Mikania micrantha, mangrove forests are suffering a large area of degradation. Parasitism of Cuscuta campestris is an effective way to control the destruction of Mikania micrantha. In order to explore the effects of parasitism of Cuscuta campestris on mangrove plants and to provide the basis for the selection of the parasitism of C. campestris to control the invasion of Mikania micrantha in the mangrove community. In this study, through common-garden experiments, leaf chlorophyll fluorescence parameters were determined by PAM-2100 portable modulated chlorophyll fluorescence analyzer for the leaves of three true mangrove plant species(Acanthus ilicifolius, Bruguiera gymnorrhiza and Kandelia candel)and two mangrove associates(Cerbera manghas and Heritiera littoralis), uninfected or infected by Cuscuta campestris. The results showed that the infection with Cuscuta campestris had no significant effects on F_v/F_m or more sensitive F_v/F_o in the PS Ⅱ of seedling of the mangrove species. By the end of the experiment, we found that although C. campestris could initiate haustoria on stems of mangrove plants, it failed to finish successful parasitism and then died. Therefore, the application of C. campestris to control Mikania micrantha invasion into mangrove forests is safe.]]> 2018/10/28 18:24:41 1,2, CHEN Qing^1,2, LI Ting^1,2, YE Wanhui¹, SHEN Hao^1*]]> LI Mengjiao^1,2, CHEN Qing^1,2, LI Ting^1,2, YE Wanhui¹, SHEN Hao^1* 5true Rhizophora stylosa, stems and leaves of Kandelia candel, leaves of Pongamia pinnata and stems of Aegiceras corniculatum were extracted by ultrasonic extraction method. The cytotoxicity of 95% ethanol extracts from these four mangrove plants on prostate cancer cells DU145 with 24, 48 and 72 h and PC3 were tested by MTS assay. The results showed that the anti-proliferation on prostate cancer cell DU145 of 95% ethanol extract of A. corniculatum stems was the strongest among the tested samples with IC₅₀ value of 75.23, 88.81 and 76.53 μg·mL^-1 to DU145, respectively. On this basis, the ethanol extract of A. corniculatum stems was successively treated with petroleum ether, ethyl acetate and n-butanol to yield four fractions, then the ethyl acetate fraction of A. corniculatum stems(EACS)were tested for anticancer activities against nineteen tumor cells(HT-29, SW480, DLD-1, COLO205, PC3, DU145, SKOV3-S, A2780, SGC-7901, Tca-8113, MDA-MB-231, HepG2, SMMC-7721, Bel-7402, MHCC-97H, Hela, PANC-1, EJ, A549)and antiproliferative effects of three normal cells(HUVEC, EC304, RWPE-1)by MTS assay, the effects of EACS on proliferation of HT-29, DLD-1, SW480, DU145, PC3 and SKOV3-S cells were detected by the colony formation assay. The results showed that EACS exhibited different degrees of inhibitory effect on proliferation of sixteen tumor cells and three normal cells, and had the stronger inhibitory effect on the proliferation of RWPE-1 with IC₅₀ value of 22.78 μg·mL^-1 after 72 h drug treatment. EACS inhibited the colony formations of HT-29, DLD-1, SW480, DU145, PC3 and SKOV3-S cells in a dose-dependent manner.]]> 2018/10/28 18:24:41 1,2, LUO Hua¹, DENG Jiagang^1,3, HAO Erwei^1,3, YI Xiangxi^1,2,3, FENG Xiaohui^1,2, WEI Linyao^1,2, XIA Zhongshang^1,2, XU Weijie^1,2, XIE Jinling^1,3, HOU Xiaotao^1,2,3*]]> TAN Dechao^1,2, LUO Hua¹, DENG Jiagang^1,3, HAO Erwei^1,3, YI Xiangxi^1,2,3, FENG Xiaohui^1,2, WEI Linyao^1,2, XIA Zhongshang^1,2, XU Weijie^1,2, XIE Jinling^1,3, HOU Xiaotao^1,2,3* 4true Scaevola sericea plays important roles in sand-fixation, wind resistance and ecological restoration on the vegetation of islands and coastal zones. In this study, we analyzed the morphological and anatomical characteristics, antioxidant capacity, resistant substance contents and nutrient compositions of S. sericea growing in the natural habitat in Paracel Islands. The results showed that S. sericea was a heliophyte with thick leaf and epicuticle, low stomatal density and large vessel diameter and hydraulically weighted vessel diameter, which helps S. sericea adapt to the drought, high temperature and intense light irradiation. The activities of superoxide dismutase and catalase were higher than those of other plants under stress, and the high content of abscisic acid in the leaves revealed that S. sericea had strong adaptability and resistance. The contents of nutrient elements in the leaves of S. sericea were higher than those in rhizosphere soil, indicating that S. sericea has strong stress resistance and good adaptability to the arid and barren environment.]]> 2018/10/28 18:24:41 1,2, LIU Nan¹, REN Hai¹, WANG Xinhui^1,3, LIU Nian², JIAN Shuguang^1*]]> XU Beibei^1,2, LIU Nan¹, REN Hai¹, WANG Xinhui^1,3, LIU Nian², JIAN Shuguang^1* 3true Silene fortunei Vis. var. kiruninsularis(Masam.)Ying of family Caryophyllaceae was a newly recorded species of Chinese mainland, Tamarix chinensis Lour. of family Tamaricaceae and Melilotus albus Medik. of family Fabaceaewere were newly recorded species of Zhejiang. The morphological descriptions and photos were provided. Their economic values and ways of utilization were reviewed. The voucher specimens were preserved in the herbarium of Zhejiang A & F University(ZJFC).]]> 2018/10/28 18:24:41 GAO Haojie 2true Casuarina equisetifolia, Spinifex littoreus, Ipomoea pes-caprae and Sesuvium portulacastrum were studied, and the effects of pretreating methods on the determination of non-structural carbohydrate contents of plants by phenol-concentrated sulfuric acid method were analyzed, including the existence of the peel and mesh size. The results were as follows:(1)When peeled, NSC, soluble sugar and starch contents of the Casuarina equisetifolia samples all had a decreasing trend compared with the control group, especially significant in the soluble sugar contents of the young-aged forest and the middle-aged forest(P<0.05), but had no difference in both starch contents and all component contents in adult ones. The younger the age of samples, the greater the effect of peeling pretreatment on NSC and its component contents in trees, especially affected on soluble sugar, so we suggest to preserve tree bark when samples are processed.(2)The contents of NSC and its components of different psammophytes's branches(stem)all raised with the increase of mesh size, and there were significant differences(P<0.05)in the Casuarina equisetifolia's and Spinifex littoreus's branches(stem)samples which passed through the 100 and 18 mesh sieve. Except for Spinifex littoreus, all psammophytes' leaves(assimilating branches)samples did not change much under different mush sizes and had no significant difference.(3)The higher the content of mechanical tissue in the samples, the more significant difference in the content of NSC and its components extracted by different mesh sizes. Considering the difficulty in obtaining samples and the accuracy of the determination of NSC content, we suggest that all branches and leaves of psammophytes should be processed by 100 mesh sieve. The conclusion of this study can guide the sample processing methods of related research in the coast of South China, standardize experimental methods and improve the comparability among different studies.]]> 2018/10/28 18:24:41 1, DU Jianhui^1,2*, QIN Jing¹, ZHANG Qi¹, SHAO Jiayi¹]]> WANG Song¹, DU Jianhui^1,2*, QIN Jing¹, ZHANG Qi¹, SHAO Jiayi¹ 1true