Abstract
That great difficulty is experienced in transplanting spontaneous animal tumors to other animals of the same species is well known. Yet, transplanted animal tumors once established may be transferred from animal to animal of the same species for many years with considerable ease. The transplants take approximately in all cases. Jensen claims that successful transplantations of spontaneous and artificially produced crown galls of the sugar beet may be made on the sugar beet without stimulating the host tissue itself to crown gall formation. The present report deals with the inoculation of young parts of tobacco, tomato, geranium, sugar beet, yellow and red mangels, rubber and castor bean plants with pieces of crown gall tissue arising on similar plants from inoculations, with virulent strains of Bacterium tumefaciens. Pieces of crown gall tissue of Ricinus communis, when transplanted into the same and other Ricinus plants, produce small crown galls in all cases. Transplants of the growths of the second generation to other plants were also found to be effective in producing crown gall tissue. These new growths, however, were generally much smaller than those produced by the primary inoculation with the bacterium or with the crown gall inoculum. Kicinus crown gall tissues transplanted to growing portions of the tobacco plant were also found to produce galls. Similar results were obtained with crown galls of tomato, geranium and the beet. These neoplasms, however, are not conclusively of the inoculum type, but are generally of the host type, for, while it is impossible to distinguish Ricinus crown gall on tobacco from tobacco crown gall, it is clear that these crown galls are strictly of tobacco type and origin. The crown gall tissue on the tobacco became differentiated and formed leafy shoots with characteristic tobacco leaves.
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Claims 7
Claim · model-written summary
Ricinus crown gall tissue produced small galls after transplantation to the same and other Ricinus plants in all cases.
- Taxon
- Ricinus communis
Ricinus communise0 - Treatment
- Pieces of crown gall tissuee0
- Outcome
- small crown gallse0
- Qualifier
- in all casese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pieces of crown gall tissue of Ricinus communis, when transplanted into the same and other Ricinus plants, produce small crown galls in all cases”
Claim · model-written summary
Second generation gall transplants produced crown gall tissue in other plants.
- Taxon
- Ricinus communisRicinus communise1
- Treatment
- Transplants of the growths of the second generatione0
- Outcome
- crown gall tissuee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transplants of the growths of the second generation to other plants were also found to be effective in producing crown gall tissue”
e1“Pieces of crown gall tissue of Ricinus communis”
Claim · model-written summary
Galls from second generation transplants were generally much smaller than those from primary bacterial or gall inoculation.
- Taxon
- Ricinus communisRicinus communise1
- Outcome
- new growthse0
- Direction
- much smallere0
- Qualifier
- generallye0
- Comparator
- primary inoculation with the bacterium or with the crown gall inoculume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These new growths, however, were generally much smaller than those produced by the primary inoculation with the bacterium or with the crown gall inoculum”
e1“Pieces of crown gall tissue of Ricinus communis”
Claim · model-written summary
Ricinus crown gall tissue produced galls on growing tobacco tissue.
- Taxon
- tobacco
Nicotiana tabacume0 - Organ / stage
- growing portionse0
- Treatment
- Kicinus crown gall tissues transplantede0
- Outcome
- gallse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kicinus crown gall tissues transplanted to growing portions of the tobacco plant were also found to produce galls”
Claim · model-written summary
Crown galls from tomato, geranium and beet gave similar transplant results.
- Taxon
- tomato, geranium and the beet
Geranium
Solanum lycopersicum
Beta vulgarise0 - Outcome
- Similar resultse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar results were obtained with crown galls of tomato, geranium and the beet”
Claim · model-written summary
The resulting neoplasms were generally of host type rather than inoculum type, although their identity was not conclusive.
Not reportedTaxon
Verbatim
e0“These neoplasms, however, are not conclusively of the inoculum type, but are generally of the host type”
Claim · model-written summary
Tobacco crown gall tissue differentiated and formed leafy shoots with characteristic tobacco leaves.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leafy shootse0
- Outcome
- formed leafy shoots with characteristic tobacco leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crown gall tissue on the tobacco became differentiated and formed leafy shoots with characteristic tobacco leaves”
The same questions in other papers
transplanting · pest · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.