Studies on Abscission: The Stimulating Role of Nearbyleaves

Rossetter, F. N.; Jacobs, William P.

doi:10.1002/j.1537-2197.1953.tb06479.x

Cited by 21 publications

(8 citation statements)

References 8 publications

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“…There was no significant difference between treatments in the rate of abscission at positions 1, 2, 6 or 7. Rossetter & Jacobs (79) fol lowed this confirmation of their hypothesis by removing all the leaf-blades below the apical bud (four-sided deblading) and comparing the results with the other two treatments (Fig. 6).…”

Section: Internal Factors That Speed Abscissionsupporting

confidence: 68%

“…The earlier workers cited above used a spiral pattern. If each leaf is an in dependent physiological entity so far as abscission is concerned, the average (34,79). There was no significant difference between treatments in the rate of abscission at positions 1, 2, 6 or 7.…”

Section: Internal Factors That Speed Abscissionmentioning

confidence: 93%

“…In controlling the longevity of any given petiole, only the auxin from its own blade seemed important, and yet consideration of the known multiplicity of correlation effects which exist between different organs and parts of the organism, suggested that there might be similar correlation effects for abscission. Accordingly, experiments were designed to try to uncover such effects, if they existed (32,34,79) . Quantitative methods were used, as in Wetmore & Jacobs (99).…”

Section: Internal Factors That Speed Abscissionmentioning

confidence: 99%

“…The next sizeable change in the interpretation of abscission in Coleus came from the research of Jacobs & co-workers (32,34,40,41,79,99 ) . Their specific intent was to find quantitative evidence as to what the normal, inter nal limiting factor is for leaf-longevity.…”

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confidence: 97%

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Longevity of Plant Organs: Internal Factors Controlling Abscission

Jacobs¹

1962

Annu. Rev. Plant. Physiol.

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The research of many men during the last twenty years has gone toward elucidating the internal factors which control the longevity of two importan t types of plant organs-leaves and fruits. This work, which one would expect to have general interest for developmental biologists, has not been as familiar to them as it might be because most of the papers which could be considered to treat longevity have emphasized the "abscission" side of the research. The emphasis on abscission is quite understandable: there are important economic aspects of leaf abscission and of fruit abscission (e.g., inducing leaf abscission in cotton plants for the mechanical picker, and preventing fruit abscission in some of the tree crops like apples and figs) . Consequently, many of the papers have been published in agricultural research journals , where the practical aspects of the research were emphasized.This review will consider the gradual development of our current under standing as to the internal factors in the plant which control the longevity of leaves and fruits. The extensive literature on external agents which will a rtific ally induce abscission will not be discussed, since it has recently been authoritatively reviewed by Addicott & Lynch (2), and since it is not par ticularly informative concerning the internal controlling factors, despite its value in field practice. Special emphasis will be placed on relating a given piece of research to previous research, both because of general scientific obligation, and because abscission researchers have been unusually lax in doing so. In particular, the early German authors (44,45,46,67) have, in the reviewer's opinion, not been given adequate credit by English-speaking authors. [No "holier-than-thou" attitude is suggested: the author has erroneously attributed to Myers credit that should have gone to Laibach and Mai (99), and undoubtedly will have overlooked some proper references in this review. But the aim and the obligation is to be as fair as human failings allow.]Among the papers published since the last review that are not herein considered in detail are those of Hall et at. (26,27,51,52, 53) and Haccius & Nies (23,24,25). Also omitted is consideration of the effects of position with respect to gravity, fully treated by Terpstra (86) and Vendrig (93, 94) . Of papers published before the last review, DostaJ's 1951 paper on correlative effects on leaf abscission in woody plants should be noted (14) . There are no 1 The survey of literature pertaining to this review was concluded in July 1961. 2 The following abbreviations are used: IAA (indole-3-acetic acid); NAA (1-naphthaleneacetic acid).

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Section: Internal Factors That Speed Abscissionsupporting

confidence: 68%

Section: Internal Factors That Speed Abscissionmentioning

confidence: 93%

Section: Internal Factors That Speed Abscissionmentioning

confidence: 99%

mentioning

confidence: 97%

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Longevity of Plant Organs: Internal Factors Controlling Abscission

Jacobs¹

1962

Annu. Rev. Plant. Physiol.

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“…ROSETTER and JACOBS (1953) and JACOBS (1955) found that, in addition to the tip, full-grown leaves above and below the debladed leaves can accelerate the fall of their petioles. This could be confirmed.…”

mentioning

confidence: 99%