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10 November 2008, Volume 37 Issue 04 Previous Issue    Next Issue

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Characters of Leaf Epidermis in 9 Species of Ulmaceae from China SUN Tong-xing 2008, 37(04): 1-8.  Abstract ( )   PDF (5749KB) ( )   Epidermal characters of mature leaves in 9 species belonging to 6 genera of Ulmaecae were investigated with the help of epidermal maceration and light microscope.The results show that the stomatal apparatus are anomocytic and exist only on the abaxial epidermis in 9 species.Trichomes are mainly divided into glandular hair and non glandular hair.Glandular hairs consist of 1 basal cell, 2~4 stalk cells and 2~4 dilated head cells.Non glandular hairs are developed from one cell, yellow cystolith is often found at the base of the trichome, some hairs are very short and take on beaked shape, another hairs are long wimble shape.Based on the above morphological characters, it is not reasonable that Ulmaceae (sensu lato) was divided into two independent families.Meanwhile, the shape of epidermal cells, the pattern of trichomes and the characters of stomatal apparatus vary obviously with species and genera. Related Articles | Metrics

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Botanical Characters and Classification Status of Wild Banana in Bobai County, Guangxi QIN Xian-quan, PENG Hong-xiang, YAO Jin-yan, LONG Xing, CAO Hui-qing, HE Xin-hua 2008, 37(04): 9-11.  Abstract ( )   PDF (1133KB) ( )   Investigations in Bobai, Guangxi showed that the stem height of the wild banana ranges from 500 cm to 600 cm with opening leaves, circular and symmetrical base on both sides of leaf.The wild banana in Bobai has purple-red fruit colour and 343.8 seeds per fruit.According to the classification of Simmonds, the Bobai wild banana gets a score of 30 points, which falls in AA group.The botanical analysis as well as ecological characters of wild banana in Bobai suggested their importance for hybrid breeding and deserving of conservation. Related Articles | Metrics

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Seasonal Variation of GO and RuBPC Carboxylase Activities in Chorisia speciosa WU Ji-lin, LI Yong-hua, YE Qing-sheng, TANG Ke-hua 2008, 37(04): 12-14,21.  Abstract ( )   PDF (898KB) ( )   Seasonal variations of chlorophyll, the activities of glycolate oxidase (GO) and RuBPC carboxylase (RuBPCase) in Chorisia speciosa leaves were studied.The results were as follows.The concentrations of Chla、Chlb and Chl (a+b) changed from May to December, and reached their high peak on July;Seasonal variation in the activity of RuBPcase was a bimodal curve and had two peaks in June and September, the peaks were about 275 nmol/mg·min and 248 nmol/mg·min, respectively, and there was a low valley in August;Seasonal variation in the activity of GO was different to RuBPcase, its peak came in August and reached about 252 nmol/mg·min.Seasonal variations of PAR and Tair were important to chlorophyll and the activity of GO, and had a significantly relationship with them. Related Articles | Metrics

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Effects of 4-PU and 6-BA on Formation of Calli and Adventitious Buds in Epicotyl Explants of Arachis hypogaea QIN Ming, LIU Can, LI Ling 2008, 37(04): 15-17,28.  Abstract ( )   PDF (1031KB) ( )   The effects of 4-PU and 6-BA on formations of the calli and adventitious buds from epicotyl explants in peanut were studied in the experiment.in the MS medium contained 0.1 mg/L 4-PU and 6-BA 4 mg/L for 20 days, the formation rate of calli could reach 100%.0.1 mg/L 4-PU combined with 1-4mg/L 6-BA in MS medium, promoted the adventitious buds formation.The optimal medium for adventitious bud information and shoot elongation were MS+0.1 mg/L 4-PU+2 mg/L 6-BA and MS+0.1 mg/L 4-PU+4 mg/L BA, respectively.The percentage of adventitious bud formation, number and length of buds of peanut grown in the MS medium contained only 0.5 mg/L 4-PU were higher than those grown in the MS medium contained 0.5 mg/L 4-PU+6-BA. Related Articles | Metrics

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Simultaneous Determination of Four Kinds of Cytokinin Components in Arabidopsis thaliana by High Performance Liquid Chromatography TONG Jian-hua, ZHAO Wen-kui, ZHANG Xue-qin, LIANG Yan-ping 2008, 37(04): 18-21.  Abstract ( )   PDF (970KB) ( )   The study was conducted to establish the methods which to detect the contents of four kinds of cytokinin components (Z, ZR, 2ip and 2ipr) in Arabidopsis thaliana simultaneously by high performance liquid chromatography (HPLC).Results showed that they could be determined precisely in Arabidopsis thaliana by using reversed phase column Waters C18(4.6×250 mm, 5 μm), at 35℃, with acetonitrile and triethylamine buffer as mobile phase, and at flow speed 1 ml/min by gradient elution and with 270 nm.The detectable limitation of this method was 0.001 μg/ml. Related Articles | Metrics

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Isolation and Fatty-acid Identification of Endophytes in Longan Fruits ZHU Yu-jing, WANG Qiu-hong, CHEN Lu, LAN Jiang-lin, LIN Kang-mei, LIU Bo 2008, 37(04): 22-25.  Abstract ( )   PDF (1076KB) ( )   The endophytes in longan (Dimocarpus longan) were isolated and identified by fatty-acid technology.The results showed that endophytic bacteria belonging to Enterobacter, Pectobacterium, Kluyvera, and Salmonella were detected in the fruit of longan, as well as the endophytic fungi belonging to Cladosporium, Scytalidium and Exophiala. Related Articles | Metrics

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Studies on Chemical Constituents of Stem Bark of Wikstroemia indica CHEN Ding-shuang, HUANG Yun-dong, WANG Ding-yong 2008, 37(04): 26-28.  Abstract ( )   PDF (888KB) ( )   Five compounds were isolated from the stem bark of Wikstroemia indica.Their structures were identified as daphnoretin (1), genkwanin (2), quercetin (3), myricetin (4) and kaempferol (5) by means of spectral analysis.Compound 3, 4, 5 were obtained from the plant first time. Related Articles | Metrics

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Contents of Total Gypenosides from Gynostemma pentaphyllum with Different Pre-treatments ZHANG Tao, ZHANG Yu-song, CHENG Zu-xin 2008, 37(04): 29-31.  Abstract ( )   PDF (845KB) ( )   Ultrasonic extraction was used to extract the gypenosides from fresh leaves sample (F), fixed sample (X), baked sample (B), air-dried sample (A) and dry tea sample (D) of Gynostemma pentaphyllum.The results showed that the content of total gypenosides was X >B >F >A >D.It maybe that gypenosides decompounding level depends on glycosidase deactivation level.It would be paid attention to in production and experiment study. Related Articles | Metrics

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Effects of Basic Media and Organic Compounds on Growth of in vitro Shoots of Three Varieties of Doritaenopsis CHEN Chun-man, HE Mi-li, JIANG Xiong-hui, ZHENG Gui-chao 2008, 37(04): 32-34.  Abstract ( )   PDF (835KB) ( )   Shoots in vitro of different color flower of three popular Doritaenopsis varieties, the yellow flowers of Dtps.Chain Xen Queen, the red flowers of Dtps.Jiuhbao Red Rose, and the white flowers of Dtps.[I-Hsin Actor×(Tom Boy×Mount Beauty)]were used as materials and the effects of basic culture media and organic compounds on rooting and growth of these shoots were investigated.It was found that Dtps.Jiuhbao Red Rose rooted and the leaves grew better in Kyoto than in 1/2 MS, while the leaves of Dtps.Chain Xen Queen grew well in Kyoto.All the three varieties rooted better in the media that added with 100 g/L banana.The leaves of Dtps.Chain Xen Queen grew better in the media supplemented with 70 g/L banana and 30 g/L potato. Related Articles | Metrics

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Effects on Germination and Growth of Seedling with Different Treatments for Seeds of Paeonia ostii HUANG Qing-yun 2008, 37(04): 35-37.  Abstract ( )   PDF (841KB) ( )   Paeonia ostii ‘Feng Dan’ is rare and valuable treasure of peonies, its medicinal value ranks the top among the four famous Chinese medicine.However, the cultivation of P.ostii ‘Feng Dan’ has been limited due to high level of seed dormancy.In the study, the effects of different treatments (AgNO3, GA3, KT, TDZ and 4℃) on seed dominancy were studied.The results showed that the treatments of AgNO3, GA3 and 4℃ accelerated germination, produced high germination rate and improved the growth (fresh weight, seedling length and root development etc.) of P.ostii ‘Feng Dan’ seedling compared with the control to some extent. Related Articles | Metrics

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Introduction and Cultivation of Mesua ferrea HU Jian-xiang, LIU Meng 2008, 37(04): 38-41.  Abstract ( )   PDF (870KB) ( )   Mesua ferrea is a very famous and valuable tropical timber tree species in the world.It is very rare in China.Xishuangbanna Tropical Botanical Garden has started to introduce, cultivate and study on it since 1960.In 1989 more than three hectares of Mesua ferrea plantation has been established in the Botanical Garden and the plantation grows well.The paper dealt with the research such as the morphological and ecological characteristics, the seed collection and growth habits, and the propagation and cultivation techniques were discussed as well. Related Articles | Metrics

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Medicinal Plant Resources of Gentianaceae in Zhejiang Province XU Pan, PAN Ya-qin, YAO Zhen-sheng 2008, 37(04): 42-45.  Abstract ( )   PDF (889KB) ( )   The medicinal plants of Gentianaceae in Zhejiang province were introduced, including their species, geographic distribution, chemical composition, herb record, therapeutic effect etc., and some suggests were given to achieve the reasonable utilization of medicine resources. Related Articles | Metrics

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An Investigation of Fragrant Plants in Zhongshan City, Guangdong Province JIANG Qian-cai, HE Xiu-yun, XIU Xiao-juan, LI Li 2008, 37(04): 46-50.  Abstract ( )   PDF (865KB) ( )   According to preliminary statistics, there exists a total of 90 species and varieties falling into 64 genera, 39 families of fragrant plants in Zhongshan City, Guangdong Province. Among them, there are 6 species of gymnosperm plants belonging to 5 genera, 3 families, 74 species of dicotyledoneae plants belonging to 52 genera, 31 families, and 10 species of monocotylodoneae plants belonging to 7 genera, 5 families. The fragrant plants concentrate on Magnoliaceae, Lauraceae, Myrtacear, Rutaceae, Compositae, Verbenaceae, and Zingiberaceae. In this thesis, Cinnamomum camphora, Litsea cubeba, Gardenia jasminoides, Alpinia japonica, Houttuynia cordata etc. were mainly introduced. Base on the analysis of characteristics of the fragrant plants resources and the method of machining, some suggestions about how to rationally exploit them were put forward. Related Articles | Metrics

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Introduction of Xiamen Ficus Species Resources and Garden Applications DING Yin-long, TAN Zhong-qi, LIN Yi-ming 2008, 37(04): 51-54.  Abstract ( )   PDF (3583KB) ( )   Based on the investigation, there are 67 Ficus species (including introduced species) in Xiamen City.Ficus species resources play the important role in afforestation of Xiamen City.Ficus laco and Ficus altissima are the key species of green trees in Xiamen City by the survey results of 131 roads and streets with the important values of above 6%. Related Articles | Metrics

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Tissue Culture and Rapid Propagation of Plectranthus madagascanensis LIU Ji-sheng, GE Jing, Brits G., LI Ling 2008, 37(04): 55-55,58.  Abstract ( )   PDF (1630KB) ( )   Related Articles | Metrics

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Embryo Culture and Propagation of Eucalyptus urophylla×E. grandis WEI Da-qi, SHI Qun 2008, 37(04): 56-56,58.  Abstract ( )   PDF (1614KB) ( )   Related Articles | Metrics

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Tissue Culture and Rapid Propagation of Dendrobium henryi LIU Shi-quan 2008, 37(04): 57-58.  Abstract ( )   PDF (1390KB) ( )   Related Articles | Metrics

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Review on Taxol Content from Natural Taxus spp. WANG Yu-zhen, TONG Chuan, KE Chun-ting 2008, 37(04): 59-63.  Abstract ( )   PDF (873KB) ( )   There are many factors affecting the taxol content in Taxus spp.Lots of studies on the taxol in Taxus spp. have been done in China and abroad.The results indicats that the factors such as age, species, sites of tissue, phenology, environmental conditions all affect the taxol contents in Taxus spp.The influencing factors of taxol contents, the extraction methods of taxol, the taxol contents in natural and cultivated Taxus spp, and the content of taxanes in Taxus spp.are reviewed in this paper. Related Articles | Metrics

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Review of Studies on Sex Differentiation in Carica papaya LI Hui-hua, HE Jian, SU Ming-hua, LAI Rui-yun 2008, 37(04): 64-68.  Abstract ( )   PDF (880KB) ( )   Sex differentiation in papaya has been a hot subject of plant growth biology.The developments of the studies on sex differentiation in Carica papaya, including the development of morphology and cytology, genetic and genomic research, the regulation of sex differentiation, are reviewed in this paper. Related Articles | Metrics

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A Review on Research Methods of Urban Plant Diversity LENG Bing, WEN Yuan-guang 2008, 37(04): 69-71,75.  Abstract ( )   PDF (842KB) ( )   In this paper, the features of the great influence that urbanization produced on plant diversity are analyzed, and the methods of research about urban plant diversity are summarized.Further studies on the relationship between urbanization and biodiversity are also suggested. Related Articles | Metrics

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Development States of Subtropical Plant Science and Its Sustainable Development OUYANG Hai-bo, HUANG Zhi-ming, ZHENG Xiao-qian, LU Hai-qiang 2008, 37(04): 72-75.  Abstract ( )   PDF (837KB) ( )   The journal of Subtropical Plant Science started in 1972, which was sponsored by Fujian Institute of Subtropical Botany.With the over thirty-six years'developments, the impact factors of the journal were greatly improved.However, some problems and shortcomings are encountered during the development of the journal.In order to define the work thoughts on Subtropical Plant Science, the development states from 2000 to 2008 of the journal were discussed.And some necessary measures including correct orientation, construction of the internet editing service platform, extension of information exchange, etc., will be taken to achieve sustainable development of Subtropical Plant Science. Related Articles | Metrics