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<p>plant growth, through <a href="page.php?w=fixing_nitrogen">fixing nitrogen</a>, producing growth hormones, or even suppressing pathogens. A variety of PGPR genera provide a wide array of functions that directly improve plant health. Bacteria genera <a href="page.php?w=Rhizobium">Rhizobium</a> and <a href="page.php?w=Mesorhizobium">Mesorhizobium</a> work to fix nitrogen into a usable form. <a href="page.php?w=Actinomyces">Actinomyces</a> and <a href="page.php?w=Azospirillum">Azospirillum</a> produce growth hormones that increase root growth and</p><p>
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