http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
참지네고사리의 포자발아, 전엽체 및 포자체 번식에 영향을 미치는 배양 조건
장보국(Bo Kook Jang),조주성(Ju Sung Cho),이기철(Ki Cheol Lee),이철희(Cheol Hee Lee) 한국원예학회 2017 원예과학기술지 Vol.35 No.4
We investigated a suitable method for in vitro germination of spores, propagation of prothalli, and the formation of sporophytes in the fern Dryopteris nipponensis Koidz. Spore germination rate was relatively high regardless of culture medium. Prothallus development was faster in Knop medium than in Murashige and Skoog (MS) media. Prothalli used in all experiments were obtained from germinated spores, and were cultivated in different concentrations of media components. The active formation of sexual organs such as antheridium made 1MS medium suitable for prothallus propagation, although there was a lower propagation ratio compared to Knop medium. Growth and morphogenesis of prothalli were most effective on 1MS medium containing 2% sucrose, and 60 mM of total nitrogen source with 20:40 mM ratio of NH<SUB>4</SUB><SUP>+</SUP>:NO<SUB>3</SUB><SUP>-</SUP>.To select a suitable soil composition for sporophyte formation, ground prothalli were cultivated on single and mixed soils using bed soil, peat moss, perlite, and decomposed granite for 14 weeks. Bed soil promoted sporophyte formation and growth regardless of single or mixed use. In particular, a mixture of bed soil and decomposed granite in a 2:1 ratio (v:v) led to accelerated sporophyte formation (0.83/cm<SUP>2</SUP>).
Bo-Kook Jang(장보국),Cheol Hee Lee 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
Cryopreservation is the preferred method for gene banks because it allows safe and long-term preservation of various plant species and germplasm using only a small space. Moreover, it can be applied to a wide range of flora and is thus an ideal preservation method. Therefore, the present study have proposed the cryopreservation method for long-term conservation of eastern bracken gametophytes. Encapsulation-dehydration of gametophytes was performed, and conditions for exogenous sucrose and abscisic acid (ABA) preculture were investigated. Gametophytes are sensitive to dehydration and drying, and the following treatment conditions were required to survive from cryopreservation: encapsulation by alginate containing 0.75 M sucrose, 18 h loading treatment containing 0.75 M sucrose, and 6 h drying treatment. Encapsulation is essential for gametophyte survival. After dehydration and drying, the moisture content of alginate beads was less than 27.5%, which was appropriate for maintaining the survivability. In addition, sucrose, and ABA preculture were essential before encapsulation to achieve a survival of 90% or more. Various stress and preculture during the cryopreservation process regulated gene expression of PaSuSy, PaLEA14, and PaABI1b, as well as endogenous ABA content. These results suggest that the encapsulation-dehydration method is effective for long-term conservation of eastern bracken gametophyte, and that preculture can alleviate abiotic stress and increase its survival.
침지 전처리 및 광조건에 따른 양배추 새싹 추출물의 항산화 활성 능력
장보국(Bo-Kook Jang),이하민(Hamin Lee),지보란(Boran Ji),박경태(Kyungtae Park),이상엽(Sang Yeob Lee),안경구(Kyunggu An),장경태(Kyung Tae Jang),조주성(Ju-Sung Cho) 한국조리학회 2024 한국조리학회지 Vol.30 No.3
Cabbage (Brassica oleracea var. capitate) is a vegetable crop from Brassicaceae, mainly grown in Asia. It is a popular food ingredient worldwide due to its abundance of nutrients and bioactive compounds. In this study, cabbage seeds were subjected to pre-soaking treatment and different light conditions, and the total flavonoid content (TFC), total polyphenol content (TPC), and antioxidant activity of the sprouts were compared. Cabbage seeds exposed to dark conditions after pre-soaking treatment showed the greatest increase in sprout biomass, including shoot length (16.3 mm) and fresh weight (346.8 mg/plant). The hypocotyls of sprouts grown under blue light after pre-soaking treatment turned purple. Sprouts grown under dark conditions and blue light after pre-soaking treatment had excellent TFC (125.1 and 135.2 mg·NE·g−1, respectively), TPC (130.1 and 126.2 mg·TAE·g−1, respectively), DPPH radical scavenging activity (1.11 and 1.25 mg·mL−1, respectively), and ABTS radical scavenging activity (0.97 and 1.12 mg·mL−1, respectively). Therefore, cabbage sprouts grown under different light conditions after pre-soaking treatment have better growth, bioactive compounds, and antioxidant activity. This sprout cultivation method can help improve the quality of various sprout vegetables and produce functional foods.