• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2022년도 추계학술대회
• /
• pp.70-70
• /
• 2022

Corchoropsis Siebold & Zucc. was traditionally included in Tiliaceae, however, several morphological characters and molecular phylogenetic studies supported that it was the member of Dombeyoideae (Malvaceae). It is used as compost, medicinal, and ornamental herbs. Out of total three species, two species and one variety, grow in Korea. Although it is an East Asian endemic genus, plastome data has not been defined. Here, we characterize the plastome sequences of C. tomentosa (160,093 bp) and C. tomentosa var. psilocarpa (160,724 bp). Corchoropsis encodes 78 protein-coding genes, 30 tRNAs, and four rRNAs with a pseudogene inf A. Phylogenetic study revealed that Tilioideae is sister of Dombeyoideae. This study will contribute to define the genome structures, phylogenetic, and evolutionary studies of the genus Corchoropsis.

• Weed & Turfgrass Science
• /
• 제4권3호
• /
• pp.236-242
• /
• 2015

제주도의 밭을 대상으로 141지점을 선정하여 조사를 진행하였다. 제주도 밭에 발생하는 외래잡초 조사결과 18과 50속 64종 2변종, 총 66분류군의 외래잡초가 조사되었고 동계작물 재배지에서는 18과 45종, 하계작물 재배지에서는 16과 50종, 다년생 작물 재배지에서는 17과 39종이 출현하였다. 외래잡초의 생활형은 하계일년생 잡초가 39.4%, 동계일년생은 잡초는 36.4%, 하계일년생과 동계일년생이 모두 가능한 잡초는 7.6%, 다년생 잡초는 16.7%로 분석되었다. 특히 하계작물 재배지에서 하계일년생 잡초의 비율이 높았다. 종의 과별 분포순위는 국화과, 벼과, 아욱과가 우점하는 것으로 분석되었으나 다년생 작물 재배지에서는 아욱과는 출현하지 않았다. 제주도의 동계작물 재배지에서 우점하는 외래잡초는 흰명아주, 청비름, 개쑥갓, 냄새냉이, 들개미자리였고 하계작물 재배지에서는 흰명아주, 청비름, 개쑥갓, 방가지똥이었다. 다년생 작물 재배지에서는 큰망초, 선풀솜나물, 개쑥갓, 흰명아주로 조사되어 다른 작물과 차이를 보였다. 제주도 전체 밭에서 발생하는 외래잡초의 우점종은 흰명아주, 청비름, 개쑥갓, 큰망초, 방가지똥 등으로 분석되었다. 제주도에 발생하는 외래잡초의 발생정보는 밭의 지속적인 관리방안을 수립하는데 도움이 될 것이다.

• Mycobiology
• /
• 제42권1호
• /
• pp.66-72
• /
• 2014

Roselle (Hibiscus sabdariffa L.) family Malvaceae is an important crop used in food, cosmetics and pharmaceutics industries. Roselle is cultivated mainly in Upper Egypt (Qena and Aswan governorates) producing 94% of total production. Root rot disease of roselle is one of the most important diseases that attack both seedlings and adult plants causing serious losses in crop productivity and quality. The main objective of the present study is to identify and characterize pathogens associated with root rot and wilt symptoms of roselle in Qena, Upper Egypt and evaluate their pathogenicity under greenhouse and field condition. Fusarium oxysporum, Macrophomina phaseolina, Fusarium solani, Fusarium equiseti and Fusarium semitectum were isolated from the natural root rot diseases in roselle. All isolated fungi were morphologically characterized and varied in their pathogenic potentialities. They could attack roselle plants causing damping-off and root rot/wilt diseases in different pathogenicity tests. The highest pathogenicity was caused by F. oxysporum and M. phaseolina followed by F. solani. The least pathogenic fungi were F. equiseti followed by F. semitectum. It obviously noted that Baladi roselle cultivar was more susceptible to infection with all tested fungi than Sobhia 17 under greenhouse and field conditions. This is the first report of fungal pathogens causing root rot and vascular wilt in roselle in Upper Egypt.

• Advances in Traditional Medicine
• /
• 제6권4호
• /
• pp.330-335
• /
• 2006

The present investigation was carried out to determine the efficacy and safety of Abutilon indicum (A. indicum) (Eng: Country Mallow, Fam: Malvaceae) in patients of bronchial asthma. Dried aerial parts of A. indicum were finely powdered and given in the dose of 1 gm tid to 30 patients of either sex in the range of 15 - 80 years with mild to moderate bronchial asthma with or without any concurrent medication. The respiratory functions (FVC, $FEV_{1}$, $FEF_{25-75%}$and MVV) were assessed using a spirometer prior to and after 4 weeks of treatment. Efficacy of the drug in improving clinical symptoms and severity of asthmatic attacks was evaluated by interviewing the patient and by physical and hematological examination at the end of the treatment. 4 weeks treatment with the drug showed statistically significant improvement in various parameters of pulmonary functions in asthmatic subjects. Also significant improvement was observed in clinical symptoms and severity of asthmatic attacks. None of the patient showed any adverse effect with A. indicum. The results of the present study suggest the usefulness of A. indicum in patients with mild to moderate bronchial asthma.

• Natural Product Sciences
• /
• 제9권2호
• /
• pp.83-86
• /
• 2003

In the present study, Thespesia populnea (Malvaceae) bark was extracted with methanol and water. The extracts were vacuum dried to yield the respective methanol (MET) and aqueous extract (AET). The extracts were evaluated for hepatoprotective activity against carbon tetrachloride $(CCl_{4})$ induced liver damage at 2 dose levels (250 and 500 mg/kg). The biochemical parameters observed in serum were total bilirubin, alkaline phosphatase (ALP), serum glutamate oxaloacetate transaminase (SGOT), serum glutamate pyruvate transaminase (SGPT) levels and total protein. Aspartate transaminase (AST), alanine transaminase (ALT) and total protein levels in liver were also evaluated. Histopathological study on the liver tissue was also performed. The extracts exhibited dose dependent reduction in total bilirubin, ALP SGOT, SGPT, AST, ALT and increase in total protein (serum and liver) levels. The extracts also exhibited only mild hepatocytic damage compared to the $CCl_{4}$ Treated group. MET was found to exhibit higher hepatoprotection than AET.

• 펄프종이기술
• /
• 제40권4호
• /
• pp.1-9
• /
• 2008

The utilization of non-woody fibers with the fast growing annual plants has occurred in the paper industry to replace wood and preserve environment of the earth. The non-woody fibers generally used for papermaking are paper mulberry, gampi, manila hemp, rice straw, bamboo, and coton linter etc.. Recently Kenaf has been spot-lighted for the same application. Kenaf is an annual plant of Hibiscus species of Malvaceae family. Kenaf, a rapid growing and high harvesting non-woody fiber plant, was identified as one of the promising fiber sources for the production of paper pulp. This study was carried out to investigate the pulping characteristics of Kenaf bast fiber for Hanji (traditional Korean paper) manufacturing by different pulping methods, such as alkali, alkali-peroxide and sulfomethylated pulpings. It was possible to make superior grade of Hanji. Especially sulfomethylated pulping was resulted in superior pulp in terms of higher yields and qualities in comparison to those of the other pulping methods. Hanji from sulfomethylated pulp was shown the highest brightness of over 60% and higher sheet strength. In addition, the morphological features of pulp fibers (pulp compositions) affect to the sheet properties. Therefore the effect of fiber distribution index(FDI) which was calculated from the data of Confocal laser scanning microscopy(CLSM) on the sheet properties of Kenaf Hanji was also discussed.

• 생약학회지
• /
• 제46권2호
• /
• pp.93-98
• /
• 2015

Eleven compounds, lupenone (1), lupeol (2), stigmasterol (3), β-sitosterol (4), 24-methylene-3,4-seco-cycloart-4(28)-en-3-oic acid (5), 24-methylene-3,4-seco-cycloart-4(28)-en-3-methyl ester (6), (+)-(1S,4R)-7-hydroxycalamenene (7), hibicuslide C (8), isopropyl-${\beta}$-D-glucopyranoside (9), syringaresinol-4'-O-${\beta}$-D-glucoside (10), and rutin (11) were isolated from the aerial parts of Abutilon theophrasti. The chemical structures of compounds 1-11 were determined by the basis of physicochemical properties and spectroscopic methods such as 1D and 2D NMR. These compounds were isolated from this plant for the first time. In addition, compounds 6 and 9 were obtained for the first time as natural products not as synthetics.

• 한국자원식물학회지
• /
• 제35권6호
• /
• pp.820-824
• /
• 2022

Ecologically sustainable means of development is the point to support environmental homeostasis. One of our roles is to find bio-degradable resources that can be substituted for petroleum-based products to effectively abide by the natural viability. To counter the issues of deforestation and preserve biodiversity, it is necessary to produce a non-wood crop that can fulfill the requirement for raw material from which several products can be produced. Kenaf (Hibiscus cannabinus), a member of the family Malvaceae, is showing sufficient potentiality along this road-map. Due to its rich fiber content, it has been used extensively in various fields for long, probably as early as 4,000 BC. At present, kenaf has been used as provider of paper, plastics, fiber glass, biofuel, activated carbon and epoxy composite. This obviously catch one's attention towards its capability to replace petroleum-based products as a whole. Moreover, the plant shows considerable relevance in decreasing pollutants by virtue of its enormous absorption capacity. These multiple applications of kenaf justify its credibility to be the best resource for the better world. The paper presents an overview on its numerous uses reported in the literature that we have investigated and its great potential as a valuable multipurpose crop.

• Journal of Ecology and Environment
• /
• 제36권2호
• /
• pp.125-129
• /
• 2013

The study on the major insect pests community of Hibiscus syriacus. There were three orders, seven families, and thirteen species of insects harmful to H. syriacus. When the harmful insects eating H. syriacus were classified according to which part of the flower they were eating, insects eating leaves, which considered of nine species four families and one order, accounted for 69.23 %. Insects sucking juice from leaves and stems comprised 15.38 %, with two species two families and two orders, while insects eating seeds comprised 15.38 %, with two species two families and two orders. Aphis gossypii appeared once per H. syriacus from the fourth week of April to the second week of June, appearing the most at a rate of 69.05 per H. syriacus during the first week of May. Dichocrocis surusalis appeared at a rate of 0.05 per H. syriacus during the third week of April and regularly appeared from the first week of July to the second week of September. Nortacha derogata appeared at a rate of 0.1 per tree during the first week of May, after which it continuously appeared until the third week of October. Anomis privata appeared at a rate of 0.05 per tree during the first week of May and continuously occurred from the fourth week of June to the fourth week of October. Its occurrence was most frequent at 2.30 per tree during the third week of September.

• Journal of Plant Biology
• /
• 제34권1호
• /
• pp.67-75
• /
• 1991

한국산 아욱목 식물 4과, 5속 10종의 목부 해부학적 형질을 비교 관찰하여 과 및 속간의 목부의 특수화 정도를 검토하였다. 담팔수과 담팔수속의 목부는 산공재로서 각상 도관이 주로 방사배열(2-14 세포폭)이고 이관 및 반관유조직이 드물게 나타난다. 산공재로서 단독분포도관과 유조직이 계단상 1열대를 보이는 피나무과 식물 중 피나무속은 도관이 각상이고, 방사조직이 절화와 타일세포가 존재하며 장구밥나무속은 원형도관을 보인다. 아욱과 무궁화속은 환공재로 도관은 원형 단독분포이며 유조직이 2열로 나타난다. 그리고 벽오동과 벽오동속은 환공재로 원형 단독분포이며, 반관연합익상 및 이관 다열 유조직이 나타난다. 그리고 유조직에는 전분과립이 많이 나타난다. 도관요소의 배열, 모양, 길이, 직경 및 청공판 각도와 주축유조직의 분포 등의 특징에 의한 이들 과간의 계통순서는 담팔수과(담팔수속) 피나무과(피나무속 장구밥나무속) 아욱과(무궁화속) 벽오동과(벽오동속) 순으로 사료된다.