According to recent research from the Max Planck Institute, plants may choose to grant certain species of bacteria access to the roots, which gives the plants a number of advantages.
The world's most diverse microbial ecosystem is soil. Plants select specific species from this incredible diversity, grant them access to the root, and host a distinct, carefully selected bacterial community from which they derive numerous benefits. In order to accomplish this, the plant's immune system must be able to distinguish between friendly and hostile bacteria.
The model plant Arabidopsis preferentially absorbs three bacterial phyla into its roots, according to researchers from the Max Planck Institute for Marine Microbiology in Bremen and the Max Planck Institute for Plant Breeding Research in Cologne. B-A C T-E R O-I D-E T-E S, A C T-I N O bacteria, and P R O T-E O bacteria The genotype of the plant and the type of soil both influence this microbe community.
With their investigation, the scientists have established new ground in plant science. The significance of microbial communities has only gained more attention in recent years. Any living thing can be considered a meta organism because it contains more microorganisms than cells, even humans.
S C H U L Z-E L-E F-E R T and his partners have directed a statistical analysis of the Arabidopsis root and distinguished changing amounts of 43 bacterial phyla. Therefore, it is possible to draw the conclusion that Arabidopsis selects the microorganisms that live in the soil for its roots.
S C H U L Z-E L-E F-E R T and his colleagues looked into three habitats when compiling the census: the rhizosphere, which is next to the root and contains the bacteria; the root tissue; and the soil surrounding the test plants. According to S C H U L Z-E L-E F-E R T, "three phyla of bacteria are predominant in the roots."
P R O T-E O bacteria, B-A C T-E R O-I D-E T-E S, and A C T-I N O bacteria are these phyla, with a major class or family for each one. Evidently, the particular Arabidopsis plant's genotype and the type of soil also have an effect on which bacteria are absorbed by the roots.
The test plants were grown by the researchers either in sandy soil from the river and lake landscape around G O L M in the federal state of Brandenburg or in loamy, silty soil from the Cologne Lowland. In addition, they looked at two distinct ecotypes of Arabidopsis, each of which was adapted to a very specific location.
The fact that the microbial communities of the two ecotypes differ also suggests that the bacteria must be concentrated specifically in the roots. According to S C H U L Z-E L-E F-E R T, "one of the bacterial species occurs ten times more frequently in one of the ecotypes than in the other"
As a result, the researchers looked into the bacteria's pattern of distribution, determining which species can only be found on dead organic material, which species are mostly found in roots, and which species can be found both on dead material and in roots.
The plant's immune system exerts its full force after pathogenic invaders are quickly identified by their distinctive patterns. The hypothesis being pursued by S C H U L Z-E L-E F -E R T K O L N based group is that these bacteria are primarily attracted to particular components of the plant cell wall, which are identical in living and dead material
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