• Title/Summary/Keyword: Growth promoting

Search Result 1,421, Processing Time 0.029 seconds

Endophytic Fungi of Salt-Tolerant Plants: Diversity and Ability to Promote Plant Growth

  • Khalmuratova, Irina;Choi, Doo-Ho;Kim, Jong-Guk;Lee, In–Seon
    • Journal of Microbiology and Biotechnology
    • /
    • v.31 no.11
    • /
    • pp.1526-1532
    • /
    • 2021
  • Suaeda australis, Phragmites australis, Suaeda maritima, Suaeda glauca Bunge, and Limonium tetragonum in the Seocheon salt marsh on the west coast of the Korean Penincula were sampled in order to identify the endophytes inhabiting the roots. A total of 128 endophytic fungal isolates belonging to 31 different genera were identified using the fungal internal transcribed spacer (ITS) regions and the 5.8S ribosomal RNA gene. Fusarium, Paraconiothyrium and Alternaria were the most commonly isolated genera in the plant root samples. Various diversity indicators were used to assess the diversity of the isolated fungi. Pure cultures containing each of the 128 endophytic fungi, respectively, were tested for the plant growth-promoting abilities of the fungus on Waito-C rice germinals. The culture filtrate of the isolate Lt-1-3-3 significantly increased the growth of shoots compared to the shoots treated with the control. Lt-1-3-3 culture filtrate was analyzed and showed the presence of gibberellins (GA1 2.487 ng/ml, GA3 2.592 ng/ml, GA9 3.998, and GA24 6.191 ng/ml). The culture filtrate from the Lt-1-3-3 fungal isolate produced greater amounts of GA9 and GA24 than the wild-type Gibberella fujikuroi, a fungus known to produce large amounts of gibberellins. By the molecular analysis, fungal isolate Lt-1-3-3 was identified as Gibberella intermedia, with 100% similarity.

Invisible Signals from the Underground: Bacterial Volatiles Elicit Plant Growth Promotion and Induce Systemic Resistance

  • Ryu, Choong-Min;Farag, Mohammed A.;Pare, Paul. W.;Kloepper, Joseph W.
    • The Plant Pathology Journal
    • /
    • v.21 no.1
    • /
    • pp.7-12
    • /
    • 2005
  • Plant growth-promoting rhizobacteria (PGPR) are a wide range of root-colonizing bacteria with the capacity to enhance plant growth and control plant pathogens. Here we review recent progress that indicate some PGPR strains release a blend of volatile organic compounds (VOCs) that promote growth in Arabidopsis seedlings and induce resistance against Erwinia carotovora subsp. carotovora. In particular, the volatile components 2,3-butanediol and acetoin released exclusively from the PGPR strains triggered the greatest level of growth promotion and induced systemic resistance. Pharmacological applications of 2,3-butanediol promoted the plant growth and induced resistance, while bacterial mutants blocked in 2,3-butanediol and acetoin synthesis was devoid of growth-promotion and induced resistance capacities. The results suggested that the bacterial VOCs play a critical role in the plant growth promotion and induced resistance by PGPR. Using transgenic and mutant lines of Arabidopsis, we provide evidences that the signal pathway activated by volatiles from one PGPR strain is dependent on cyto-kinin activation for growth promotion and dependent on an ethylene-signaling pathway for induced pathogen resistance. This discovery provides new insight into the role of bacterial VOCs as initiators of both plant growth promotion and defense responses in plants.

A Study on Health Promoting Lifestyle and its Affecting Factors of General Hospital Worker (종합병원 근로자의 건강증진생활양식 실천 및 관련요인)

  • Kim, Nam-Yi;Shim, Moon-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.10 no.4
    • /
    • pp.728-735
    • /
    • 2009
  • This study intends to examine general hospital workers' health promoting lifestyle practice and figure out related factors to it. To achieve that, it conducted a survey with an unsigned self-reported questionnaire to the subject of 580 workers at hospitals located in Daejeon. The degree of practice in the subjects' health promoting lifestyle, the average of the entire questions was 2.26 points and the average of sub-sections was as in the following: 2.62 for interpersonal relations, 2.58 for spiritual growth, 2.26 for nutrition, 2.16 for stress management, 2.00 for health responsibility and 1.89 for physical activity Thus, the section of interpersonal relations showed the highest practice rate, whereas the section of physical activity demonstrated the lowest one. According to the multivariate regression analysis by phase, main factors affecting their health promoting lifestyle practice were selected as stress, attendance in education on health promotion, subjective heath condition, and age. The above results imply that general hospital workers' health promoting lifestyle practice is not sufficient and various factors are involved in it. Accordingly, it is considered that in order to enhance general hospital workers' attention to health promoting lifestyle practice, it is necessary to develop health promoting strategies and programs.

The Evolution of Green Growth Policy: An Unwelcome Intrusion on Global Environmental Governance?

  • Park, Jeongwon
    • East Asian Economic Review
    • /
    • v.17 no.2
    • /
    • pp.207-241
    • /
    • 2013
  • The notion of green growth emerged in 2009. Since then, policy makers and practitioners have largely adopted the term. Although rather intermittently, there have been academic observations on green growth, with the term often being cited as a paradigm and a policy guide for generating new sources of growth. The most important reasons for the surge in green growth today as a new trend and an international agenda item are the rather unsatisfactory results and pitfalls of sustainable development, which has failed at promoting a tangible international environmental principle or a concrete policy framework. Green growth has been proposed as an alternative simultaneously to foster the dynamics of global environmental governance and to reinvigorate the world economy. This study examines to what extent green growth plays a complementary role in existing global environmental governance. Available evidence provides reasonable grounds for arguing that a positive outcome may well be expected from the evolution of green growth architecture and followed by practical policies. It became a global agenda out of a few influential national governments' control. However, decision makers in the leading countries, both developed and developing must be willing to continue implementing what has been discussed and agreed thus far, beyond changes in political leadership and administrations.

Studies on the Development of Rise with Plant Extracts for Enhancing Growth Rate (생약추출물을 이용한 키크는 쌀 개발에 관한 연구)

  • Ra Jeong Chan;Kim Jeong Ho;Lee Jong Eun;Park Hyeong Geun;Kim Sung Hun;Kang Kyung Sun
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.17 no.3
    • /
    • pp.815-818
    • /
    • 2003
  • Various kinds of chinese herbs have been known as to promote growth rate of animals. We investigated the growth promoting effect of the selected plants by using fish and rats as experimental animals. In a preliminary test by using fish, Eleutherococcus senticosus and Artemisia capillasis were found to be effective. Based on this result, we manufactured the mixture of plant extracts and applied this mixture to rice, named as Kiwoomi/sup TM/. When we administered Kiwoomi/sup TM/ to rats, it was found to be effective in growth promotion. Kiwoomi/sup TM/ - administered group showed 49.3% (0.75g/kg B.W.) and 52.3% (1.59/kg.B.W.) growth promotion, respectively. On the other hand, Control group showed 46.2% growth promotion. This growth promotion was supported by increase of GH and IGF-1 level in the Kiwoomi/sup TM/- administered group. From these results, we suggest that this functional rice could be helpful for growing children.

A Study on the Dynamic Relationship between Cultural Industry and Economic Growth

  • He, Yugang
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.5 no.4
    • /
    • pp.85-94
    • /
    • 2018
  • The cultural industry is treated as the sunrise industry in modern society. It has taken an increasing role in promoting the economic growth. Due to this, this paper attempts to explore the dynamic relationship between cultural industry and the economic growth. On the grounds of Cobb-Douglas production function, the cultural industry is regarded as a determinant such as the labor input and the capital input to impact the economic growth. Meanwhile, the quarterly datum form 2000-Q1 to 2017-Q4 are employed to perform an empirical analysis via the vector error correction model. The GDP is treated as an independent variable. The input of capital, the input of labor and the total input of cultural industry are treated as dependent variables. Furthermore, a menu of statistical approaches such as the co-integration test and the impulse response function will be used to testify the dynamic relationship between cultural industry and economic growth. Via the Johansen co-integration test, the results report that the cultural industry has a obviously positive effect on economic growth. Through the vector error correction estimation, the results also report that the cultural industry also has a significantly positive effect on economic growth, but less than that of the Johansen co-integration test. This paper provides a view that the cultural industry is a kind of a determinant to promote the economic growth. Therefore, the China's government should pay much attention to the cultural industry construction.

Determinants of Economic Growth in Indonesia: A Dynamic Panel Model

  • BASUKI, Agus Tri;PURWANINGSIH, Yunastiti;SOESILO, Albertus Maqnus;MULYANTO, Mulyanto
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.7 no.11
    • /
    • pp.147-156
    • /
    • 2020
  • This study aims to analyze the effect of public spending, macroeconomic variables, and BPK opinion on economic growth. This study is motivated by the inequality of fiscal policy effectiveness between regions in Indonesia in influencing the economic growth of different regions, the ability of local governments to attract foreign investors, and the transparency of regional financial management in designing development programs to encourage regional economic growth. The analytical tool in this study is a dynamic panel regression model with data from 2008 to 2017. The results of this study show that, in the short term, the population affects regional economic growth, while in the long term, the economic growth is affected by the number of people, the poor, General Allocation Fund, health budget, foreign investment and BPK opinion. The findings of this study are that in the long term the General Allocation Fund becomes an obstacle to economic growth, this is because the general allocation funds is widely used to cover the lack of funds for routine regional activities, thereby reducing activities for development programs. Another research finding is that fiscal policies carried out by local governments make a small and ineffective contribution to promoting economic growth.

Effects of Education Program of Smoking Prevention and Cessation through the Linkages between Subjects of College Students in Some Area (일 지역 대학생의 교양 교과 연계 흡연예방 및 금연교육 프로그램의 효과)

  • Yun, KyungSoon;Cho, SookHee
    • The Journal of Korean Society for School & Community Health Education
    • /
    • v.21 no.2
    • /
    • pp.73-86
    • /
    • 2020
  • Objectives: The purpose of this study was to effects of education program of smoking prevention and cessation through the linkages between subjects on smoking knowledge, grit, health promoting behaviors of college students in some area. Methods: A non-equivalent control group pre-post test design was used. The intervention group received the education program for 6 weeks from October 1 to November 15, 2019. The control group lived only usual daily life. Results: t-test showed that Smoking Knowledge (t=3.78, p<.001) and grit (t=3.75, p<.001) were significant differences between the two groups. In terms of health promotion behaviors, total(t=2.89, p=.002) and physical activity(t=3.20, p=.002), health responsibility(t=3.90, p<.001), spiritual growth(t=1.99, p=.049), interpersonal relations(t=2.61, p=.010) were significant difference between the two groups, in other hands nutrition(t=0.89, p=.372) and stress management(t=1.69, p=.092) were no significant difference between two groups. Conclusions: the education program of smoking prevention and cessation through the linkages between subjects was founded to be an effective education program in improving smoking Knowledge, grit, health promoting behaviors of college students in some area.

A Policy Direction for Promoting Wireless Industry by the Widespread Utilization of Radio Waves (전파이용 확산에 따른 전파 산업 활성화 방향)

  • Park, Seok-Ji;Park, Duk-Kyu
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.24 no.7
    • /
    • pp.701-709
    • /
    • 2013
  • In this paper, we studied a policy direction for promoting wireless industry. For this, we defined the concept of wireless industry and classified their structure and suggested a growth model of wireless industry and policy elements, which is composed of technology development, service development, advancement of law and regulations, business model development, assistance of production and use, publicity enforcement for promotion. Also, we had a survey on the policy elements for promoting the industry by experts interview. We drew some policy directions for promotion of wireless industry from survey results.

Monoclonal Antibody Refolding and Assembly: Protein Disulfide Isomerase Reaction Kinetics

  • Park, Sun-Ho;Ryu, Dewey D.Y.
    • Biotechnology and Bioprocess Engineering:BBE
    • /
    • v.8 no.2
    • /
    • pp.59-63
    • /
    • 2003
  • The protein disulfide isomerase (PDI) reaction kinetics has been studied to evaluate its effect on the monoclonal antibody (Mab) refolding and assembly which accompanies disulfide bend formation. The MAb in vitro assembly experiments showed that the assembly rate of heavy and light chains can be greatly enhanced in the presence of PDI as compared to the rate of assembly obtained by the air-oxidation. The reassembly patterns of MAb in-termediates were identical for both with and without PDI, suggesting that the PDI does not determine the MAb assembly pathway, but rather facilitates the rate of MAb assembly by promoting PDI catalyzed disulfide bond formation. The effect of growth rate on PDI activities for MAb production has also been examined by using continuous culture system. The specific MAb productivity of hybridoma cells decreased as the growth rate increased. However, PDI activities were nearly constant fur a wide range of growth rates except very high growth rate, indicating that no direct correlation between PDI activity and specific MAb productivity exists.