Induction of Polyploidy in Nicotiana

Greenleaf, Walter H.

doi:10.1126/science.86.2242.565

Cited by 22 publications

(7 citation statements)

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“…in diameter and 3 mm. in length, is near 32; while for the experiments reported in figures 7,8,9, and 12, the maximum number is near 46. This is attributable to the fact that horseradish roots from different sources were used for these two different groups of experiments.…”

Section: Methodsmentioning

confidence: 80%

Factors Affecting Regeneration of the Horseradish Root

Lindner

1940

Plant Physiol.

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Section: Methodsmentioning

confidence: 80%

Factors Affecting Regeneration of the Horseradish Root

Lindner

1940

Plant Physiol.

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“…On the other hand, nuclear DNA content has been positively correlated with the size of cells (Greenleaf 1938), the size of tissues (Stebbins 1950), and the size of organs (Avery 1959). List (1963) found that the cell volume of developing, endopolyploid metaxylem from several plant species was related to nuclear volume and that increases in the size of both cells and nuclei appeared to be stepwise, as was the increase in DNA content, which, in some cases, reached 64 C. Caspesius and Bopp (1970) and Caspesius et al (1972), using an inhibitor of DNA synthesis, found that cell elongation in the hypocotyl of Sinapis alba (Brassica nigra) required and was dependent upon preceding DNA replication.…”

Section: Discussionmentioning

confidence: 99%

DNA content of Phaseolus coccineus x P. vulgaris suspensors

Pomper

Hoover

Ascher

1992

Sexual Plant Reprod

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At the globular stage of embryo development, the level of DNA, as determined from microspectrophotometric analysis of Feulgen-stained squashes, was significantly higher in the interspecific hybrid suspensor than in suspensors from self-pollination of Phaseolus coccineus, the maternal parent. However, at the earlyheart and early-cotyledonary stages of development, DNA content of interspecific hybrid suspensors was significantly lower than that of suspensors formed after self-pollination of either P. coccineus or P. vulgaris. The relationship between DNA content and suspensor cell length for P. coccineus and P. vulgaris at all developmental stages and between DNA content and cell area for P. coccineus at the early-cotyledonary stage was altered in hybrid suspensor cells. Nuclei in large cells of interspecific suspensors exhibited uneven distribution of polytene chromosomes and no clear nuclear outline.

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“…Lindstrom and Koos (1931) produced tomato diploid plants from haploids and tetraploids from auto diploids with 30% frequency by a similar method. Greenleaf (1938) treated decapitated Nicotiana plants with lanolin paste of 1 % IAA and resulted in doubling.…”

Section: Chromosome Doublingmentioning

confidence: 99%