• The Plant Pathology Journal
• /
• v.26 no.1
• /
• pp.99-99
• /
• 2010

• The Plant Pathology Journal
• /
• v.26 no.3
• /
• pp.293-293
• /
• 2010

• Korean Journal of Pharmacognosy
• /
• v.41 no.4
• /
• pp.289-296
• /
• 2010

Aldose reductase (AR), the principal enzyme of the polyol pathway, has been shown to play an important role in the development of the diabetic complications. Evaluating natural sources for ARI potential may lead to the development of safer and more effective agents against diabetic complications. Sixty four Chinese herbal medicines have been investigated for inhibitory activities on AR. Among them, thirteen herbal medicines, Inula helianthus-aquatilis C. Y. Wu ex Ling. (whole plant), Erigeron breviscapus (Vant.) Hand. Mazz. (whole plant), Lonicera hypoglauca Miq. (leaf, stem), Scutellaria orthocalyx Hang. Mazz. (whole plant), Berchemia floribunda Brongn. (leaf, stem), Michelia alba DC. (flower), Oroxylum indicum (seed), Punica granatum L. (peel), Elsholtzia capituligera (whole plant), Trachelospermum jasminoides (Lindl.) Lem. (whole plant), Elsholtzia strobilifera Benth. (whole plant), Agrimonia pilosa var. nepalensis (D. Don) Nakai (whole plant) and Aster poliothamnus Diels (whole plant) exhibited a significant inhibitory activity against AR. Particularly, Inula helianthus-aquatilis C. Y. Wu ex Ling. showed seven times more potent inhibitory activity than the positive control, 3,3-tetramethyleneglutaric acid (TMG).

• Research in Plant Disease
• /
• v.20 no.3
• /
• pp.206-210
• /
• 2014

Korean ginseng (Panax ginseng) is the most popular herb for medical purpose in Korea. Recently, viral diseases from Korean ginseng showing various degrees of severe mottling, variegation and mosaic symptoms have caused quantity losses of Korean ginseng in a large number of farms. Watermelon mosaic virus (named WMV-gin) was identified as a causal agent for the disease of Korean ginseng. Interestingly, WMV-gin failed to infect both Korean ginseng plant and susceptible host species including cucurbitaceous plants by mechanical inoculation. However, WMV-gin could successfully infect Korean ginseng by transmission of two aphid species (Myzus persicae and Aphis gossypii). It is likely that transmission of WMV-gin was done by both the aphid species during feeding behavior of the two aphid species on Korean ginseng, though the aphids dislike feeding in Korea ginseng. Similarly, a strain of WMV (WMV-wm) isolated from watermelon was transmitted successfully to Korean ginseng plant by the two aphid species, but not by mechanical inoculations. Transmission assays using M. persicae and A. gossypii clearly showed both WMV-gin and WMV-wm were not transmitted from infected Korean ginseng plant to cucurbit species that are good host species for WMV. These results suggest WMV disease occurring in Korean ginseng plant can be controlled by ecological approaches.

• Research in Plant Disease
• /
• v.27 no.3
• /
• pp.91-98
• /
• 2021

The current social demand for organic, sustainable, and eco-friendly approaches for farming, while ensuring the health and productivity of crops is increasing rapidly. Biocontrol agents are applied to crops to ensure biological control of plant pathogens. Research on the biological control of white root rot disease caused by a soil-borne pathogen, Rosellinia necatrix, is limited in pears compared to that in apple and avocado. This pathogenic fungus has an extensive host range, and symptoms of this disease include rotting of roots, yellowing and falling of leaves, wilting, and finally tree death. The severity of the disease caused by R. necatrix, makes it the most harmful fungal pathogen infecting the economical fruit tree species, such as pears, and is one of the main limiting factors in pear farming, with devastating effects on plant health and yield. In addition to agronomic and cultural practices, growers use chemical treatments to control the disease. However, rising public concern about environmental pollution and harmful effects of chemicals in humans and animals has facilitated the search for novel and environmentally friendly disease control methods. This review will briefly summarize the current status of biocontrol agents, ecofriendly methods, and possible approaches to control disease in pear orchards.

• The Plant Pathology Journal
• /
• v.39 no.3
• /
• pp.303-308
• /
• 2023

The global climate change and international trade have facilitated the movement of plants across borders, increasing the risk of introducing novel plant viruses in new territories. Ixora coccinea exhibited virus-like foliar symptoms, including mosaic and mild mottle. An Oxford Nanopore Technologies-based compact and portable MinION platform was used to identify the causal viral pathogen. The complete genome sequence of jasmine virus H (JaVH; 3867 nt, JaVH-CNU) was determined and found to share 88.4-90.3% nucleotide identity with that of Jasminum sambac JaVH isolate in China. Phylogenetic analysis based on the complete amino acid sequences of RNA-dependent RNA polymerase and coat protein revealed that JaVH-CNU was grouped separately with other JaVH isolates. This is the first report of a natural JaVH infection of I. coccinea. The application of rapid nanopore sequencing for plant virus identification was demonstrated and is expected to provide accurate and rapid diagnosis for virus surveillance.

• The Journal of Internal Korean Medicine
• /
• v.31 no.3
• /
• pp.448-456
• /
• 2010

Objective : To summarize and make a reference number of antihyperlipidemic herbal plants worldwide. Method : We surveyed all papers of antihyperlipidemic studies using herbal plants in Pubmed database as "hyperlipidemia AND herb", "hyperlipidemia AND herbal", etc. of Default Tag "Title". The number of papers, the formation of experiments, frequency of herbal plants studies, and main studies were analyzed. Result : Total 178 studies were finally selected. The number of papers were rapidly was increased since 1998. RCT studies were most papers(39.9%). Most studies were about plant sterol or plant stanol studies(78%). 10 papers studied about Herbal plants. Crataegus pinnatifida Bunge, Salvia miltiorrhiza Bunge, Alisma orientale(Sam.) Juz. and so forth were relatively studied much. Conclusion : This study produced an overview of worldwide antihyperlipidemic plants. This result may provide a valuable information for development of Korean herbal medicine against hyperlipidemia in the future.

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2010.05a
• /
• pp.4-4
• /
• 2010

The aim of this study is to investigate anti-stress effect of Nelumbo nucifera extract (NNE) inimmobilization - stressed ICR mice. Stress exposure has induced adrenal gland weight, plasma glucose and level in NNE. The experiments were performed with the use of 9 weeks of age male ICR mice (20-25g) at the time of first treatment with NNE. Animals of the normal group were not exposed to any stress and the control group were exposed to stress. The rats of NNE and Diazepam (BZ) supplementary group were orally administered once a day, 100 mg of NNE, 5 mg of BZ extract/kg body weight and they were exposed to stress. Animals were given supplements for 7 days without stress, and then were given supplements for 5 days with restraining. NNE was effective in decreasing scopolamine induced deficit in passive avoidance test and levels of blood corticosterone which was increased by stress in the mice.

• Journal of agriculture & life science
• /
• v.50 no.5
• /
• pp.1-9
• /
• 2016

Plant growth and development strongly influenced by light quantity and its spectral composition. Young tomato plants were cultivated in growth cabinets under artificial light provided by red and blue light emitting diodes(LEDs) during 12 hours, then plants were exposed to monochromatic ultraviolet, blue, green and red lights as an end-of-day(EOD) treatment during 4 hours to study their effect on plant growth parameters. EOD lighting from various LEDs increased total fresh and dry weights as well as assimilation area compared to those in control. Blue light increased stem height, internode length and stem diameter. Monochromatic UV-A light reduced stem elongation, highly increased stomatal conductance. Compactness and health index of young tomato plants were increased in UV-A and red light treatments.

• 한국약용작물학회:학술대회논문집
• /
• 2011.09a
• /
• pp.88-89
• /
• 2011