Soil Microbiological Recycling and the Virome Role in a Hectare Grassland
31
2 Microbial and Virus Activities in Terrestrial Ecosystems
A powerful metagenomics analytic helps detecting the soil virome diversity in terrestrial habitats [148, 176, 181, 247]. Virus inserts are key players in the global biogeochemical cycles, define distinct physico-chemical properties of the pro-, eukaryotes
species and largely determine the terrestrial microbiome, but our virus concerned
knowledge is still a dark matter. With the metagenomics analytic new detected
prokaryotic, eukaryotic sequences meanwhile comprise worldwide more than 6.3
million prokaryotic, eukaryotic data bank entries, actually 92 bacteria, 26 archaea,
and 5 eukaryotic super groups, all carrying virus inserts [104, 111]. Metagenomics
analytic based family trees of all types of organisms can be built, but the sequences of
about 16S rRNA sequences of 100 bacteria phyla deposited in the reference databases
do not share homology rRNA gene sequences. Through the lack of the metagenomics analytic in physiology explanatory power the physiological input of virus
inserts carrying individuals of a microbiome remains hidden. Thus the little understood characteristic multitudes and activity theatres of a large uncultivable number of
bacterial, archaeal, protozoal, fungal taxa on skins, mucous membranes, in intestinal
tracts, in soils exhibit strong doubts Martiny’s statement concerned that across major
biomes high proportions of bacteria are culturable [5, 222].
From interpretable, pathogens research related data sets, obtained by combined
florescence-in-situ-hybridisation (FISH) and omics-technology, we know that the
genome of the anaerobic ammonium oxidizer Kuenenia stuttgartiensis consists out
of 4,218,325 base pairs and that nitrifying, comammox bacteria and archaea can
grow with cyanate and transfer ammonium derived e
− on acceptors as NO 3
− and
NO 2
− by reducing them to N 2 or even to NH 3 [58, 103, 127, 226]. New insights
into the complexity of the cell metabolism and into the spatial abundance of certain
bacteria, archaea, protozoa, and fungi and their interrelationships unveil that around
100,000 unforeseen new antibiotica and enzymes producing bacteria species can be
expected among the 10
9 microbial cells in a gram soil [56, 82].
Searching with help of data banks, which store all known RNA molecules present
in a cell and all proteins present in cell proteomes, and have the bioinformatics tools
for homologies in transcriptomes, and starting at a certain fix point of sequenced
ribosomal 16S-RNA of whole genomes (metagenome) then about microbial functions can be speculated, although in data banks are presently more unknown than
known proteins deposited and a different amino acid composition of 2% or even one
amino acid difference already can mean a complete different protein functioning [18,
36]. Thus, 16S-RNA sequences derived speculations about microbial functions must
be handled with care, albeit we are nowadays able to visualize and identify in FISH
treated and with stable isotopes spiked soil samples with modern imaging technologies as Raman spectroscopy and NanSIMS (nano-secondary ion mass spectroscopy),
characteristic isotope peak changes within a few seconds and can conclude how a
cell could chemically be assembled [242, 269].
31
2 Microbial and Virus Activities in Terrestrial Ecosystems
A powerful metagenomics analytic helps detecting the soil virome diversity in terrestrial habitats [148, 176, 181, 247]. Virus inserts are key players in the global biogeochemical cycles, define distinct physico-chemical properties of the pro-, eukaryotes
species and largely determine the terrestrial microbiome, but our virus concerned
knowledge is still a dark matter. With the metagenomics analytic new detected
prokaryotic, eukaryotic sequences meanwhile comprise worldwide more than 6.3
million prokaryotic, eukaryotic data bank entries, actually 92 bacteria, 26 archaea,
and 5 eukaryotic super groups, all carrying virus inserts [104, 111]. Metagenomics
analytic based family trees of all types of organisms can be built, but the sequences of
about 16S rRNA sequences of 100 bacteria phyla deposited in the reference databases
do not share homology rRNA gene sequences. Through the lack of the metagenomics analytic in physiology explanatory power the physiological input of virus
inserts carrying individuals of a microbiome remains hidden. Thus the little understood characteristic multitudes and activity theatres of a large uncultivable number of
bacterial, archaeal, protozoal, fungal taxa on skins, mucous membranes, in intestinal
tracts, in soils exhibit strong doubts Martiny’s statement concerned that across major
biomes high proportions of bacteria are culturable [5, 222].
From interpretable, pathogens research related data sets, obtained by combined
florescence-in-situ-hybridisation (FISH) and omics-technology, we know that the
genome of the anaerobic ammonium oxidizer Kuenenia stuttgartiensis consists out
of 4,218,325 base pairs and that nitrifying, comammox bacteria and archaea can
grow with cyanate and transfer ammonium derived e
− on acceptors as NO 3
− and
NO 2
− by reducing them to N 2 or even to NH 3 [58, 103, 127, 226]. New insights
into the complexity of the cell metabolism and into the spatial abundance of certain
bacteria, archaea, protozoa, and fungi and their interrelationships unveil that around
100,000 unforeseen new antibiotica and enzymes producing bacteria species can be
expected among the 10
9 microbial cells in a gram soil [56, 82].
Searching with help of data banks, which store all known RNA molecules present
in a cell and all proteins present in cell proteomes, and have the bioinformatics tools
for homologies in transcriptomes, and starting at a certain fix point of sequenced
ribosomal 16S-RNA of whole genomes (metagenome) then about microbial functions can be speculated, although in data banks are presently more unknown than
known proteins deposited and a different amino acid composition of 2% or even one
amino acid difference already can mean a complete different protein functioning [18,
36]. Thus, 16S-RNA sequences derived speculations about microbial functions must
be handled with care, albeit we are nowadays able to visualize and identify in FISH
treated and with stable isotopes spiked soil samples with modern imaging technologies as Raman spectroscopy and NanSIMS (nano-secondary ion mass spectroscopy),
characteristic isotope peak changes within a few seconds and can conclude how a
cell could chemically be assembled [242, 269].