Dr. Mohamed Hazman
Agricultural Genetic Engineering research Institute (AGERI),
Agricultural Research Centre (ARC), Giza, Egypt.
- Doktor rerum naturalium (Doktor der Naturwissenschaften), 2014, Doctor of Bioscience, Very good, Honor degree. Faculty of Chemistry and Bioscience, Karlsruhe Institute for Technology (KIT), Germany. Thesis title: Adaptation to salt stress in rice: How jasmonates contribute to the response to high salinity.
- Faculty of Science, 2007, Biochemistry Section, Chemistry Department, Faculty of Science, Tanta University, Egypt. Thesis Title: ''Development of an Efficient Regeneration and Transformation System in some Egyptian Cultivar(s) of Barley (Hordeum vulgare L.)".
- B.Sc,1998,very Good, Honor degree, Biochemistry Section, Chemistry Department, Faculty of Science, Tanta University, Egypt.
Area of Interest:
In nature there is nothing for free. Unlike animals, plants cannot scream or run away from threatening stresses, so adaptation is a must to survive. I am interested in studying how plants can adapt to unfavourable environmental conditions. I prefer to study stress physiology using biochemical and molecular approaches.
- Mohamed Hazman, Bettina Hause,Elisabeth Eiche, Peter Nick, Michael Riemann. Increased tolerance to salt stress in OPDA-deficient rice ALLENE OXIDE CYCLASE mutants is linked to an increased ROS-scavenging activity. Journal of Experimental Botany. doi:10.1093/jxb/erv142. IF: 5.794
- Nahed Abdel Ghafar A.Ibrahim, Mohamed Youssef and Mohamed Nabil A.Omar (2014) Rapid detection of pathogenic bacteria in vegetables and fruits in Egyptian Farms. The Journal of American science, 10 (09), 242-252. IF:1.17
- Ebtissam H.A. Hussein, M.A. Sakran,M.Y.Hazman . A.S.E Haider, and A.M El-Wassief.(2010). Development of an efficient regeneration system for Egyptian barley cultivars (Hordeum vulgar L.). Egypt. J. Genet. Cytol., 39, 259-270.
Last paper abstract:
Salinity stress represents a global constraint for rice, the most important staple food worldwide. We therefore analysed the role of the central stress signal jasmonate for the salt response in rice comparing the responses to salt stress for two jasmonic acid (JA) biosynthesis rice mutants (cpm2 and hebiba) impaired in the function of ALLENE OXIDE CYCLASE (AOC) and their wild type. The aoc mutants were less sensitive to salt stress. Interestingly, both mutants accumulated smaller amounts of Na+ ions in their leaves, and showed better scavenging of reactive oxygen species (ROS) under salt stress. Leaves of wild type and JA-mutants accumulated similar levels of abscisic acid (ABA) under stress conditions, and the levels of JA and its amino acid conjugate, JA-isoleucine (JA-Ile), showed only subtle alterations in the wild type. In contrast, the wild type responded to salt stress by strong induction of the JA precursor 12-oxophytodienoic acid (OPDA), which was not observed in the mutants. Transcript levels of representative salinity-induced genes were induced less in the JA-mutants. We interpret the data in a model, where the absence of OPDA enhanced the antioxidative power in mutant leaves.
Key words: 12-oxophytodienoic acid (12-OPDA), ALLENE OXIDE CYCLASE (AOC), jasmonate, Oryza sativa, oxidative stress, reactive oxygene species (ROS), salinity