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杏属(蔷薇科)一新种 总被引:2,自引:0,他引:2
发表了蔷薇科杏属的一个新种,即仙居杏(Armeniaca Xianjuxing J.Y.Zhang et Z.X.Wu),其与普通杏(Armeniaca vulgaris Lam.)的区别在于叶片两面具有短柔毛,花梗或果梗长1~1.2 cm,花瓣边缘钝锯齿或小裂片状,萼片边缘有小钝锯齿。 相似文献
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野生植物甜菜树嫩茎叶的营养成分分析 总被引:5,自引:0,他引:5
甜菜树[Yunnanopilia longistaminea(W.Z.Li)C.Y.Wuet D.Z.Li]为山柚子科(Opiliaceae)甜菜树属(YunnanopiliaC.Y.Wu et D.Z.Li)植物,小乔木,主要分布于云南红河谷地区海拔1 000~1 400 m的河谷密林中,邻近的云南东南部和广西西南部也有分布[1].每年3-8月间当地民众主要采食其嫩茎叶,炒食、做汤或腌制都鲜甜爽口,一直是当地非常受欢迎的特色野菜,鲜菜市场价格远高于一般栽培蔬菜和野生蔬菜的价格,且供不应求,具有广阔的市场开发前景.本文对甜菜树可食部分嫩茎叶的水分、灰分、总酸、总糖、碳水化合物、粗蛋白质、粗脂肪、Vc、氨基酸及矿物质含量进行了分析,为甜菜树的开发利用提供科学依据. 相似文献
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刺叶柄棘豆的一个新变型--白花刺叶柄棘豆 总被引:5,自引:5,他引:0
描述了棘豆属(豆科)刺叶柄棘豆(Oxytropis acipblla Ledeb.)的一个新变型:白花刺叶柄棘豆O.aciphylla Ledeb.f.albiflora Z.Y.Chang,Z.H.Wu et L.R.Xu。原变型的花冠为红紫色或蓝紫色,而新变型的花冠为白色。 相似文献
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梳角窃蠹的生物学与防治(鞘翅目:窃蠢科) 总被引:3,自引:0,他引:3
梳角窃蠹(Ptilinus fuscus Geoffroy)在青海省东部对杨树房木的蛀损最高达78.43%,平均为36.67%;房屋平均蛀危年限为20.46±9.42年.青杨干材的抗弯强度(kg/cm2)与其表面的蛀孔量(孔/200cm2)呈幂函数曲线相关:Y=559.9X-0.2042.本种窃蠹2年1代.成虫主要发生于6月中、下旬至7月上、中旬;海拔每升高100米,发生期约推迟3.6天左右.成虫发生期喷洒80%敌敌畏200—400倍液4—5次,毒杀成虫有效.管氏肿腿蜂(Scleroderma guani Xiao和Wu)对潜藏在干材深层的窃蠹幼虫和蛹,有较高的寄生力. 相似文献
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Tao Zuo Jinshuai Shan Yang Liu Rong Xie Xiaochun Yu Chen Wu 《Translational oncology》2018,11(2):346-352
N-Acetylgalactosaminyltransferase-14 (GALNT14) is a member of acetylgalactosaminyltransferases family. We have shown that GALNT14 could promote breast cancer cell invasion. However, the underlying molecular mechanism is unclear. Here, using yeast two hybrid, we find that EGF-containing fibulin-like extracellular matrix protein 2 (EFEMP2) interacts with GALNT14. Both in vitro and in vivo binding assays show that EFEMP2 is associated with GALNT14. Moreover, we find that GALNT14 mediates glycosylation of EFEMP2. EFEMP2 significantly increased the invasion ability of breast cancer cells including MCF-7 and MBA-MD-231 cells, and this phenomenon is suppressed by knockdown expression of GALNT14. In addition, the GALNT14-dependent O-glycosylation of EFEMP-2 regulates the stability of EFEMP-2 protein in breast cancer cells. Taken together, our results demonstrate a novel molecular mechanism underlying breast cancer invasion. 相似文献
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Tianhang Luo Jiangman Zhao Zhengmao Lu Jianwei Bi Tao Pang Hangtian Cui Biao Yang Wushuang Li Yu Wang Shouxin Wu Xuchao Xue 《Translational oncology》2018,11(5):1080-1089
Previous studies proved that long noncoding RNAs (lncRNAs) play important role in human cancer. However, the knowledge of genome scale expression of lncRNAs and their potential biological function in gastric cancer is still lacking. Next generation RNA sequencing (RNA-seq) was performed on tumor tissues and matched adjacent normal tissues of six diffuse gastric cancer (DGC) patients. Then we performed a comprehensive analysis on lncRNAs and mRNA. Fifty-eight lncRNAs were upregulated and 54 lncRNAs were downregulated in diffuse gastric cancer tissue compared with adjacent tissue. The numbers of up- and downregulated mRNAs were 306 and 161, respectively. In addition, we inferred the function of lncRNAs by construction of a co-expression network for deregulated mRNAs and lncRNAs. Co-expressed genes of MEF2C-AS1 and FENDRR were enriched to RAS and TGF-beta signaling pathway. MEF2C-AS1 and FENDRR expression were re-evaluated by Real-time Quantitative PCR in 42 DGC patients' tumor and normal tissues, and other 46 DGC patents' and 21 healthy controls' plasma. Validation data showed MEF2C-AS1 and FENDRR were significantly downregulated in tumor tissues compared with normal tissues. And decreased FENDRR are associated with aggressive tumor characteristics including more advanced stage (P = .030), poor differentiation (P = .043) and lymphatic metastasis (P = .001). The expression level MEF2C-AS1 was significantly lower in DGC patients' plasma than that in healthy controls' plasma. In gastric cancer cell lines, knock-down of MEF2C-AS1 or FENDRR reduced the protein levels of FAT3, NTN1 and LYVE1 (the co-expressed genes), which were related with gastric cancer cell proliferation and invasion by previous studies. In addition, knock-down of MEF2C-AS1 or FENDRR promoted aggressive tumor behaviors in in-vitro assays. In this study, we provide a valuable resource of lncRNAs which might play important roles in the function of oncogenes or tumor suppressors affecting the development and progression of diffuse gastric cancer. 相似文献