亚洲谷精草属植物研究(III)

该文对亚洲分布的E .barbeyanum ,E .dipsacoides,E .cristatum ,E .echinulatum ,E .hamiltonianum ,E .henryanum ,E .hookerianum ,E .kradungense,E .nautiliforme ,E .nigrum和E .thwaitesii等谷精草属 (EriocaulonL .) 11个种的分类问题进行了详细的研究 .补充并纠正了E .nigrumLec .和E .halmitoniamumMartius的形态描写 .公开发表新种E .pseudotruncatum和新变种E .truncatumHam .exMartiusvar.florensense.E .seticuspeOhwi,E .echinulatumMartiusvar.seticuspeOhwi,E .echinulatumMartiusvar.tenueSatake ,E .robinsoniiMoldenke和E .poilaneiMoldenke 5个种 (变种 )处理为同物异名     

亚洲谷精草属植物研究(III)

该文对亚洲分布的E.barbeyanum,E.dipsacoides,E.cristatum,E.echinulatum,E.hamiltonianum,E.henryanum,E.hookerianum,E.kradungense,E.nautiliforme,E.nigrum和E.thwaitesii等谷精草属(Eriocaulon L.)11个种的分类问题进行了详细的研究.补充并纠正了E.nigrum Lec.和E.halmitoniamum Martius的形态描写.公开发表新种E.pseudotruncatum和新变种E.truncatum Ham.ex Martius var.florensense.E.seticuspe Ohwi,E.echinulatum Martius var.seticuspe Ohwi,E.echinulatum Martius var.tenue Satake,E.robinsonii Moldenke和E.poilanei Moldenke 5个种(变种)处理为同物异名.     

安徽省薹草属(Carex Linn.)植物增补

报道采自安徽的薹草属3个新种、2个亚种和1个变种以及薹草属1个新组.即牯牛薹草Carex guniuensis S.W.Su,琅琊薹草Carex langyaensis S.W.Su,X.M.Fang,et al,缘喙薹草Carex rhynchophora Franch.var.margineorostris S.W.Su,大通薹草Carex datongensis S.W.Su,华阳薹草Carex truncatigluma C.B.Clarke subsp.huayangensis S.W.Su,长穗刻鳞薹草Carex incisa Boott subsp.longissima S.W.Su;1个新组:隐匿薹草组Sect.Infos-sae S.W.Su.Sect.nov.     

亚洲谷精草属植物研究(Ⅰ)

讨论谷精草属 (Eriocaulon L.) 世界性及亚洲分布的E. setaceum, E. australe, E. exangulare, E.willdenovianum, E. decemflorum, E.wightianum, E.cinereum, E. alpestre 8个种的分类问题. 补充纠正了E. alpestre Koern. 的形态描写.10个种(变种)处理为同物异名.     

桉树伞房属4个种在广东清新的早期生长表现

分析了引自澳大利亚东部的桉树伞房属4个种在广东省清新试验点5年生时的生长表现.方差分析表明,树种间、种源间、家系间在树高、胸径、材积生长量上均存在极显著的差异.表现最好的是大叶斑皮桉Corymbia henryi (S.T. Blake) K.D. Hill & L.A.S. Johnson,其次是斑皮柠檬桉C. variegata (F. Muell.) K.D. Hill & L.A.S. Johnson、柠檬桉C. citriodora (Hook.) K.D. Hill & L.A.S. Johnson和斑皮桉C. maculata (Hook.) K.D. Hill & L.A.S. Johnson.4个树种的平均树高为8.04 m,平均胸径为7.28 cm,平均单株材积为0.021 9 m3.其中斑皮柠檬桉10248种源44号家系的生长量最大,其平均树高为10.35 m,平均胸径为9.70 cm,平均单株材积为0.040 00 m3.初步选出20个家系,占家系总数的21.98%.     

Expression,Characterization and Antimicrobial Ability of a Variant T4 Lysozyme in Pichia pastoris

T4 lysozyme was engineered with disulfide bonds and expressed in Pichia pastoris. The secreted proteins were purified and made into powder by lyophiliza-tion. Recombinant protein purity was more than 70% measured by HPLC. The lytic activity of variant T4-lysozyme was measured by the lysis of the cel wal of Xan-thomonas oryzae pv. oryzae, X. oryzae pv. oryzicola, Ralstonia solanacearum comb. nov, Clavibacter michiganensis subsp. michiganensis, X. campestris pv. mal-vacearum, Fusarium oxysporium sp. vasinfectum, Verticil ium dahliae kleb. Inhibition zone assay showed that variant T4 lysozyme significantly inhibited X. o. oryzicola and X. c. malvacearum. The antifungal activities of this protein against F. o. vasin-fectum and V. d. kleb were also analyzed.     

金花茶新变种——防城金花茶

本文论述了将长柱金花茶Camellia chrysantha(Hu)Tuyama form.longistyla S.L.Mo et Y.C.Zhong升格为新变种,即C.chrysantha(Hu) Tuyama van.,longistyla(S.L.Mo et Y.C.Zhong)J.Y. Chen et X.L.Wang,var.D.ncv.的多种理由,主要是花粉在光学显微镜下的形态羞男l】,尤其是扫描电镜下的外壁纹饰差异。同时,相应将中名改称防城金花茶,借以表明其主要产地。     

鸡舍铺垫保健砂好处多

一、鸡舍铺垫保健砂的好处 1.供砂浴.鸡喜砂浴,通过砂浴既可保持鸡体清洁,又可促进鸡体健壮.砂浴的砂子以细砂为好. 2.助消化.场舍铺垫砂料后,鸡可充分啄食砂粒,促进胃内食物消化. 3.防疫病.鸡舍和活动场所铺垫砂粒后,能保持干燥和空气新鲜.鸡砂浴有助于杀死体外寄生虫. 4.助散热.鸡舍铺垫砂粒后,鸡可以通过皮肤与砂粒接触而散失鸡体余热,防止中暑.     

Identification and Analysis of Genetic Diversity Structure Within Pisum Genus Based on Microsatellite Markers

To assesse the genetic diversity among wild and cultivated accessions of 8 taxonomic groups in 2 species, and 5 subspecies under Pisum genus, and to analyze population structure and their genetic relationships among various groups of taxonomy, the study tried to verify the fitness of traditionally botanical taxonomic system under Pisum genus and to provide essential information for the exploration and utilization of wild relatives of pea genetic resources. 197 Pisum accessions from 62 counties of 5 continents were employed for SSR analysis using 21 polymorphic primer pairs in this study. Except for cultivated field pea Pisum sativum ssp. sativum var. sativum （94 genotypes）, also included were wild relative genotypes that were classified as belonging to P. fulvum, P. sativum ssp.abyssinicum, P. sativum ssp. asiaticum, P. sativum ssp. transcaucasicum, P. sativum ssp. elatius var. elatius, P. sativum ssp. elatius var. pumilio and P. sativum ssp. sativum var. arvense （103 genotypes）. The PCA analyses and 3-dimension PCA graphs were conducted and drawn by NTSYSpc 2.2d statistical package. Nei78 genetic distances among groups of genetic resources were calculated, and cluster analysis using UPGMA method was carried out by using Popgene V1.32 statistical package, the dendrogram was drawn by MEGA3.1 statistical package. Allelic statistics were carried out by Popgene V1.32. The significance test between groups of genotypes was carried out by Fstat V2.9.3.2 statistical package. 104 polymorphic bands were amplified using 21 SSR primer pairs with unambiguous unique polymorphic bands. 4.95 alleles were detected by each SSR primer pair in average, of which 65.56% were effective alleles for diversity. PSAD270, PSAC58, PSAA18, PSAC75, PSAA175 and PSAB72 were the most effective SSR pairs. SSR alleles were uniformly distributed among botanical taxon units under Pisum genus, but significant difference appeared in most pairwise comparisons for genetic diversity between taxon unit based groups of genetic resources. Genetic diversity level of wild species P. fulvum was much lower than the cultivated species P. sativum. Under species P. sativum, P. sativum ssp. sativum var. sativum and P. sativum ssp. asiaticum were the highest in gentic diversity, followed by P. sativum ssp. elatius var. elatius and P. sativum ssp. transcaucasicum, P. sativum ssp. elatius var. pumilio, P. sativum ssp. sativum vat. arvense and P. sativum ssp. abyssinicum were the lowest. Four gene pool clusters were detected under Pisum genus by using PCA analysis. Gene pool ＂fulvum＂ mainly consisted of wild species Pisum fulvum, gene pool ＂abyssinicum＂ mainly consisted of P. sativum ssp. abyssinicum, and gene pool ＂arvense＂ mainly consisted of P. sativum ssp. sativum var. arvense. While gene pool ＂sativum＂ were composed by 5 botanical taxon units, they are P. sativum ssp. asiaticum, P. sativum ssp. elatius var. elatius, P. sativum ssp. transcaucasicum, P. sativum ssp. elatius var. pumilio and P. sativum ssp. sativum var. sativum. ＂sativum＂ gene pool constructed the primary gene pool of cultivated genetic resources; ＂fulvum＂ gene pool, ＂abyssinicum＂ gene pool and ＂arvense＂ gene pool together constructed the secondary gene pool of cultivated genetic resources. Pairwise Nei78 genetic distance among botanical taxon based groups of pea genetic resources ranged from 7.531 to 35.956, 3 large cluster groups were identified based on the UPGMA dendrogram. Group Ⅰ equals to ＂sativum＂ and ＂arvense＂ gene pools, Group Ⅱ equals to ＂abyssinicum＂ gene pool, and Group Ⅲ equals to ＂fulvum＂ gene pool. The UPGMA clustering results generally supporting the PCA clusting results. There were significant differences among most botanical groups under Pisum genus, with clear separation of four gene pools for genetic diversity structure. The research results partially support the traditional botanical taxonomy under Pisum genus, and pointed out its advantage and shortcoming. In order to broaden the genetic bases of pea varieties, the genetic potentials in the four gene pools should be thoroughly exploited.     

砂仁历史行情

春砂仁,姜科草本植物阳春砂Amonum vilqsum Louv.或海南砂A.longiligulareT.L.Wu或缩砂A.xanthioides Wall.的成熟果实.植株为多年生常绿草本植物,种植于深山湿润的地方,宜有阔叶林荫蔽,需轻微散射阳光照射.果实立秋季节成熟,即可收获.生长周期为下种3年开始挂果,第5年丰产,以后逐渐老化.主要分布栽培于中国广东、云南等地方,但以广东阳春砂仁质量为最佳.     

Analysis of the Genetic Relationships in Chinese Ziziphus with SRAP Markers

The phylogenic and genetic relationships in germplasm resources of Chinese Ziziphus were studied at molecular levels, for providing new molecular evidences of classification, protection, and utilization of germplasm resources of Ziziphus. The sequence-related amplified polymorphism （SRAP） was assessed to analyse the genetic relationships among 14 species of Ziziphus, 11 cultivars of Z. jujuba Mill., and one outgroup. A total of 580 DNA bands were amplified by 19 selective primers, 570 of which （98.28%） were polymorphic. The average number of polymorphic DNA bands amplified by each primer was 30. The genetic similarities of 26 sample materials were between 0.22 and 0.99. UPGMA method cluster analysis showed that 26 sample materials were classified into six cluster groups with the genetic similarity of 0.28. The results showed that SRAP technique is efficient in studying genetic relationships among Ziziphus, Z. jujuba Mill. and Z. acidojujuba C. Y. Cheng et M. J. Liu which should be treated as one species, and further infraspecific classification of Z. jujuba Mill. should be classified into two subspecies; the scientific names of new taxa, Chinese jujube, and wild jujube were Ziziphus jujuba Mill. subsp, jujuba and Ziziphus jujuba Mill. subsp, spinosa （Bunge） J. Y. Peng, X. Y. Li et L. Li, respectively. Z. xiangchengensis Y. L.Chen et P. K. Chou, Z. montana W.W. Smith and Z. mairei Dode might be originated from same ancestry. Z xiangchengensis Y. L. Chen et P. K. Chou and Z. montana W.W. Smith should be treated as one species. The infrasubspecific taxon of Z. jujuba Mill. was not suitable to set up varieties.     

中国泡桐属新植物

本文发表了中国泡桐属1新种、2新变型,即山明泡桐Paulownia lamprophylla Z.X.Chang etS.L.Shi,sp.nov.;圆叶山明泡桐P.lamprophylla f.rotanda Z.X.Chang et S.L.Shi.fnov.;白花兰考泡桐P.elongata S.Y.Hu f.alba Z.X.Chang et S.L.Shi.f.nov.除外部形态特征外,并从叶片解剖、生物学、生态学及木材构造等方面论证了新种与邻近种的差异。     

7-8月份适宜种植的花卉品种

蛇莓别名蛇泡草、龙吐珠,蔷薇科、蛇莓属.分布辽宁以南各省区,欧洲、美洲也有.多年生草本,有长匍匐茎,被柔毛.叶有长柄,小叶3枚,倒卵形或菱状长圆形,边缘具钝锯柄,花单生、黄色.瘦果卵形.花期6-8月.喜温暖湿润环境.较耐旱,耐瘠.对土壤要求不严.常生于田边、沟边或村旁较湿润的地方.一般用播种或分株繁殖.播种:于9-10月采收果实,取出种子,洗净晾干,留翌年春播.分株:用铲挖起着地生根的茎节,然后按每段1～2个茎节截断,盆栽或地栽.蛇莓生活力较强,夏季结的鲜红晶莹的果实颇为诱人.宜栽在斜坡作地被植物.全株可作药用.     

亚洲谷精草属植物研究(I)

讨论谷精草属 (EriocaulonL .)世界性及亚洲分布的E .setaceum ,E .australe,E .exangulare,E .willde novianum ,E .decemflorum ,E .wightianum ,E .cinereum ,E .alpestre 8个种的分类问题 .补充纠正了E .alpestreKoern .的形态描写 .10个种 (变种 )处理为同物异名 .     

枝孢属Cladosporium分类研究

 本文报道枝孢属菌种10个国内新纪录种: 尖孢枝孢 Cladosporium.oxysporum B.&;C.洋葱枝孢 C.allii-cepa (Ranojevic) Ell,葱属枝孢 C.allii (Ell.&; Martin)P.M.Kirk &;Crompton,锈子器枝孢 C.aecidiicola Thum,兰枝孢 C.orchidearum.Cke.&; Massee,树脂枝孢 C.resinae (Lindau) de vries,柳枝孢 C.salicis-sitchensis Dearn.&; Barth.,香蕉枝孢 C.musae Mason,隆起枝孢 C.elatum (Harz.) Namnf,刺炱枝孢 C.ballaynae Deighton,各种均有症状,病原物形态描述及插图、寄生植物、地理分布,每种后都有较详细的讨论.     

雪菜罐头巧加工

雪菜属十字花科芸苔属芥菜种,是分蘖芥的一个变种.雪菜的别名有雪里蕻、九头芥、烧菜、排菜. 1.选料、预处理.①选料.选用色泽透明、黄亮,味清香,组织脆嫩,叶少茎多且茎较细小的雪菜.②切叶.切去黄叶和顶部发黑的叶片.③洗涤.用流动水逐株淘洗,但不宜浸于水中太长时间.充分洗去泥沙杂质,挤干水分.     

降血压食品9款

豆腐.常吃豆腐能降低人体内的胆固醇.常用豆腐煮芹菜叶吃,有助于降低血压. 芹菜.常吃芹菜炒肉丝,有保护血管和降低血压的功效.洋葱.常吃洋葱,有降血脂、预防血栓形成的功效,亦能使高血压下降. 葱.能减少胆固醇在血管壁上的积累.常食葱煮豆腐,有协同降低血压之功效.     

低酚棉秸杆及其蘑菇菌糠的营养成分研究

研究了低酚棉的秸杆及其种蘑菇后的菌糠的营养成分。结果表明 ,低酚棉秸杆含水分 6 .2 7% ,粗蛋白 6 .0 1% ,粗脂肪 0 .4 7% ,无氮浸出物 4 .80 % ,粗灰分5.0 7% ,钙 1.81% ,磷 0 .0 8% ,纤维素 4 2 .2 6 % ,半纤维素 2 0 .80 % ,木质素 14 .4 3% ;低酚棉秸杆种蘑菇后的菌糠含水分 6 .33% ,粗蛋白 10 .38% ,粗脂肪 0 .51% ,无氮浸出物12 .56 % ,粗灰分 17.84 % ,钙 3.0 6 % ,磷 0 .35% ,纤维素 2 4 .0 4 % ,半纤维素 17.53% ,木质素 10 .51%。所以都可作草食家畜的饲料资源     

西洋参锈腐病病原研究

从陕西秦巴山区及关中西洋参种植区的种子、锈腐病根及参地土壤中,分离到8种柱孢属(Cylindrocarpon)真菌和一个变种.C.destructans(Zins.)Scholtcn,C.obtusisporum(Cook＆Harkcss)Wollcnw,C.vaginae C.Booth,Y.M.Clayton＆MuUsherwood及C.victoriae(P.Hcnncn cx Wr.)Wollcnw.为引致当地西洋参锈腐病的致病菌.其中以C.destructans致病性最强,并在数量和存在的普遍性方面占优势,C.obtusisporum次之.上述4种柱孢中的后3种,及C.didymum(Harting)wallcnw.,C.heteronema(Bcrk＆Br.)Wollcnw.,C.decumbens Wollcnw.和C.destructans(Zins)Scholtcnvar.crasum Wollcnw.为国内新记录.文中对主要锈腐病原的科学名称进行了讨论。     

宝宝喜吃的7款营养粥

1.牛奶粥.原料:大米50克,奶粉3调羹.做法:将大米淘洗干净,用水泡1小时,放人锅中熬成粥.服食时盛出1碗粥,加入3调羹奶粉,搅拌均匀即可. 2.蛋黄粥.原料:鸡蛋1个,大米50克.做法:将大米淘洗干净,用水泡1小时,放人锅中以文火熬煮成粥.将鸡蛋煮熟,取鸡蛋黄研成粉末,加入粥中混合均匀即可.煮好的鸡蛋白可直接给宝宝吃.