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10 September 2006, Volume 35 Issue 03 Previous Issue    Next Issue

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Genetic Mapping of the Region Including a Bacterial Blight Resistance Gene Xa12 in Rice BAO Si-yuan, TAN Ming-pu, LIN Xing-hua 2006, 35(03): 1-4.  Abstract ( )   PDF (901KB) ( )   Based on SSR analysis in an F2 population containing 143 plants from a cross between Java14 and ZZA, a high-resolution linkage map for the Xa12 region on chromosome 4 of rice was constructed.And SSR markers (RM349、RM348、RM255、MRG4611) were incorporated into it.This result provided a solid base for fine mapping and map-based cloning of Xa12 using SSR markers in F2 population derived from the cross of Java14 and ZZA. Related Articles | Metrics

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A Survey of Heavy-metal Content of Plants Growing on the Soil Polluted by Manganese Mine in Daxin County, Guangxi REN Li-min, LIU Peng, ZHENG Qi-en, ZHANG Xin-cheng, CHENG Zheng-xin 2006, 35(03): 5-8.  Abstract ( )   PDF (704KB) ( )   A survey of nine plants growing on the soil polluted by manganese mine in Daxin County, the Guangxi Zhuang Autonomous Region was carried out.The results indicated that the exceptional-high concentration of Mn was the most important limiting factor for plant growth among three metals (Mn, Zn and Ni).Pteris vittata, which roots showed good metal-enrichment of Mn and Ni, was turned out to have good tolerant ability of Mn, Zn and Ni according to the analysis in the paper.Miscanthus floridulus, Erigeron bonariensis, Polygonum lapathifolium and Erigeron canadensis were proved to have good Mn-tolerant ability.Microstegium gratum, Digitaria sanguinalis and Alocasia macrorrhiza were Zn-tolerant plants while Miscanthus floridulus and Erigeron canadensis were Ni-tolerant plants.Further researches which are of some significance to these plants will be still in process though hyperaccummulators of three heavy metals were not found in these plants. Related Articles | Metrics

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The Determination of APX Activity in Somatic Embryogenesis of Longan LI Hui-hua, LAI Zhong-xiong 2006, 35(03): 9-11.  Abstract ( )   PDF (734KB) ( )   APX activity which may be closely related to somatic embryogenesis was detected at all developmental stages of synchronized embryogenic culture of longan.And at least, it was proved that there were chloroplastas APX and cytosolic APX in longan.The change of gene transcription level was not accordant to that of APX activity. Related Articles | Metrics

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Dynamics of Different Forms of Calcium and Pectin in Ovary (Fruitlet) and Spring-flush Leaves of Two Citrus Cultivars around Flowering XIAO Jia-xin, PENG Shu-ang 2006, 35(03): 12-15.  Abstract ( )   PDF (718KB) ( )   The dynamics of calcium pectate, calcium oxalate, water soluble pectin and proto-pectin in the ovary (fruitlet) and spring-flush leaves of parthenocarpic Kamei Satsuma mandarin (Citrus unshiu Marc.) and self-pollinated Egan 1 tangerine (Citrus reticulata Blanco) around flowering were investigated.The results were as follows.Dynamics of Ca pectate concentrations in the ovary (fruitlet) and spring-flush leaves of two cultivars were similar, and they changed slightly, while dynamics of Ca oxalate concentrations in the ovary (fruitlet) were inverse between both cultivars.The concentration of Ca oxalate decreased gradually in the ovary (fruitlet) of Kamei, whereas that of Egan 1 increased significantly after flowering.The concentration of Ca oxalate in spring-flush leaves of both presented similarly increasing trends, and the concentrations of Ca pectate in the ovary (fruitlet) and spring-flush leaves and Ca oxalate in the ovary (fruitlet) of Egan 1 were at relatively high level.It was found that the dynamics of water soluble pectin in the ovary (fruitlet) and spring-flush leaves were obvious different between two cultivars.But the dynamics of proto-pectin of two cultivars were similar.Notable increases were observed for them after flowering.The concentrations of water soluble pectin and proto-pectin of Egan 1 were relatively high.Relationships between changes in concentrations of two forms of Ca and two forms of pectin in the ovary (fruitlet) and spring-flush leaves and development of leaves and fruits were discussed. Related Articles | Metrics

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Sugar Accumulation Process of Longyou Pomelo and Changes of Activities of Sucrose-metabolizing Enzymes PAN Yi-shan, CAI Xiao-dong, CAO Fang 2006, 35(03): 16-17,15.  Abstract ( )   PDF (674KB) ( )   Sugar accumulation and the changes of activities of sugar-metabolizing enzymes in the flesh of Longyou Pomelo were studied during the fruit development.The results showed that the contents of 3 kinds of soluble sugar were increased at the similar rate in the fruit developing process.The sucrose was the main sugar in the mature period and the late expanding period.In the process of sugar accumulation, the activities of sucrose phosphate synthase and sucrose synthase were higher.But the activity of the invertase decreased with the sucrose accumulation. Related Articles | Metrics

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Physiological Mechanism of Different Photosynthetic Rate in Leaves of Two Maize Strains SHI Man-rong 2006, 35(03): 18-21.  Abstract ( )   PDF (829KB) ( )   Significant differences of photosynthetic rate (Pn) in the leaves of two maize (Zea mays) strains (‘Shuang 105’ and ‘40×44’) growing in the field were observed. Compared with the strain of ‘Shuang 105’, the strain of ‘40×40’ had higher Pn, higher photo-chemical efficiency of PS Ⅱ (Fv/Fm and △F/Fm') at different development stages. Meanwhile, it had better plant height and leaf area, but it's content of chlorophyll was lower. According to the results of the experiment, ‘Shuang 105’ had higher concentration of intercellular CO2 (Ci) though it had lower stomatal conductance (Gs) and Pn. Hence, the differences in Pn between the two strains did not result from the difference in Gs, but probably from that in light reaction system. Related Articles | Metrics

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Effects of Two Inhibitors of Photorespiration on Quality, Yield and Some Physiological Properties of Strawberry JIN Hong, ZHU Feng-lin 2006, 35(03): 22-24.  Abstract ( )   PDF (734KB) ( )   Taking strawberry (Fragaria ananassa cv.Fengxiang) as material, two kinds of photorespiration inhibitors (NaHSO3 and INH) at different concentrations were sprayed onto the leaves of strawberry during the flowering season.The results showed that NaHSO3 (100 mg/L) and INH (0.5 mg/ml) could increase the leaf area, the chlorophyll content, and the photosynthetic rate.Meanwhile, the percentage of fertile fruit, single fruit weight, content of sugar and soluble solids increased significantly after spraying NaHSO3 and INH. Related Articles | Metrics

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Effects of IBA and NAA on Endogenous IAA and ABA in the Differentiation of Adventitious Root in Vitro of Elaeocarpus sylvestris GU Yun-jie, JIANG Bo 2006, 35(03): 25-27.  Abstract ( )   PDF (685KB) ( )   The contents of endogenous IAA and ABA in the differentiation of adventitious root in vitro of Elaeocarpus sylvestris were studied.The results showed that the contents of endogenous IAA and ABA in plantlets in vitro treated with IBA and NAA increased before rooting, and then began to decrease when the root was observed;the ratios of IAA to ABA were 2.526 and 3.226, respectively when the calli were visible.Treated without any hormones, the content of endogenous IAA maintained low level, but the content of endogenous ABA increased constantly in root differentiation.Accordingly the ratio of IAA to ABA was under 1.211. Related Articles | Metrics

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Application of Plant Ecological Adaptability in Hydroponics XU Wei-zhong, ZHU Li-xia, ZHAO Gen 2006, 35(03): 28-32,81.  Abstract ( )   PDF (973KB) ( )   It is a common phenomenon that almost all of plants have the characteristic of ecological adaptability.The environmental changes, especially environmental stresses, are the most important factors to affect the formation of the adaptability.The authors discuss the physiological, biochemical and ecological changes in the process of aquatic induction of plants.And it is suggested that artificial environment modeling methodology may be used to induce aerenchyma formation.Meanwhile, the integrated and practical technological method of aquatic induction of plants is summarized in this paper.The brilliant prospect of the methodology of aquatic induction of plants in production, life and ecology is also discussed. Related Articles | Metrics

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A Comparative Test of Lotus Cultivars GU Hui-zhen, ZHANG He-qing 2006, 35(03): 33-36.  Abstract ( )   PDF (673KB) ( )   The characteristics of early bud, early florescence, inflorescence of population, number of flowers, plant architecture, flower shape of 41 lotus cultivars were compared in this paper.The results indicated that two cultivars (‘Benison’ lotus and West Lake Red lotus) among lotus cultivars with big plant architecture were the best.Twelve lotus cultivars with middle and little plant architecture were highly appreciated and had economic value for their earlier inflorescence, more number of flower, and more beautiful flower shape and color. Related Articles | Metrics

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Influence of Different Activated Carbon Concentrations on Culture in Vitro of Cymbidium sinense WENG Jin-zhou, LIN Jia-geng, LIN Jiang-bo 2006, 35(03): 37-38,36.  Abstract ( )   PDF (672KB) ( )   Rhizomes were used as explants to study the influence of different activated carbon concentration on culture in vitro of Cymbidium sinense.The results indicated that the best frequency of induction of protocorms was obtained in the medium of MS containing NAA 2.0 mg/L, 10% coconut milk and activated carbon 1.0 g/L.The medium of MS with NAA 0.5 mg/L, BA 3.0 mg/L, 10% coconut and activated carbon 4.0 g/L was proper for differentiation of adventitious buds, and the medium of 1/2 MS with NAA 1.0 mg/L, BA 0.5 mg/L, 10% coconut and activated carbon 0.5~3.0 g/L was suitable for planting seed. Related Articles | Metrics

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Exotic Plants in Hainan Province SHAN Jia-lin, YANG Feng-chun, ZHENG Xue-qin 2006, 35(03): 39-44.  Abstract ( )   PDF (825KB) ( )   Based on the study of naturalized and semi-naturalized exotic plants on Hainan Island in recent years, 153 species of exotic plants are reported in this paper.Some invasive species not reported recent years but with extensive distribution over the Hainan Island are introduced.The composition, origin areas, life forms and harmful degree of these plants are discussed.The results are as follows.66.67% exotic species are from America, of which 96% are tropical Americas.Almost all herbaceous species from America distribute extensively and become harmful weeds in the farmfield, fruit garden, rubber tree forest and grassland in Hainan.The invasiveness and harmful degree of herbs and lianas are more serious than those of trees.Most herbs and lianas usually become monodominant communities and destroy the original ecological system of the plain and low hills. Related Articles | Metrics

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Resources of Cinnamon and Cassia Plants and Their Nomenclatures in China WANG Rui-jiang, TANG Yuan-jiang 2006, 35(03): 45-47.  Abstract ( )   PDF (650KB) ( )   General distribution and habits of six cinnamon and cassia species growing in China were briefly introduced, with nomenclature explanations to Chinese cassia (Cinnamomum aromaticum).It also indicated that the clarification to the taxonomic problems of Cinnamomum species was important for selective breeding. Related Articles | Metrics

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Determination of Myclobutanil Residues in Glycine max by Gas Chromatography CHEN Li-ping, LIN Zhi-ping 2006, 35(03): 48-50.  Abstract ( )   PDF (798KB) ( )   A method for determination of myclobutanil residues in Glycine max by gas chromatography was described.Samples were extracted with acetonitrile, followed by liquid-liquid partition and purified by neutral aluminum oxide column.The myclobutanil residues were analyzed by GC-ECD with a DB-1701 capillary column using N2 as the carrier gas at a column temperature of 260℃ with an extensive standard, vaporizing chamber temperature of 240℃ and detector temperature of 300℃.The results showed that the method was quick and accurate with a good linear relative coefficient of 0.9998 in the range of 0.05~2.00 mg/L, average recoveries of 91.1%~99.0%, a variation coefficient of 1.22%~2.94%, a limit of detection of 1.0×10-12 g, and a minimum determination concentration of 5.0×10-4 mg/kg. Related Articles | Metrics

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The Diseases and Pests on Osmanthus fragrans in Xiamen and Their Control LIN Zhi-wei 2006, 35(03): 51-53.  Abstract ( )   PDF (676KB) ( )   The plant diseases and insect pests on Osmanthus fragrans in Xiamen were investigated from 1998 to 2004.The results showed that there were 10 species of plant disease and pests, including 6 species of the sweet-scented osmanthus plant disease and 4 species of insect pests.Meanwhile their control strategies were suggested in this paper. Related Articles | Metrics

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Introduction of Three Landscape Plants from Taiwan and Their Application in Highway Greening in Xiamen WANG Yao-li 2006, 35(03): 54-56,82.  Abstract ( )   PDF (906KB) ( )   The biological characteristics and the main cultivation techniques of three landscape plants (Erythrina crista-galli, Flacourtia inermis and Callistemon×hybridus ‘Golden Ball’) introduced from Taiwan were described in this paper.Meanwhile, their applications in highway greening in Xiamen were investigated.The results showed that they were well grown and could bring in beautiful landscape in Xiamen. Related Articles | Metrics

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Tissue Culture of Swainsonia salsula GONG Zhen-cai, YANG Jun, TAN Xin 2006, 35(03): 57-57.  Abstract ( )   PDF (585KB) ( )   Related Articles | Metrics

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In Vitro Rapid Propagation of Melissa officinalis HONG Li-ping 2006, 35(03): 58-58.  Abstract ( )   PDF (658KB) ( )   Related Articles | Metrics

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Induction of Callus of Scutellaria baicalensis QI Xiang-jun, CHEN Xiu-qing, HE En-ming 2006, 35(03): 59-59,75.  Abstract ( )   PDF (689KB) ( )   Related Articles | Metrics

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Tissue Culture and Plant Regeneration of Salvia sclarea LEI Kai-rong, LIN Qing, WU Hong, HAO Feng 2006, 35(03): 60-60.  Abstract ( )   PDF (604KB) ( )   Related Articles | Metrics

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A Review of the Progress in Research on Chemical Constituents of Ilex WANG Cong-zhou, LIU Rong, OUYANG Ming-an 2006, 35(03): 61-69.  Abstract ( )   PDF (1256KB) ( )   At least 51 new constituents have been isolated from Ilex in recent five years, most of which were identified as triterpenoids showing various biological activities.The progress in study of chemical constituents of Ilex since 2000 was reviewed in this paper, presenting the structures and the 13C-NMR data of these constituents. Related Articles | Metrics

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A Review of Citrus Virus and Virus-like Disease and Virus-free Techniques in China MENG Xiang-chun, ZHONG Yun, LIU Yan, YI Gan-jun 2006, 35(03): 70-75.  Abstract ( )   PDF (806KB) ( )   Pathogen characters and the harmfulness to citrus production of citrus virus and virus-like disease, including Citrus Huanglongbing, Citrus Tristeza Virus, Citrus Exocortis Viroid and Citrus Tatter Leaf Virus, are described briefly.Recent progress on citrus virus-free techniques are summarized. Related Articles | Metrics

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A Review of Advances in Plant Anther Culture and Its Influencing Factors LI Shou-ling, ZHUANG Nan-sheng 2006, 35(03): 76-80.  Abstract ( )   PDF (851KB) ( )   Current situation of plant anther culture and researches on its influencing factors including plant genotype, physiological status, anther development period, culture medium and preconditioning are reviewed in this paper. Related Articles | Metrics