eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
156
161
6991
Somatic Embryogenesis: An Alternative Method for in vitro Micropropagation
Sobri Hussein
sobri@nuclearmalaysia.gov.my
1
Rusli Ibrahim
2
Anna Ling Pick Kiong
3
Agrotechnology and Bioscience Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia
Agrotechnology and Bioscience Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia
Department of Bioscience, Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, 53300 Setapak, Kual Lumpur, Malaysia
Plant tissue culture is an alternative method of commercial propagation and is being used widely for the commercial propagation of a large number of plant species, including many medicinal plants. Somatic embryogenesis is a process by which asexual or somatic cells are induced to form embryos in culture. Somatic embryogenesis is a multi-step regeneration process starting with formation of pro-embryogenic masses, followed by somatic embryo formation, maturation and regeneration. This paper outlined the important processes involved in the somatic embryogenesis.
https://www.ijbiotech.com/article_6991_c81352eff53384a6d70a98efe2805e92.pdf
Somatic Embryogenesis
Micropropagation
Somatic embryo
Regeneration
Plant tissue culture
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
162
168
6990
Cloning and Expression of Recombinant Camelid Single-Domain Antibody in Tobacco
Ahmad Ismaili
ahmad_ismaili@yahoo.com
1
Mokhtar Jalali Javaran
m_jalali@modares.ac.ir
2
Mohammad Javad Rasaee
rasaee_m@modares.ac.ir
3
Fatemeh Rahbarizadeh
rahbarif@modares.ac.ir
4
Hamid Rajabi Memari
hamidmemary@gmail .com
5
Department of Plant Breeding, Faculty of Agriculture, Tarbiat Modares University, P.O. Box 14115-143, Tehran, IR Iran
Department of Plant Breeding, Faculty of Agriculture, Tarbiat Modares University, P.O. Box 14115-143, Tehran, IR Iran
Department of Medical Biotechnology, Faculty of Medical Science, Tarbiat Modares University, P.O. Box 14115-331, Tehran, IR Iran
Department of Medical Biotechnology, Faculty of Medical Science, Tarbiat Modares University, P.O. Box 14115-331, Tehran, IR Iran
Department of Plant Breeding, Faculty of Agriculture, Tarbiat Modares University, P.O. Box 14115-143, Tehran, IR Iran
Antibodies provide a suitable tool in fundamental research and their high affinity and specificity make them invaluable for diagnostic and therapeutic applications. A promising alternative to conventional antibodies are the heavy chain antibodies (VHH) of Camelidae having short length, high solubility and stability are preferred to other antibody derivatives. In this study, our goal was production of recombinant VHH antibody fragments (against cancer associated mucin, MUC1) in tobacco plants. The VHH gene cDNA was cloned in TA vector and then subcloned into a plant expression binary vector pBI 121. The VHH gene was inserted into the plant genome by agrobacterium-mediated transformation. The presence of VHH gene in transformed plants was confirmed by PCR. Western blot analysis showed that the recombinant VHH protein was expressed in tobacco plant. ELISA results with MUC1 antigen confirmed that the biological activity and antigen-specific responses of the plant derived VHH protein compare favorably with that of the parent recombinant antibodies. This is the first report of production of camelied VHH antibody against tumor specific antigen from two-humped camel (Camelus bactrianus) in plants.
https://www.ijbiotech.com/article_6990_2c83bd47930cc6904346680eac6aaae7.pdf
VHH Antibody
Camelidae
Tobacco
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
169
173
6992
RNAi Induced Inhibition of MRP1 Expression and Reversal of Drug Resistance in Human Promyelocytic HL60 Cell Line
Masoud Golalipour
1
Frouzandeh Mahjoubi
frouz@nigeb.ac.ir
2
Mohammad Hossein Sanati
m-sanati@nigeb.ac.ir
3
Department of Genetics, Natinal Institute of Genetic Engineering and Biotechnology (NIGEB),P.O. Box 14965-161, Tehran, IR Iran
and
2Department of Molecular genetics, Faculty of Science, Tarbiat Modares University, P.O. Box 14115-331, Tehran, IR Iran
Department of Genetics, Natinal Institute of Genetic Engineering and Biotechnology (NIGEB),P.O. Box 14965-161, Tehran, IR Iran
Department of Genetics, Natinal Institute of Genetic Engineering and Biotechnology (NIGEB),P.O. Box 14965-161, Tehran, IR Iran
Multidrug resistance (MDR) is a complex phenomenon in which many different genes regulating drug transport, cellular repair, detoxification and drug metabolism are involved. Nevertheless, in most drug resistant cell lines and cancer patients up-regulation of ABC-transporter genes such as MDR associated Protein (MRP1) gene could be at the basis of the drug resistance phenotype. We aimed to decrease MRP1 expression at the mRNA level to modulate drug resistance phenotype in the methotrexate-resistant HL60 cell line. We designed a small interfering RNA (siRNA) molecule against MRP1 and applied it to HL60 cell line in a 0 to 72 hours time range. siRNA could specifically inhibit gene expression by 80% of the initial mRNA level with in 36 to 48 hours. The siRNA-treated cells demonstrated 100-fold reduction in methotrexate (MTX) resistance compared to untreated cells. The data indicate that this approach may be applicable to the study of MRP1 expression and development of future strategies to reverse the MRP1 dependent drug-resistance phenotype in tumors back to a drug-sensitive one.
https://www.ijbiotech.com/article_6992_da4bfab507eb614972b38f753336c8af.pdf
Multidrug Resistance
protein 1
siRNA
HL60
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
174
179
6976
Detection and Genotyping of Hepatitis D Virus from HBsAg Positive Patients in Iran Using RT-PCR
Leila Shahinsaz
1
Farzaneh Sabahi
sabahi_f@modares.ac.ir
2
Mohsen Karimi
3
Farida Behzadian
m.aliakbari90@yahoo.com
4
Seyed Moayed Alavian
5
Vahid Zand
6
Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box 14115-331, Tehran, I.R. Iran
Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box 14115-331, Tehran, I.R. Iran
Biotechnology Research Center, Pasteur Institute of Iran, Pasteur square, Tehran, I.R. Iran 3Tehran Hepatitis Center, Vesal Avenue, Tehran, I.R. Iran 4Hepatitis Clinic, Special Disease Center, Kerman, IR Iran
Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box 14115-331, Tehran, I.R. Iran
Tehran Hepatitis Center, Vesal Avenue, Tehran, I.R. Iran
Hepatitis Clinic, Special Disease Center, Kerman, IR Iran
Hepatitis Delta virus (HDV) is a degenerate RNA virus or virusoid and a satellite of Hepatitis B virus (HBV). Three distinct genotypes are described for HDV; genotype I is distributed worldwide but other genotypes appear to be more restricted geographically. In the present study, an RT-nested PCR method was set up to detect delta infection from serum samples. Moreover, the target amplified sequences corresponding to the Hepatitis delta antigen (HDAg) C-termini were used for genotyping. The results showed that 63.6% (23 of 36) of (HDAb) positive serum samples (as determined by ELISA) were also positive for HDV-RNA. Sequencing and phylogenic analysis of three Iranian HDV isolates revealed the most homology (93%) with an Italian isolate indicating a close relationship and probably a common origin for these isolates.
https://www.ijbiotech.com/article_6976_eb77294d2658b69d0d7cb4bd55115ca7.pdf
Hepatitis Delta virus
RT-PCR
phylogenetic tree
sequencing
Iran
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
180
187
6993
Cadmium, Nickel and Vanadium Accumulation by Three Strains of Marine Bacteria
Ravanbakhsh Shirdam
shirdamr@yahoo.fr
1
Anita Khanafari
khanafari_a@yahoo.com
2
Azam Tabatabaee
3
Department of Environment, Environmental Research Center, Laboratories Affairs Bureau, Pardisan Park, Hemmat highway, P.O. Box 14155-7383, Tehran, IR Iran
Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O. Box 14155-775, Tehran, IR Iran
and
3 Department of Microbiological Sciences, The North Tehran Branch, Islamic Azad University, P.O. Box 19735-148, Tehran, IR Iran
Department of Environment, Environmental Research Center, Laboratories Affairs Bureau, P.O. Box 14155-7383, Tehran, IR Iran
and
2 Department of Marine Biology, Science and Research Branch, Islamic Azad University, P.O. Box 14155-775, Tehran, IR Iran
Three marine bacteria, Pseudomonas putida PTCC 1664, Bacillus cereus PTTC 1665 and Pseudomonas pseudoalkaligenes PTCC 1666 isolated from the East Anzali wetland sediments of the Caspian Sea, were resistant to heavy metals of Cadmium (Cd), Nickel (Ni) and Vanadium (V). Pseudomonas pseudoalkaligenes PTCC 1666 was found to be resistant to all 3 metals Ni, Cd, V. Heavy metal uptake was determined in both the biomass and supernatant by the Atomic Absorption Spectrophotometer (AAS). These bacteria showed enhanced absorption and growth in the presence of Cd and Ni at 80-100 mg/l and V at 40 mg/l concentrations. The high uptake of Cd, Ni and V was directly proportional to their respective concentrations, 5-100 mg/l for Cd and Ni and 5 - 40 mg/l for V. The maximum amount of heavy metal uptake occurred during stationary phase when cells were incubated at 30°C for 72h. The results revealed that these bacteria accumulated approximately 40-50% Cd, 5-6% Ni and 10-12% V. Bacterial cells Immobilized in alginate gel showed more efficiency in biosorbing heavy metals than free cells (80%). Scanning Electron Microscopy (SEM) results indicated that the marine bacteria were capable of accumulating several metals, showing that the isolated bacterial strains can be used as potential candidates for bioremediation, with respect to Cd, Ni and V removal from aqueous effluents.
https://www.ijbiotech.com/article_6993_f5f09b3b8bf3b1a7f627415a484c4206.pdf
Bioremediation
Marine bacteria
Cadmium
nickel
Vanadium
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
188
192
6994
Calpastatin Polymorphism and Its Association with Daily Gain in Kurdi Sheep
Mohammad Reza Nassiry
m_nassiry@yahoo.com and nassiryr@um.ac.ir
1
Mojtaba Tahmoorespour
2
Ali Javadmanesh
3
Mahdi Soltani
4
Saheb Foroutani Far
5
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, I.R. Iran
Association of genetic polymorphism in the calpastatin (CAST) gene with average daily gain was examined in Iranian purebred Kurdi sheep. The genotypes for CAST were determined by the PCR-SSCP method. Blood samples were collected from 84 purebred Kurdi sheep belonging to the Kurdi Breeding Station located in the Khorasan province, north-east of Iran. Extraction of genomic DNA was based on the Guanidinium Thiocyanate-Silica gel method. Three genotypes including aa, ab and ac with frequencies of 0.55, 0.32 and 0.13, were observed in this population. Chi-square test confirmed Hardy-Weinberg equilibrium for the CAST loci. Average heterozygosity (37%) of the CAST locus for Kurdi sheep was slightly low. Daily gain birth to weaning (GBW); weaning to six months (GWS); six to nine months (GSN) and nine to yearling (GNY) were analyzed by a statistical model comprising SSCP (Single strand conformation polymorphism) and significant effect (P<0.05) of CAST genotypes was observed for GBW only.
https://www.ijbiotech.com/article_6994_40ef600d702f11adb0fa67de34e0367d.pdf
Calpastatin
Polymorphism
Kurdi Sheep
daily gain
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
193
196
6996
Hydrogen Oxidizing Bacteria as Poly(hydroxybutyrate) Producers
Kianoosh Khosravi Darani
kiankh@yahoo.com
1
Ebrahim Vasheghani-Farahani
2
Kenji Tanaka
3
National Nutrition and Food Technology Research Institute, Shahid Beheshti Medical University, P.O. Box 19395-4741, Tehran, IR Iran
Department of Biotechnology, Faculty of Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, IR Iran
Department of Food Science and Technology, Faculty of Agriculture, Kyushu University, 46-09 Hakozaki, Higashi-ku, Fukuoka 812, Japan
Batch culture of Ralstonia eutropha using the recycled gas closed circuit culture system was conducted in order to develop a practical fermentation system for industrial autotrophic culture for poly (hydroxybutrate) production. The gas phase of the culture system consisted of substrate gas so that gases in this culture could be recycled as long as the amount of the gas consumed would be replenished. All gases supplied into this system could be completely used without any loss as exhaust. Studies on the effect of oxygen concentration showed that high concentration of this gas suppressed the specific growth rate while a low oxygen concentration promoted it.
https://www.ijbiotech.com/article_6996_4270634c6c4a43fa8e123c2561a0458f.pdf
Chemolithoautotroph
Gaseous substrate
Hydrogen oxidizing bacteria
Poly (b-hydroxybutyrate)
Ralstonia Eutropha
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
197
200
6972
Polymorphism of Bovine Lymphocyte Antigen DRB3.2 in Holstein Bulls of Iran Using PCR-RFLP
Maryam Parnian
1
Seyed Ali Ghorashi
alig@nigeb.ac.ir
2
Morteza Pashmi
3
Mohammad Reza Mollasalehi
4
Department of Animal Science, Aboureyhan Campus, Tehran University, P.O. Box 11365-4117, Tehran, I,R. Iran
and
2 National Institute for Genetic Engineering and Biotechnology, P.O. Box 14965-161, Tehran, I.R. Iran
National Institute for Genetic Engineering and Biotechnology, P.O. Box 14965-161, Tehran, I.R. Iran
Department of Animal Science, Abhar Azad University, P.O. Box 22, Abhar, I.R. Iran
and
National Institute for Genetic Engineering and Biotechnology, P.O. Box 14965-161, Tehran, I.R. Iran
Animal Breeding Center, Karaj, I.R. Iran
The Holstein bulls (n=50) were genotyped for bovine lymphocyte antigen (BoLA-DRB3.2) alleles by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP). Genomic DNA was extracted from bull semen using phenol-chloroform method. A two-step PCR was conducted in order to amplify a 284 base-pair fragment of the target gene. Amplicons were digested by RsaI, HaeIII and BstyI restriction endonuclease enzymes. Digested fragments were electrophoresed on 8% polyacrylamide gel and visualized after silver staining. Seventeen BoLA-DRB3.2 alleles were identified with frequencies ranging from 1 to 21%. Sixteen alleles were similar to those reported previously and one was a new allele which has not been reported before. The frequencies of alleles BoLA-DRB3.2 *3, *8, *10, *11, *12, *13, *15, *16, *21, *22, *23, *24, *28, *51, *iaa, *ibb, *qbb were 2, 9, 2, 14, 1, 2, 4, 10, 1, 14, 5, 21, 6, 6, 1, 1, and 1%, respectively. The seven most frequent alleles (BoLA-DRB3.2 *8, *11, *16, *22, *24, *28, *51) accounted for 80% of alleles in the investigated population. This data indicate that the BoLA-DRB3.2 locus is highly polymorphic in Holstein bulls of Iran.
https://www.ijbiotech.com/article_6972_4cb2fff6b91db269f68693e8b1e82880.pdf
Bovine Lymphocyte Antigen
PCR
RFLP
Holstein Bulls
eng
National Institute of Genetic Engineering and Biotechnology of Iran
Iranian Journal of Biotechnology
1728-3043
2322-2921
2006-07-01
4
3
201
203
6986
Genetic Polymorphism of the Melatonin Receptor 1A Locus in Iranian Shall and Karakul Sheep
Heydar Ghiasi
heidar958@yahoo.com
1
Mohamad Reza Nasiry
nassiryr@um.ac.ir
2
Ali Reza Heravi Mousavi
3
Abdol Azim Mousavizadeh
4
Ali Javadmanesh
5
Department of Animal Science, Faculty of Agricclture, Ferdowsi University of Mashhad, P.O. Box 91775-116, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agricclture, Ferdowsi University of Mashhad, P.O. Box 91775-116, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agricclture, Ferdowsi University of Mashhad, P.O. Box 91775-116, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agricclture, Ferdowsi University of Mashhad, P.O. Box 91775-116, Mashhad, I.R. Iran
Department of Animal Science, Faculty of Agricclture, Ferdowsi University of Mashhad, P.O. Box 91775-116, Mashhad, I.R. Iran
The genotypes of the melatonin receptor 1A (MTNR1A) were determined by PCR-RFLP in the native Iranian Shall and karakul breeds of sheep . Blood samples were collected from 60 karakul and 50 Shall breeds. Genomic DNA was extracted based on the Guanidin Thiocyanate-slica gel method. After PCR reaction, PCR products were digested by the Mnl1 restriction enzyme. The MTNR1A locus had two genotypes with frequencies of 0.7 (+ +) and 0.3 (+ -) in the Karakul breed, 0.58 (+ +) and 0.42 (+ -) in the shall breed. Heterozygosis value for the MTNR1A locus in Shall and Karakul breeds were 0.42 and 0.3, respectively.This study provided evidence that sheep breeds, Shall and Karakul have variability in MTNR1A locus. Therefore, this locus can be used as a marker for the reproduction trait in selection programs.
https://www.ijbiotech.com/article_6986_07acbe9043b285f4972788c1a38d68df.pdf
MTNR 1A
Seasonal reproductive
Melatonin
Polymorphism
Shall and Karakul sheep