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本帖最后由 细胞海洋 于 2010-1-14 17:51 编辑 9 G4 V8 C3 M" W2 z3 C7 j
+ e1 U0 `; y% PBiotechnology
9 v+ X0 v, I+ b$ F5 g1 CFifth edition4 g6 _" U4 ?5 Q" g$ j/ J8 V
Biotechnology is the major technology of the twenty-first century – yet few# L$ \0 `7 @4 ?9 p, M
people realise how much it impacts on many aspects of human society.& g0 E2 C# o4 I& p
The defining aim of this new fifth edition is to re-establish the correct
1 ~+ S$ A, V: z9 S3 R! z1 Kunderstanding of the term biotechnology. Using the straightforward style% J7 G8 j t: u0 X: F$ Y9 {8 O
that made the previous editions of his textbook so popular, John Smith; K. P1 r: J" R1 l/ |: N5 `
once again helps students and general readers alike with the deciphering4 d5 @: i$ e J) Y
and use of biological knowledge.He explains the historical developments in( Y3 b# ]+ f- h- u
biotechnology and the range of activities from brewing beer, the treatment) A: A+ e0 Z% |
of sewage and other wastes, and the creation of biofuels. He also discusses
7 l- D. P# ]+ {6 Q% ~the innovations in molecular biology, genomics and proteomics, systems
8 K5 w: x/ | d- J* y2 D9 {# zbiology and their impact on new biotechnology. In this edition John Smith
- h. ?: D% K# n" q: `0 d" Salso re-examines the ethics and morality of aspects of biotechnology and2 y2 K. Z3 Q ^ l0 h
puts new emphasis on stem cells and regenerative medicine and micro
5 x. A" i& ]7 y- q, j$ d; I% dRNA.! @9 E7 v) |& H6 d, U" Q* H
John E. Smith is Emeritus Professor of Applied Microbiology in the
5 D! N* T# `0 Z/ _Institute of Pharmacy and Biomedical Sciences, University of Strathclyde,
- ~- y0 Z; a7 l/ C7 f3 i5 GGlasgow and Scientific Advisor to GlycaNova, Norway.
+ a/ F3 b0 ~- {3 S x0 u X" {6 w, g# a5 m$ y/ T9 H) v% J
Preface4 b* \' h1 R( u3 b. O! V
A defining aim of this fifth edition of Biotechnology has been to re-establish* i8 E5 c& q/ |! M
the correct understanding of the true meaning of biotechnology.
( [& T/ d" m3 P8 t7 r8 E. _* YBiotechnology is in essence the deciphering and use of biological knowledge.( _5 B$ C+ K! O. U) p( b* U( N, m
It is highly multidisciplinary since it has its foundations in many* j: ~$ ]5 X- ^; G5 g Z
disciplines including biology, microbiology, biochemistry, molecular biology,& E" U3 ^5 I' N7 Q) {; N2 @* {
genetics, chemistry and chemical and process engineering. It may also
6 l' v& ^( a w$ Gbe viewed as a series of enabling technologies that involve the practical7 a) L/ |2 H# @, l* k" E+ Q
application of organisms (especially microorganisms) or their cellular components
/ z3 W+ X; j/ v3 ~% z. pto manufacturing and service industries and environmental management.
5 ^8 M5 P% i0 b! ?Historically, biotechnology was an artisanal skill rather than a
3 y9 H- a6 j5 Lscience, exemplified in themanufacture ofwines, beers, cheeses, etc.where: m* x: K# V. ^
the techniques of manufacture were well worked out and reproducible,
, I0 L+ `3 T) z8 d Xwhile the biological mechanisms were not understood. As the scientific
: R4 K& i% z5 |0 a% M. a2 p# `basis of these biotechnology processes has developed this has led to more
% `- s, q( }% p9 Kefficient manufacturing of the traditional processes that still represent the2 T5 `3 w) `0 X
major financial returns of biotechnology, i.e. bread, beers, wines, cheeses,
( i) X* t: _, }& H# oetc. Modern biotechnological processes have generated a wide range of new
0 ^% R2 Q! z' M. g7 l4 C7 Rand novel products including antibiotics, vaccines and monoclonal antibodies,. {$ W: P T. `+ b: t* [
the production of which has been optimised by improved fermentation
$ k$ M# r, W: `5 d# o6 J6 w spractices. Biotechnology has been further revolutionised by a range
; a9 D- X. M+ z0 _0 A+ d9 a, vof new molecular biology innovations, allowing unprecedented molecular
) ^& o: w1 Z' \4 g1 x7 ]- s# Tchanges to be made to living organisms. The increasing understanding of
- \/ ~+ R0 z* f" q, fgenomics and proteomics has led to the creation of a vast range of transgenic
: x. l# a' p5 }( pmicroorganisms, agricultural (genetically modified) crops and animals,- r9 h# h9 v* q
and major new recombinant protein drugs, and has revolutionised; r2 a* G: d& E X! s/ K! j" @% x
activities in the traditional food and drinks industries. In the environment,
. @- T; X; j) Nbiotechnology innovations are creating major advances in water
7 x( L4 I7 j& U6 r* rand land management and also remediating the pollution generated by
+ u3 R; @; w, R2 b# C5 p. Q% oover-industrialisation.
' j- [9 F% w: z6 [' M. a2 B; _There have been vast investments in molecular diagnostics, not only in
0 z' H9 X& Q, D# `- m* D! ~medicine but in plant and animal agriculture and the environment. Will9 R/ n/ m u$ K) [7 g, O) X6 Q
the huge potential of stem cells for remedial medicine soon be realised?1 r+ y5 B# c( L0 y" Y' ^
Until recently, much attention has been given to determining the ‘nuts
, O0 @$ U0 P- q2 J5 C# Y/ @and bolts’ of biological systems. Now, systems biology is aiming to describe
# ~1 g% F/ C/ C+ aand to understand the operation of complex biological systems and ultimately
# U9 m8 ^7 u( l! \5 L+ i+ ~4 ito develop predictive models of, for example, human disease and
* q% k9 s! v, h% }9 V( Ycomplex fermenter systems used in biotechnology.- Y# _+ o J Z- E4 @
Some of the new aspects of biotechnology, such as genetic engineering,9 p% d8 J8 P' l7 V" A
have aroused certain social sensitivities of an ethical, moral and political
: u( h/ _) m& p% S$ lcharacter. Regulatory authorities throughout the world are now examining
1 J4 `& d* W2 q" F+ _4 o( H: sthe implications of these new and revolutionary techniques. It is hoped that
- A5 _2 ]4 w' f/ Zcommon sense will prevail.
) z# U [7 h5 \3 dUndoubtedly, modern biotechnology can only maximise its full potential- T. {8 S, B! F. b* R# w& u3 p
to benefit mankind through achieving a basis of public understanding,
# N8 F' ^+ o+ q% h6 E" z9 `! I0 Hawareness, and knowledge of the technologies. Participating scientists must learn to communicate openly with the public and attempt to demystify the
. E( U" l( X: Y! lcomplex nature of living systems. By doing so they will generate a greater" }" a& ~% Z6 S% r+ I
level of confidence and trust between the scientific community and the
6 U) m2 f A( a l+ q$ t8 R1 rpublic at large.
% p+ H4 l: f2 H9 c( u& w2 y! eThis expanded fifth edition of Biotechnology is again aimed to give an0 S% w$ O$ u6 r
integrated overview of its complex, multifaceted and often ill-maligned
2 F" k( t1 L; f* Tsubjects, and for some young readers to point the way forward to exciting,
6 a" I$ X) [ x' E5 C Lsatisfying and rewarding careers. Biotechnology will undoubtedly be the- Y4 P- u! H2 v. m' O4 n
major technology of the twenty-first century and should be so recognised
0 c3 R; f- K/ q1 G2 Pby the lay public.
; j1 M# [9 F) @$ w) N8 KI amagain deeply indebted to the long-suffering Elizabeth Clements for. y4 b$ j+ e$ `; `: ^2 [5 a' O
her skilful processing of the manuscript and her continued dedication. |
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