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Il V "."'l J Ji ' ' 1 il
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Interrelationships between microorganisms and plants in soil
VLASTIMIL VANCURA, FRANTISEK KUNC EDITORS
These proceedings document our present knowledge of the interrelations between microorganisms and plants in the rhizosphere. Over sixty contributions by microbiologists specialized in this area examine the function of microorganisms in the root system of crop plants and in its immediate vicinity.
One of the most exciting recent advances is that the determination of certain properties of rhizobia has made it possible to predict the efficiency of a strain without the need for vegetation experiments. Using genetic engineering methods, it has been possible to develop new efficient rhizobial strains. Remarkablë results have been achieved by the novel application of exomycorrhiza in the...
Tovább
Fülszöveg
II',',1 '1«
; '
I' , , ' r i: -
Í ¦ I '
i . ' ' fy'-O-:;.
I Vil,1,1',.I
I Í i I M ¦
- 'li !Wí.
il i;'
e'i 'î'i'i
Il V "."'l J Ji ' ' 1 il
' ' I I " .
¦ I, :; I; III i', .ii;
Interrelationships between microorganisms and plants in soil
VLASTIMIL VANCURA, FRANTISEK KUNC EDITORS
These proceedings document our present knowledge of the interrelations between microorganisms and plants in the rhizosphere. Over sixty contributions by microbiologists specialized in this area examine the function of microorganisms in the root system of crop plants and in its immediate vicinity.
One of the most exciting recent advances is that the determination of certain properties of rhizobia has made it possible to predict the efficiency of a strain without the need for vegetation experiments. Using genetic engineering methods, it has been possible to develop new efficient rhizobial strains. Remarkablë results have been achieved by the novel application of exomycorrhiza in the inoculation of forest tree seedlings planted in poor soils or spoil banks in coal mining areas. There is now more information available on the intracellular interactions with the host plant in vesicular-arbuscular endomycorrhiza, the introduction of mycor-rhiza to the rhizosphere and its effect on biochemical processes, nutrition, health and yields of plants.
Many of the papers on associative microorganisms of the root system dealt with molecular nitrogen-fixing microorganisms and their potential importance to plant nutrition. Other rhizoplane microorganisms, in particular fluorescent pseudomonads, were examined with a view to determining their ability to absorb nutrients and proliferate when introduced into the rhizosphere, in order to produce biologically active substances which would improve the nutrition and health of plants and stimulate their growth and yield by changing the composition of the microbial community.
Other papers examined the prospects of suppressing phytopathogenic soil microorganisms and phytotoxic microorganisms by
biological media. In addition, the reader will find informalion on the production of commercial preparations for improving plant nutrition and health used in the USSR, GDR, Hungary and Czechoslovakia.
All these lines of research are intimately associated vj\ih the problems of soil fertility and crop yields, which in turn have a direct bearing on the nutrition of mankid and the protection of man's environment.
ACADEMIA »PRAHA
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