Peanut Mosaic

McClintock, J. A.

doi:10.1126/science.45.1150.47

Cited by 4 publications

(4 citation statements)

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“…The mosaic diseases of leguminous plants, on the other hand, seem to be quite generally transmitted through seed. This was found to occur in the case of the mosaic of pea bean by Reddick and Stewart (23) and for the mosaic of lima bean by McClintock (16). Gardner and Kendrick (8) have shown that mosaic is transmitted by soybean seed, and Dickson (5) has shown that it is transmitted by the seed of Trifolium pratense, T. hybridum, Melilotus alba, and Pisum sativum.…”

Section: Yellows Not Transmitted Through Aster Seedmentioning

confidence: 97%

“…During the exposure of the second set of plants the colony and insects numbers I, 2, 4,6,8, I I, 13, 14,20,24, and 30 transmitted the disease. During the exposure of the third set of plants the colony and all the insects except numbers), 3,9,IS,16,18,19,21,23,26,27, and 28 transmitted yellows. Insect number 26 died during the exposure of the third plant.…”

Section: Insect Exposure To Yellowed Aster Plantsmentioning

confidence: 99%

“…Insect number 10 failed to transmit yellows to the first 2 plants on which it was confined, but carried it to 12 of the 19 plants on which it fed during the remainder of its life. Insect number I I failed to take yellows to the first plant but transmitted it to all but one of the next 16 plants. The 2 plants on which it was confined shortly before its death remained healthy.…”

Section: Insect Exposure To Yellowed Aster Plantsmentioning

confidence: 99%

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Studies on Aster Yellows

Kunkel¹

1926

American J of Botany

113

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An infectious chlorosis known as " aster yellows," because it attacks the China aster, Callistephus chinensis Nees, is prevalent throughout the United States. The aster is grown extensively in other parts of the world, especially in Europe and the Orient, but the disease is known to be prevalent only in North America. Although it has been present here for many years and is a serious hindrance to aster growing, it has been given little attention by plant pathologists. This is partly, no doubt, because it belongs to that group of obscure plant maladies known as virus diseases. Another probable reason why pathologists have neglected aster yellows is that it is not known to attack any plant of great economic importance. Smith (26) gave a good description of the disease in 1902 and suggested that it might go to other plants in the Compositae closely related to the China aster. He was unable to find any parasitic organism associated with yellows and suspected its relationship to the virus disease group. Whether the incidence of aster yellows has changed during the past twenty-five years is not known. Smith speaks of it as "widespread and destructive." At the present time it is so serious in many sections of the country that the planting of asters is being greatly restricted or even abandoned. Aster plots showing 90 to 95 percent of yellowed plants are not uncommon throughout the eastern United States. One hundred percent infection has occasionally been observed in fields containing several hundred plants. In certain localities, however, the disease is not yet serious, and small plantings sometimes remain disease-free to the end of the season.At the suggestion of Doctor William Crocker, the writer undertook a study of aster yellows in the spring of 1923. The work, started at that time, has been continued during the past three years. Special attention was given to the means by which the disease is transmitted to healthy plants, to its relationship to similar well known diseases of other plants, to its overwintering in wild host plants, to the life and habits of its insect carrier, to its incubation period in both plant and insect host, to its host range, to possible methods for its control, and to its etiology. Several brief reports covering certain phases of the work have already been published (12,14, IS). The object of the present paper is to record in more detail observa-

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Section: Yellows Not Transmitted Through Aster Seedmentioning

confidence: 97%

Section: Insect Exposure To Yellowed Aster Plantsmentioning

confidence: 99%

Section: Insect Exposure To Yellowed Aster Plantsmentioning

confidence: 99%

See 1 more Smart Citation

Studies on Aster Yellows

Kunkel¹

1926

American J of Botany

113

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“…ZiMMERMANN (1907) was the first to report a rosette disease of groundnut and suggested it to be of virus nature. MCCLINTOCK (1917) reported a mosaic disease of groundnut but failed to prove its transmissibility. Several typse of diseases of groundnut have been described from Africa under the name of "rosette".…”

Section: Introductionmentioning

confidence: 99%