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Sumera Afzal Khan,Muhammad Hamayun,Soon-Ok Rim(임순옥),In-Jung Lee(이인중),Jong-Chul Seu(서종철),Yeon-Sik Choo(추연식),Ing-Nyol Jin(진익렬),Sang-Dal Kim(김상달),In-Koo Lee(이인구),Jong-Guk Kim(김종국) 한국생명과학회 2008 생명과학회지 Vol.18 No.10
내생성 진균류는 초본류의 식물체 내에 주로 서식하며, 식물의 병원균으로부터 숙주를 보호할 뿐만 아니라, 식물 생육에 유리하게 작용하는 다양한 대사 산물을 생산한다. 매우 흔히 접할 수 있는 사구식물의 뿌리로부터 49종의 균류를 분리하여 식물 생장 촉진 활성이 있는 균주를 선별하였다. 결과적으로 37균주(75.5%)는 awito-c벼의 생육을 촉진하였으며, 11균주(22.5%)는 생육을 저해하였으며, 1균주(2%)는 생육에 아무런 영향을 미치지 않았다. Gibberella fujikuroi와 증류수 및 Czapek broth 배지를 control 로 사용하여 실험을 수행하였다. 결론적으로 사구식물 내생균류의 많은 부분은 숙주식물의 생육과 발달을 조장하는 대사 산물을 생산함을 알 수 있었다. Endophytic fungi predominantly inhabit grasses, and produce a variety of beneficial metabolites for plant growth, as well as help their hosts against pathogens and herbivores. Current study was focused on plant growth promoting activity of endophytic fungi inhabited in the roots of sand dune grasses. We collected 49 fungal isolates from the roots of four most common sand dune grasses and screened them for their growth promoting capacity. Results showed that 37 fungal isolates (75.5%) promoted plant height and shoot length of waito-c rice, 11 fungal isolates (22.5%) suppressed it, while 1 fungus (2%) showed no effect on the growth attributes. The fungal strain Gibberella fujikuroi, along with distilled water and Czapek broth medium, were taken as control for this experiment. It was concluded that a major proportion of endophytic fungi inhabited in the sand dune plants produce metabolites, and thus help in growth and development of the host plant.
Sumera Gul,Abad Khan,Abida Raza,Ismail Khan,Shumaila Ehtisham 한국유전학회 2020 Genes & Genomics Vol.42 No.12
Background: XPD Lys751Gln polymorphism may modulate inter-individual variation in repair capacity of DNA, which may enhance a person’s susceptibility to develop colorectal cancer (CRC). The analysis of XPD Lys751Gln polymorphism may provide important information for identifying high-risk individuals and for selecting the most appropriate treatment for poor prognostic CRC patients. Objective: The overall objective was to find out the association of XPD Lys751Gln gene polymorphism with the risk of having a colorectal cancer and the ultimate clinical outcomes. In this study a total of 300 subjects (CRC and Controls), were genotyped for XPD Lys751Gln. Methods: Using PCR–RFLP methods, the association of XPD Lys751Gln gene polymorphism with the risk of having a colorectal cancer was studied. In addition to overall risk assessment, genotyping results were also investigated with respect to the lifestyle risk factors, patients treated with oxaliplatin-based chemotherapy and clinicopathological characteristics. Results: The overall correlation between the XPD Lys751Gln genetic variation and the CRC risk was observed to be significant with both the homozygous variant genotype Gln/Gln as well as heterozygous genotype Lys/Gln being associated with the increased risk of CRC. Additional stratified analyses revealed that XPD Lys751Gln variants remarkably increased risk of CRC in males and younger individuals (≤ 50 years), Naswar users (8.09-fold) and high intake of red meat. Conclusions: Our findings suggest that the relationship between the XPD Lys751Gln variants and lifestyle factors modulates the risk for CRC in Pakistani population.
Rafique Sumera,Kasi Ajab Khan,Aminullah,Kasi Jafar Khan,Bokhari Muzamil,Zafar Shakoor 한국물리학회 2021 Current Applied Physics Vol.21 No.-
In this research, a unique strategy was developed to enhance the output performance of 2D ZnO nanosheets based piezoelectric nanogenerator (PENG). The Br doped 2D ZnO nanosheets were fabricated by facile hydrothermal method on nanoporous anodic aluminum oxide (AAO) template. Along with structural and optical characterization of Br doped 2D ZnO nanosheets, the electrical output performance of Br doped 2D ZnO PENG was demonstrated under external mechanical force. The corresponding output voltage of Br doped 2D ZnO nanosheets PENG reached to 8.82 V at 6HZ, which is 3 times higher than undoped ZnO nanosheets PENG. The output power density of Br doped 2D ZnO nanosheets PENG reached to 38.8962μWcm 2 at an external load resistanec of about 2 MΩ. The Br doping in ZnO nanosheets significantly increased the sensitivity of PENG for pressure sensing and the flexibility of PENG contribute in the application of position sensing.