Showing papers on "Michelia published in 2007"
TL;DR: In this paper, a fractionation of the dichlorometanic layer of the dried stems of Michelia champaca yielded four substances: sinapyl 4-O-b-D-glucopyranoside alcohol, sinaphyl 4 O-mixture 4-B-d-Dglucopeyside aldehyde, syringaresinol and N-acetylnonaine.
Abstract: The fractionation of the dichlorometanic layer of dried stems of Michelia champaca afforded four substances: sinapyl 4-O-b-D-glucopyranoside alcohol, sinapyl 4-O-b-D-glucopyranoside aldehyde, syringaresinol and N-acetylnonaine Part of the crude extract portion was submitted to acid-basic extraction allowed the identification of the alkaloid liriodenine The two phenylpropanoids derivatives and the alkaloid N-acetylnonaine were been reported for the first time from Michelia genus The alkaloid liriodenine and the lignan syringaresinol showed moderate antifungal activity
9 citations
TL;DR: The karyotype data indicate that the speciation may have taken place predominantly at the diploid level in Michelia and Manglietia and that minor structural alternation of chromosomes may have resulted in distinct morphological divergence and probably played the most important role in the evolution of genus and species.
Abstract: A karyomorphological study on eleven and one hybrid belonging to Michelia L and Manglietia Blume (Magnoliaceae, sensu stricto) was conducted The structure of interphase nuclei and prophase chromosomes of rep- resentatives of the two genera were presented here for the first time Three karyomorphological types at resting nu- clei and two types of prophase chromosomes were recognized according to Tanaka's catalogue (1971; 1977; 1980) respectively It might provide information to distinguish the intergeneric and infrageneric relationships in Magno- liaceae An evolutionary trend is proposed that awaits verification by further study All taxa studied have the same diploid number of chromosomes (2n=38) in somatic cells, three of them were reported for the first time, and others were comfirmed The karyotype analysis have shown a predominance of chromosomes with centromeres in a median position and a few submedian centromeres, except for Michelia hypolampra with subterminal and terminal point cen- tromeres, which also showed high karyotypic symmetry The karyotype data documented with 2n=38 indicate that the speciation may have taken place predominantly at the diploid level in Michelia and Manglietia and that minor structural alternation of chromosomes may have resulted in distinct morphological divergence and probably played the most important role in the evolution of genus and species
7 citations
Patent•
27 Jun 2007
TL;DR: The tissue culture seedling producing process for Lechang and golden leaf michelia includes the following steps: 1. inoculating the sterilized bud in inducing culture medium to germinate indefinite bud, shifting to proliferating culture medium after the indefinite bud grows to 1-2 cm long, subculturing for 12-17 generations and shifting into rooting culture medium; 3. dark culturing for 8-12 days before normal rooting culturing; and 4. hardening off under natural lighting after the root grows to 2 cm long for 6-8 days and transplanting as mentioned in this paper
Abstract: The tissue culture seedling producing process for Lechang michelia and golden leaf michelia includes the following steps: 1. treating tender michelia stem segment with bud at 3-5deg.C for 4-8 days before conventional sterilizing; 2. inoculating the sterilized bud in inducing culture medium to germinate indefinite bud, shifting to proliferating culture medium after the indefinite bud grows to 1-2 cm long, subculturing for 12-17 generations and shifting into rooting culture medium; 3. dark culturing for 8-12 days before normal rooting culturing; and 4. hardening off under natural lighting after the root grows to 2 cm long for 6-8 days and transplanting. The present invention has the advantages of high propagation coefficient, being suitable for factory seedling raising, high transplanting survival rate, etc.
5 citations
01 Jan 2007
TL;DR: Michelia multitepala R.Z. Zhou & S.G. Jian sp.
Abstract: Michelia multitepala R.Z. Zhou & S.G. Jian sp. nova (Magnoliaceae) from Yunnan, China is described and illustrated. It appears to be allied with M. macclurei, but differs mainly in having longer leaves, more tepals (11–12) in 4 (or 3–4) series, and in its longer, aggregate spicate (8–15 cm) fruit. Also Michelia ingrata resembles M. multitepala, but differs mainly by its longitudinally furrowed bark, bigger leaves that are glaucous beneath, fleshy and glabrous tepals, and by its unpleasant flower odor.
4 citations
TL;DR: The agar-film method was used to assess fungal biomass and standing crop in several analogous decomposition stages of two leaf species from an upper montane rainforest in Sri Lanka, finding the mass of dead hyphae is considerably lower than data from temperate forests.
3 citations
01 Jan 2007
TL;DR: The classification,morphology,palynology,cytology,phytochemistry,molecular phylogeny and utilization of Michelia are reviewed.
Abstract: Genus Michelia ,containing more than 80 species,is distributed mainly in tropical and subtropical Asia. It is the second largest genus of Magnoliaceae. Most species of Michelia possess important economic value. The classification,morphology,palynology,cytology,phytochemistry,molecular phylogeny and utilization of Michelia are reviewed.
3 citations
TL;DR: Most genera in Magnoliaceae investigated (except Parakmeria, Manglietiastrum and Pachylarnax) show lamina rotation.
Abstract: Phyllotaxis in vegetative shoots and lamina rotation of Magnoliaceae are described. Most genera in Magnoliaceae investigated (except Parakmeria, Manglietiastrum and Pachylarnax) show lamina rotation. Paraphoric, a new type of lamina rotation differing from four other types depicted by Charlton is clarified. Manglietia, Parakmeria, Manglietiastrum, Talauma, section Gwillimia and Rytidospermum in subgenus Magnolia, shoots of Woonyoungia, section Theorhodon and Liriodendron have spiral phyllotaxis, however Magnolia section Oyama and Maingola, Alcimandra, Michelia, Paramichelia, Tsoogiodendron, buds of Woonyoungia, section Theorhodon and Liriodendron have distichous phyllotaxis. The systematic implication of vegetative shoot phyllotaxis and lamina rotation in Magnoliaceae is discussed in this paper.
2 citations
Patent•
11 May 2007
TL;DR: In this paper, a hybridization between michelia sphacrantha as female parent and micro-michelia yunnanensis as male parent was used for culturing Wanchun michelias.
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.
2 citations
Patent•
11 May 2007
TL;DR: In this paper, a cultivation method of plant is described, which is characterized by using michelia yunnanensis as female parent and using micchelia figo as male parent to make hybridization so as to obtain a new plant hybrid species.
Abstract: The present invention relates to a cultivation method of plant, It is characterized by that said invention uses michelia yunnanensis as female parent and uses michelia figo as male parent to make hybridization so as to obtain a new plant hybrid species. Said hybridization process includes the following several procedures: collecting pollen of male parent, making pollination to female parent, fruiting, picking fruit, drying and collecting seeds, storage and sowing in spring of next year.
2 citations
TL;DR: P Phenetic analyses of leaf architectural characters and morphological characters suggested that Paramichelia and Tsoongiodendron are grouped together and merged in the Michelia, and these characters provide useful taxonomic information for division of sections in Michelia.
Abstract: Leaf architectural and morphological characters of 28 taxa from Michelia, Paramichelia and Tsoongiodendron (Magnoliaceae sensu stricto, subtribe Micheliinae) were examined to gain a better understanding of the intergeneric relationships and the systematic positions of some species within Michelia. The taxa examined, all of which have simple leaves with entire margins and camptodromous pinnate venation, varied in their secondary venation, which was brochidodromous or brochidodromous to eucamptodromous, the mixture of simple and composite intersecondary veins, percurrent to reticulate tertiary veins. Dendroid veinlets were recorded for the first time in Michelia species. Phenetic analyses of leaf architectural characters and morphological characters suggested that Paramichelia and Tsoongiodendron are grouped together and merged in the Michelia, and these characters provide useful taxonomic information for division of sections in Michelia. In addition, systematic positions of some species in Michelia are discussed.
2 citations
01 Jan 2007
TL;DR: In the present study embryological features of M.figo were depicted further based on the former relative reports and their systematic significance was discussed.
Abstract: For Michelia figo,there are four microsparangia in the anther whose wall is composed of epidermis,endothecium,3-6 middle layers and a tapetum.The antheral tapetum,consisting of monocyte-or binucleated cells,degenerated in situ,thus belonging to glandular type.The simultaneous cytokinesis in microspore mother cells leads to tetrahedral as well as isobilateral(bilaterally symmetrical)tetrads.The mature pollen grains are 3 celled.In the present study embryological features of M.figo were depicted further based on the former relative reports and their systematic significance was discussed.
TL;DR: A new species of Magnolia, M. citrata is described from Thailand, and a new combination made from S China is described.
Abstract: A new species of Magnolia, M. citrata is described from Thailand, and a new combination made from S China.
01 Jan 2007
TL;DR: Leaf architectural and morphological characters of 28 taxa from Michelia, Paramichelia and Tsoongiodendron (Magnoliaceae sensu stricto, subtribe Micheliinae) were examined to gain a better understanding of the intergeneric relationships and the systematic positions of some species within Michelia as mentioned in this paper.
Abstract: Leaf architectural and morphological characters of 28 taxa from Michelia, Paramichelia and Tsoongiodendron (Magnoliaceae sensu stricto, subtribe Micheliinae) were examined to gain a better understanding of the intergeneric relationships and the systematic positions of some species within Michelia. The taxa examined, all of which have simple leaves with entire margins and camptodromous pinnate venation, varied in their secondary venation, which was brochidodromous or brochidodromous to eucamptodromous, the mixture of simple and composite intersecondary veins, percurrent to reticulate tertiary veins. Dendroid veinlets were recorded for the first time in Michelia species. Phenetic analyses of leaf architectural characters and morphological characters suggested that Paramichelia and Tsoongiodendron are grouped together and merged in the Michelia, and these characters provide useful taxonomic information for division of sections in Michelia. In addition, systematic positions of some species in Michelia are discussed.