http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yaser Hassan Dewir,Debasis Chakrabarty,Sun Ja Kim,Eun Joo Hahn,Kee Yoeup Paek 한국원예학회 2005 Horticulture, Environment, and Biotechnology Vol.46 No.6
The influences of light quality on growth of Euphorbia millii and shoot proliferation of Spathiphyllum cannifolium were studied in vitro and responses were compared with explants grown under fluorescent light (16 h per day). Fresh weight, dry weight, and leaf per plantlets were greater in blue light-emitting diode (LED) treatment in E. millii. Plantlet height was higher in red as well as in blue treatment than that of the other treatments. However, chlorophyll and carotenoid contents were highest in blue light and lowest in red as well as in red plus far-red LED treatments. Among the LED treatments, blue plus far-red light inhibited the growth of E. millii, where as blue light stimulated growth in vitro. In this study, the effect of different light quality using LED and white fluorescent lamps (as control) on shoot proliferation and growth of S. cannifolium in vitro were also investigated. Shoot proliferation as well as fresh and dry weights were significantly increased under red plus far-red or red LED.
Yaser Hassan Dewir,Yu Rangcai,Fan Yanping,Mohammad Babar Ali,Kee Yoeup Paek 한국원예학회 2005 Horticulture, Environment, and Biotechnology Vol.46 No.5
This study was conducted to investigate the response of carnation (Dianthus caryophyllus cv. Oldrush) suspension cell to high temperature and gamma (γ) rays. Carnation cells were exposed to different doses of γ-radiation (0-6000 rad). Both radiated and non-radiated cells grown at 25℃ were then exposed to the temperature treatments of 35℃ (continuous exposure for 2 weeks), 45℃ (exposure 5 h/day for 2 weeks), and 55℃ (exposure for 1 h). The activities of reactive oxygen species scavenging enzymes (superoxide dismutase, catalase, and peroxidase), cell viability, and proline content were determined. The results showed that γ-radiation treatments protected carnation cells against the progressive oxidative damage by high temperature stress. The continuous exposure to heat stress could be more favorable to obtain tolerant cells. This tolerance has been indicated by increased accumulation of free proline and antioxidative activity, which are considered as a protective physiological response to high temperature stress.
In vitro Rooting of Leguminous Plants: Difficulties, Alternatives, and Strategies for Improvement
Yaser Hassan Dewir,Hosakatte Niranjana Murthy,Megahed H. Ammar,Salem S. Alghamdi,Nasser A. Al-Suhaibani,Abdullah A. Alsadon,백기엽 한국원예학회 2016 Horticulture, Environment, and Biotechnology Vol.57 No.4
Leguminous plants include many of the most important food crops and are also cultivated for forage, used as a rich fiber source, and are important in the manufacture of pharmaceutical compounds. Their ability to biologically fix atmospheric nitrogen enhances soil fertility. Beyond conventional propagation methods, modern in vitro technology offers new means for propagating these plants. Significant progress has been achieved in somatic embryogenesis and embryo rescue, despite legumes’ notorious recalcitrance to transformation and regeneration of legumes. The establishment of stable and reproducible regeneration protocols has resulted in commercially successful propagation of some legume species. Still, regeneration protocols for many other legumes have not been successful, primarily due to poor in vitro rooting during regeneration. This review addresses the factors constraining rooting, describes alternative methods to promote in vitro rooting, and provides a summary of in vitro rooting studies performed across a large number of leguminous species.