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- 저자 : Yung-Mei Yang (검색결과 5 건)
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An easy and efficient protocol in the production of pflp transgenic banana against Fusarium wilt
Yip, Mei-Kuen,Lee, Sin-Wan,Su, Kuei-Ching,Lin, Yi-Hsien,Chen, Tai-Yang,Feng, Teng-Yung The Korean Society of Plant Biotechnology 2011 Plant biotechnology reports Vol.5 No.3
This study describes an efficient protocol for Agrobacterium tumefaciens-mediated transformation of two subgroups of genotype AAA bananas (Musa acuminata cv. Pei Chiao and Musa acuminata cv. Gros Michel). Instead of using suspension cells, cauliflower-like bud clumps, also known as multiple bud clumps (MBC), were induced from sucker buds on MS medium containing $N^6$-Benzylaminopurine (BA), Thidiazuron (TDZ), and Paclobutrazol (PP333). Bud slices were co-cultivated with A. tumefaciens C58C1 or EHA105 that carry a plasmid containing Arabidopsis root-type ferredoxin gene (Atfd3) and a plant ferredoxin-like protein (pflp) gene, respectively. These two strains showed differences in transformation efficiency. The EHA105 strain was more sensitive in Pei Chiao, 51.3% bud slices were pflp-transformed, and 12.6% slices were Atfd3-transformed. Gros Michel was susceptible to C58C1 and the transformation efficiency is 4.4% for pflp and 13.1% for Atfd3. Additionally, gene integration of the putative pflp was confirmed by Southern blot. Resulting from the pathogen inoculation assay, we found that the pflp transgenic banana exhibited resistance to Fusarium oxysporum f. sp. cubense tropical race 4. This protocol is highly advantageous to banana cultivars that have difficulties in setting up suspension cultures for the purpose of quality improvement through genetic transformation. In addition, this protocol would save at least 6 months in obtaining explants for transformation and reduce labor for weekly subculture in embryogenic cell suspension culture systems.
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The number of cecidomyiid insect galls affects the photosynthesis of Machilus thunbergii host leaves
Meng-Yuan Huang,Hsueh-Mei Chou,Yung-Ta Chang,Chi-Ming Yang 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.2
Previous studies of the impacts of galls on host leaf photosynthesis do not suggest any general trends, with a reportedrange of effects from negative to positive. In this study, photosynthetic characteristics such as chlorophyllfluorescence (Fv/Fm), photosynthetic capacity, and stomata conductancewere determined in two types of fruitlikegalls (red ovoid and green obovate galls) induced by Daphnephila taiwanensis and Daphnephila sueyenae, respectively,in order to investigate whether the number of galls affects the photosynthesis of galled leaves ofMachilus thunbergii. In 2008, chlorophyll fluorescence and photosynthetic capacity were negatively correlatedwith gall numbers, non-significantly and significantly, respectively,whereas stomata conductancewas positivelybut non-significantly correlated with gall numbers. In 2009, photosynthesis capacity and stomata conductancewere negatively, but non-significantly, correlated with gall numbers. Results imply that photosynthesis in M. thunbergii leaves is slightly affected by the number of cecidomyiid insect galls, and that the higher the gall number,the greater the negative effect that galls have on host leaf photosynthesis and subsequent infection.
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Conditions and Patterns of Intimate Partner Violence among Taiwanese Women
Fang-Hsin Lee,Yung-Mei Yang,Hsiu-Hung Wang,Joh-Jong Huang,Shu-Chen Chang 한국간호과학회 2015 Asian Nursing Research Vol.9 No.2
Purpose: Intimate partner violence (IPV) is a serious public health issue among women. IPV victims usually seek help from hospitals, and emergency nurses are the frontline staff with whom the victims come into contact first. This study examined the conditions and patterns of IPV in southern Taiwan. Methods: From designated hospitals in Kaohsiung under the Department of Health Injury Assessment Clinic, data were collected on 497 women regarding their injury assessment for IPV reported to the Kaohsiung City Government. Results: Taiwanese survivors were older compared to immigrant survivors. Taiwanese survivors also had higher education levels compared to immigrant survivors. Taiwanese survivors had higher employment rate than immigrant survivors did. The time between IPV and medical help seeking was longer for divorced than married women. Conclusions: These results can facilitate understanding of the conditions and patterns of IPV in Taiwan, increase the awareness of nurses, especially the emergency nurses for the prevention of IPV, and increase professional competency for the provision of appropriate healthcare services to survivors of IPV. Copyright © 2015, Korean Society of Nursing Science. Published by Elsevier. All rights reserved.
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Herbivorous insects alter the chlorophyll metabolism of galls on host plants
Meng-Yuan Huang,Wen-Dar Huang,Hsueh-Mei Chouc,Chang-Chang Chen,Yung-Ta Chang,Chi-Ming Yang 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.3
Five types of insect-induced galls derived from three host plant leaveswere analyzed for their carotenoid (Car), chlorophyll(Chl), and Chl biosynthesis porphyrins such as protoporphyrinogen IX (PPIX), magnesium protoporphyrin(MGPP) and protochlorophyllide (Pchlide), and Chl degradation intermediates including chlorophyllide (Chlide),pheophytin (Phe), pheophorbide (Pho), and phytylated and dephytylated pigments, and compared to ungalledportions of the same leaf. Galls contain significantly lower levels of Chl-related compounds (CRCs) than ungalledportions of host leaves. The mole percent of porphyrin and the ratios of Chlide/Phe and phytylated/dephytylatedpigments are both very different between galls and host leaves.We, therefore, conclude that leaf-derived gall is akind of non-leaf green tissue, that herbivorous insects alter gall Chl biosynthesis and degradation pathways, thatMg-chelatase, Mg-dechelatase, and chlorophyllase may be the major non-lethal enzymes in galls, and thatwhile ungalled host leaves take Chl → Phe → Pho and Chl → Chlide → Pho as the major and minor degradationroutes, respectively, all galls are in contrast with the host leaves.
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Fang-Hsin Lee,Hsiu-Hung Wang,Yung-Mei Yang,Joh-Jong Huang,Hsiu-Min Tsai 한국간호과학회 2016 Asian Nursing Research Vol.10 No.3
Purpose: This study aimed to explore the factors associated with the intention to receive a Pap test among married immigrant women of Vietnamese origin living in Taiwan. Methods: This was a cross-sectional community-based study.We enrolled 281 women aged 30 years and over in the study, from July 2013 to January 2014. The participants' characteristics, cervical cancer knowledge, Pap test knowledge, attitudes toward cervical cancer, barriers to receiving a Pap test, fatalism, and intention to receive a Pap test, were measured using self-report questionnaires. Hierarchical multiple regression analyses were performed to examine the variables associated with participants' intentions to receive a Pap test. Results: Vietnamese women with low scores on the measures of cervical cancer knowledge and perceived barriers to receiving a Pap test were more willing to receive the test, as were those with high scores on the measures of Pap test knowledge and fatalism. Women who received a Pap test in the previous year were more willing to receive a Pap test within the next 3 years. Conclusions: Preventive healthcare for immigrant women should be a focus of nurses. The development of culturally appropriate health education and strategies should enhance their knowledge of Pap tests and reduce perceived barriers to Pap test participation. This study's results can be a reference for nurses who work with immigrant women.
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