新加坡華人黃培茂在海南

黃培茂先生是新加坡新崖控股私人有限公司的董事經理,身材魁梧,性格爽朗,談吐風趣幽默,所到之處特別引人注目。事業有成黄先生今年四十八歲,祖籍海南省瓊海縣九曲江鄉培蘭村。一九四一年,他出生在新加坡一個貧寒的海員家庭,稍長即由父母擕返故里谌f泉河畔,他接受了中華民族文化的熏陶,養成了艱苦奮鬥、勇於進取的品性。一九五八年,他以優異成績畢業於瓊海縣華僑中學後,旋即重返新加坡,先在上海書局當店員。儘管工資低而工作量大,但從小酷愛讀書的他不懼艱苦。

Effect of introduction of exogenous strain Leptospirillum ferriphilum YSK on functional gene expression,structure,and function of indigenous consortium during pyrite bioleaching

Leptospirillum ferriphilum YSK was added to a native consortium of bioleaching bacteria including Acidithiobacillus caldus,A.thiooxidans,A.ferrooxidans,Sulfobacillus thermosulfidooxidans,Acidiphilium spp.,and Ferroplasma thermophilum cultured in modified 9K medium containing 0.5%(W/V)pyrite.The bioleaching efficiency markedly increased.Changes in community structure and gene expression were monitored with real-time PCR and functional gene arrays.Dynamic changes that varied in different populations in the consortium occurred after the addition of L.ferriphilum YSK,with growth of A.caldus S1,A.thiooxidans A01,Acidiphillum spp.DX1-1 promoted the growth of Ferroplasma L1,inhibited that of S.thermosulfidooxidans ST,and exerted little effect on that of A.ferrooxidans CMS.Genes encoding ADP heptose,phosphoheptose isomerase,glycosyltransferase,biotin carboxylase,and protoheme ferrolyase from L.ferriphilum,acetyl-CoA carboxylase from Acidiphillum spp.,and doxD from A.caldus were up-regulated in 0-20 h.Genes encoding lipid A disaccharide synthase LpxB,glycosyl transferase,and ADP heptose synthase from A.ferrooxidans were up-regulated in 0-8 h and then down-regulated in 8-20 h.Genes encoding ferredoxin oxidoreductase from Ferroplasma sp.were up-regulated in 0-4 h,down-regulated in 4-16 h,and again up-regulated in 16-20 h.CbbS from A.ferrooxidans was down-regulated in 0-20 h.

悼伯渠同志

(一) 参加革命忆同盟,民国虽成似梦空。重組中华革命党,伯渠襄贊著丰功。(二) 十月光芒照万方,联俄联共好主張。中山改組国民党,还仗伯渠作桥梁。(注) (注)共产国际代表馬麟到桂林会晤孙中山,系由李大釗同志函伯渠同志作介紹。