Michelia

About: Michelia is a research topic. Over the lifetime, 198 publications have been published within this topic receiving 1565 citations. The topic is also known as: Magnolia sect. Michelia.

A Study on the Combustibility of Forestation Tree Species in Jiangxi Province

Abstract: Selection of strong fire-resistance tree species through study of their physical and chemical properties is important in construction of fire-preventing forest belt.Forty common tree species from Jiangxi Province were collected for determination of different organs' physical and chemical properties,and for combustion test.Seventeen factors such as moisture content,ignite temperature,energy content,ash content,crude fat content,lignin content,crude fiber content,burning time,burning intensity,bark thickness,were chosen as the classification indexes,through using DPS(Data Processing System),the speies were clustered into four categories(strongest,stronger,general,and combustion species).The strongest fire-resistant species were Symplocos setchuancnsis Brand,Buxus megistophylla Levl.,Pittosporum Banks ex Soland,Viburnum awabuki,Ilex purpurea Hassk.,Michelia chapensls,Michelia macclurel,Schima superba Gardn.et Champ.,and Cinnamomum camphora(L.) presI.,Cinnamomum burmannii,Castanopsis sclerophylla(Lindl.)Schott.,Thea Oleosa Lour.(Camellia oleifera Abel.),Cinnamomum Camphora(Linn) Presd.,Ligustrum lucidum Ait.,Michelia figo(Lour.)Spreng..The stronger fire-resistant species were Camptotheca acuminata Decne.,Populus canadensis Moench.,Paulownia fortunei Hemsl.,Loropetalum Chinense var.rubrum(Yieh.),Liriodendron chinense(Hemsl.) Sarg.,Nerium oleander,Elaeocarpus sylvestris(Lour.)Pior.,Magnolia denudata Desr.,Manglietia patungensis Hu.,Ternstroemia gymnanthera(Wight et Arn.)Sprague.The general fire-resistant species were Lithocarpus glaber(Thunb.)Nakai.,Camellia japomica,Osmanthus fragrans,Sabina chinensis(Linn.) Ant.,Sabina chinensis cv.kaizuka,Cryptomeria fortunei Hooibrenk ex Otto et Dietr..The weak fire-resistant species were Phyllostachys pubescens,Cunninghamia lanceojata(Lamb.)Hook.,Aceraceae fabri Hance.,Podocarpus macrophyllus(Thunb.) D.Don,Pinus massoniana Lamb.,Pinus elliottii Engelm.,Cedrus deodara(Roxb.)G.Don.,Metasequoia glyptostroboides Hu et cheng,Pseuxdolarix kaempferi(LindI) Gord.

Chemical Constituents of the stems of Michelia figo

Abstract: Species belonging to the Michelia genus are arboreous plants, growing in temperate zone of oriental India, southern China, Malaysia, and Indonesia. The species more utilized is Michelia champaca: its cortex and seeds are used as febrifuge and tonic-aromatic, its roots are employed as emmenagogue, its leaves as astringent, its gemmae in the treatment of hemorrhage and its flowers and fruits are believed to possess curative properties in enteritis [1]. Less known species, such as Michelia figo, are used as ornamental plants and to obtain essences. [1]. Michelia figo is an evergreen medium shrub, commonly called banana shrub, because of the heavy, sweet fragrance banana scent of its purple flowers. The plant is also known in Indian folk medicine as a remedy against hypertension [2]. To further understand the chemotaxonomy of the Michelia species [3–11], M. figo was chosen for phytochemical investigation. The chemical constituents of this plant have not yet been reported. The compounds derived from the stem include four alkaloids, (6,7-dimethoxyisoquinolinyl)-(4 -methoxyphenyl)-methanone [12], corydaldine [13], N-methylcorydaldine [14], and liriodenine [15]; two steroids, 6 -hydroxystigmast-4-en-3-one [16] and 6 -hydroxystigmast-4,22-dien-3-one [16]; five benzenoids, p-hydroxybenzaldehyde [17], p-hydroxybenzoic acid [18], 3,4,5-trimethoxybenzoic acid [18], vanillin [18], and vanillic acid [18]. All of these compounds were found for the first time from this plant. The stems of M. figo Spreng. were collected from Chiayi County, Taiwan, in May 2011. Plant material was identified by Prof. Fu-Yuan Lu (Department of Forestry and Natural Resources, College of Agriculture, National Chiayi University). A voucher specimen (Michelia 5) was deposited in the School of Medical and Health Sciences, Fooyin University, Kaohsiung City, Taiwan. The air-dried stems of M. figo (2.3 kg) were extracted with MeOH (5 L 3) at room temperature, and a MeOH extract (53.4 g) was obtained upon concentration under reduced pressure. The MeOH extract, suspended in H2O (1 L), was partitioned with CH2Cl2 (3 L 4) to give fractions soluble in CH2Cl2 (40.5 g) and H2O (7.7 g). The CH2Cl2-soluble fraction was chromatographed over silica gel (900 g, 70–230 mesh) using n-hexane–EtOAc–MeOH mixtures as eluents to give five fractions. Part of fraction 2 (7.04 g) was subjected to silica gel chromatography eluting with n-hexane–EtOAc (50:1), enriched gradually with EtOAc, to furnish five fractions (2-1–2-5). Fraction 2-2 (2.51 g) was further purified on a silica gel column using n-hexane–EtOAc mixtures to obtain a mixture of 6 -hydroxystigmast-4-en-3-one and 6 -hydroxystigmast-4,22-dien3-one (14 mg). Part of fraction 3 (5.68 g) was subjected to silica gel chromatography eluting with n-hexane–EtOAc (40:1), enriched with EtOAc, to furnish three further fractions (3-1–3-3). Fraction 3-2 (2.11 g) was further purified on a silica gel column using CH2Cl2–MeOH mixtures to obtain corydaldine (5 mg) and N-methylcorydaldine (4 mg). Fraction 3-3 (2.18 g) was further purified on a silica gel column using CH2Cl2–MeOH mixtures to obtain liriodenine (17 mg) and (6,7-dimethoxyisoquinolinyl)-(4 -methoxyphenyl)-methanone (3 mg). Part of fraction 4 (7.65 g) was subjected to silica gel chromatography eluting with CH2Cl2–MeOH (40:1), enriched with MeOH, to furnish four fractions (4-1–4-4). Fraction 4-2

Michelia rubriflora, a new species of magnoliaceae from hainan island, china

Abstract: Michelia rubriflora sp. nov., from Hainan Island, China, is described and illustrated. It resembles M. mediocris Dandy, but can be easily recognised by its ovate-elliptic leaves, 1~2 mm long, stipular scars red and bigger tepals, and red and longer androecia.

Method for breeding plant brand of í«Wanchun Hanxiao

Abstract: A method for culturing 'Wanchun michelia' by the hybridization between michelia sphacrantha as female parent and michelia yunnanensis as male parent includes such steps as artificial pollination, putting the flower of female parent in a bag for one week, bearing fruit, picking up the mature fruit, removing pulp, storing in sand, and sowing in the early spring of next year.