Bacteria in Relation to Plant Diseases 2
Bacteria in Relation to Plant Diseases 2
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The organism is aerobic.
An attempt was made to grow the organism on dead roots. Pea seeds were germinated between layers of cotton wool till the radicles were an inch long, then dropped into sterile tubes containing wet plugs of cotton and steamed in a water bath for ten minutes. After cooling the roots were infected with nitragin and kept in the dark. In 10 days good growth was obtained, seemingly of the organism sought, but attempts to get pure cultures fsuled because of the presence of liqu...c^ng bacteria.
Tests were then made of the ability of nitragin to produce root-nodules. Inoculations were made according to directions, both by rubbing the seeds with the nitragin rubbed up in water and by pour- ing such water over the soil where the seeds were to be planted. Sterile water and utensils were used. No attempt to sterilize seeds before sowing was made and check experiments, she says, justified this, showing that the Leguminosae are not hereditarily infected with the nodule organism.
What to read after Bacteria in Relation to Plant Diseases 2?
You can find similar books in the "Read Also" column, or choose other free books by Smith, Erwin F. (Erwin Frink), 1854-1927 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The organism is aerobic.
An attempt was made to grow the organism on dead roots. Pea seeds were germinated between layers of cotton wool till the radicles were an inch long, then dropped into sterile tubes containing wet plugs of cotton and steamed in a water bath for ten minutes. After cooling the roots were infected with nitragin and kept in the dark. In 10 days good growth was obtained, seemingly of the organism sought, but attempts to get pure cultures fsuled because of the presence of liqu...c^ng bacteria.
Tests were then made of the ability of nitragin to produce root-nodules. Inoculations were made according to directions, both by rubbing the seeds with the nitragin rubbed up in water and by pour- ing such water over the soil where the seeds were to be planted. Sterile water and utensils were used. No attempt to sterilize seeds before sowing was made and check experiments, she says, justified this, showing that the Leguminosae are not hereditarily infected with the nodule organism.
What to read after Bacteria in Relation to Plant Diseases 2?
You can find similar books in the "Read Also" column, or choose other free books by Smith, Erwin F. (Erwin Frink), 1854-1927 to read onlineMoreLess
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