Population and community level approaches for analysing microbial diversity in natural environments

被引:99
作者
Ovreås, L [1 ]
机构
[1] Univ Bergen, Dept Microbiol, N-5020 Bergen, Norway
关键词
diversity; DNA analysis; microbial communities; phenotypic approaches; phylogeny;
D O I
10.1046/j.1461-0248.2000.00148.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The enormous diversity available at the microbial level is just beginning to be realized. The richness of diversity amongst the bacteria that have been described so far is between 2 and 3000, whereas estimates indicates that millions of microorganisms still remains to be discovered, Microbiologists have realized that there are at least a dozen major evolutionary groups of the microbial life forms on earth (bacteria, fungi, algae and protozoa) that are even more diverse than the Letter known animal and plant kingdom. Indeed, we can state that microorganisms dominate the tree of life. Microorganisms have inhabited Earth for more than 3.7 billion years, whereas plants and animals have evolved rather recently in Earth's history. Possible reports of evidence for microbial life on Mars is also consistent with the concept that microorganisms precede plants and animals on Earth. The applications of molecular-phylogenetic techniques have provided the tools fur studying natural microbial communities, including those that we are not able to grow in the laboratory. The utilization of these techniques has resulted in the discovery of many new evolutionary lineages, some of them only distantly related to known organisms. Here I discuss some environmental factors controlling bacterial diversity in different environments and the utility of modern methods developed for describing this diversity.
引用
收藏
页码:236 / 251
页数:16
相关论文
共 106 条
[1]  
Acinas SG, 1999, APPL ENVIRON MICROB, V65, P514
[2]   AEROBIC BIODEGRADATION POTENTIAL OF SUBSURFACE MICROORGANISMS FROM A JET FUEL-CONTAMINATED AQUIFER [J].
AELION, CM ;
BRADLEY, PM .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1991, 57 (01) :57-63
[3]   PHYLOGENETIC IDENTIFICATION AND IN-SITU DETECTION OF INDIVIDUAL MICROBIAL-CELLS WITHOUT CULTIVATION [J].
AMANN, RI ;
LUDWIG, W ;
SCHLEIFER, KH .
MICROBIOLOGICAL REVIEWS, 1995, 59 (01) :143-169
[4]  
[Anonymous], 1996, MOL MICROBIAL ECOLOG
[5]  
[Anonymous], SOIL BIOCH
[6]  
ATLAS RM, 1984, ADV MICROB ECOL, V7, P1
[7]  
Bååth E, 1998, APPL ENVIRON MICROB, V64, P238
[8]  
BAATH E, 1992, APPL ENVIRON MICROB, V58, P4026
[9]   ADAPTATION OF AQUATIC MICROBIAL COMMUNITIES TO HG-2+ STRESS [J].
BARKAY, T .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1987, 53 (12) :2725-2732
[10]   COINCIDENT PLASMIDS AND ANTIMICROBIAL RESISTANCE IN MARINE-BACTERIA ISOLATED FROM POLLUTED AND UNPOLLUTED ATLANTIC-OCEAN SAMPLES [J].
BAYA, AM ;
BRAYTON, PR ;
BROWN, VL ;
GRIMES, DJ ;
RUSSEKCOHEN, E ;
COLWELL, RR .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1986, 51 (06) :1285-1292