.N. 11884.
S.
S.
LOUBOUDY
Botany and Microbiology Dept., Faculty of Science(Boys), Al-Azhar University, Madinet Nasr , Cairo, Egypt. P.N. 11884.
M.
S.
EL-GAMAL
Botany and Microbiology Dept., Faculty of Science(Boys), Al-Azhar University, Madinet Nasr , Cairo, Egypt. P.N. 11884.
M.
A.
ABDELWAHED
Botany and Microbiology Dept., Faculty of Science(Boys), Al-Azhar University, Madinet Nasr , Cairo, Egypt. P.N. 11884.
10.21608/absb.2007.11633
Forty eight halotolerant microbial isolates were isolated from water and soil samples collected from Mediterranean sea (Alexandria), Ein-Helwan (Helwan), Red Sea (Hurghada), and Qarun lake (El-Fayoum). Soil samples were collected from Alexandria, Ein-Helwan, Qaron, El-Toor, and Sant-Katren. Three halotolerant bacterial isolates were chosen as the most potent halotolerant bacterial isolates for bacterial desalination of sea water. These isolates were identified as <em>Sporohalobacter marisomartui </em>BEW45, <em>Marinococcus hispanicus </em>BEW47 and <em>Halomonas elongata </em>BAW48. Combination of the three potent halotolerant bacterial isolates exhibited high desalination percentage. The highest desalination percentage (%) was achieved at 37 ºC, pH 6, for168 h., inoculum size 2.5 ml (each ml contain 67 x 10<sup>7</sup> cells, CFU), no tested carbon sources and yeast extract as best nitrogen source. The best bacterial desalination of sea water was performed by repeated recycling the sea water three times, by subjecting water to there potent halotolerant bacterial strains. The desalination percentage (%) of Ca<sup>++</sup>, Mg<sup>++</sup>, Cl<sup>-</sup>, Na<sup>+</sup> and K<sup>+</sup> reached up to 88, 78, 79, 76 and 63% respectively. The resulted desalinated sea water was used in irrigation of <em>Hordeum vulgare </em>Giza 2. This study recommend the possibility of the selected strains to desalinate of salty water by designing of desalination plants similar to wastewater treatment plants to be used in irrigation of some economic crops and woody forest trees.
BACTERIOLOGICAL SYSTEMS,Desalination
https://absb.journals.ekb.eg/article_11633.html
https://absb.journals.ekb.eg/article_11633_b4b37202ee2b0f11356edc64f3cd0a4f.pdf
Al-Azhar University, Faculty of Science (Boys)
Al-Azhar Bulletin of Science
1110-2535
2636-3305
18
Issue 2-C
2007
12
01
COMPARATIVE MORPHOLOGICAL AND ANATOMICAL STUDIES OF LANTANA (VERBENACEAE)
99
110
EN
AMAAL
H.
MOHAMED
Botany Dept. Faculty of Science (Girls), Al-Azhar University, Cairo, Egypt.
ALI
A.
HAMMOUDA
Flora and Phytotaxonomy Researches, Horticultural Research Institute, Agricultural Research Centre, Ministry of Agriculture, Dokki, Giza 12618, Egypt.
MOHAMED
A.
SOLIMAN
Flora and Phytotaxonomy Researches, Horticultural Research Institute, Agricultural Research Centre, Ministry of Agriculture, Dokki, Giza 12618, Egypt.
10.21608/absb.2007.11635
A comparative anatomical and morphological observation was conducted on <em>Lantana camara</em> L., <em>L. viburnoides </em>(Forssk.)Vahl, <em>L. hispida</em> H.P.K. and <em>L. montevidensis </em>(Spreng.) Briq. The variation in vegetative and floral morphology as well as diversity of anatomical features besides level and shape of stomata and types of trichome supports the definition of each studied species. Two artificial keys based on these characters were designed.
Lantana,identification,Morphology,anatomy,stomata,trichomes
https://absb.journals.ekb.eg/article_11635.html
https://absb.journals.ekb.eg/article_11635_d41d8cd98f00b204e9800998ecf8427e.pdf