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QUANTITATIVE LAWS IN REGENERATION. I
1. Equal masses of sister leaves of Bryophyllum calycinum produce equal masses of shoots and roots in equal time and under equal conditions. 2. The mass of shoots and roots produced by different masses of sister leaves in equal time and under equal conditions is approximately in direct proportion to...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1920
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140362/ https://www.ncbi.nlm.nih.gov/pubmed/19871810 |
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author | Loeb, Jacques |
author_facet | Loeb, Jacques |
author_sort | Loeb, Jacques |
collection | PubMed |
description | 1. Equal masses of sister leaves of Bryophyllum calycinum produce equal masses of shoots and roots in equal time and under equal conditions. 2. The mass of shoots and roots produced by different masses of sister leaves in equal time and under equal conditions is approximately in direct proportion to the masses of the leaves. 3. When a piece of stem inhibits the production of shoots and roots in a leaf of Bryophyllum connected with it, the stem gains in mass and this gain in mass equals approximately the mass of shoots and roots the leaf would have produced if it had been detached from the stem. 4. This suggests that the inhibitory influence of the stem upon the formation of shoots and roots in the leaf is due to the fact that the material available for this process naturally flows into the stem. |
format | Text |
id | pubmed-2140362 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1920 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21403622008-04-23 QUANTITATIVE LAWS IN REGENERATION. I Loeb, Jacques J Gen Physiol Article 1. Equal masses of sister leaves of Bryophyllum calycinum produce equal masses of shoots and roots in equal time and under equal conditions. 2. The mass of shoots and roots produced by different masses of sister leaves in equal time and under equal conditions is approximately in direct proportion to the masses of the leaves. 3. When a piece of stem inhibits the production of shoots and roots in a leaf of Bryophyllum connected with it, the stem gains in mass and this gain in mass equals approximately the mass of shoots and roots the leaf would have produced if it had been detached from the stem. 4. This suggests that the inhibitory influence of the stem upon the formation of shoots and roots in the leaf is due to the fact that the material available for this process naturally flows into the stem. The Rockefeller University Press 1920-01-20 /pmc/articles/PMC2140362/ /pubmed/19871810 Text en Copyright © Copyright, 1920, by The Rockefeller Institute for Medical Research This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Loeb, Jacques QUANTITATIVE LAWS IN REGENERATION. I |
title | QUANTITATIVE LAWS IN REGENERATION. I |
title_full | QUANTITATIVE LAWS IN REGENERATION. I |
title_fullStr | QUANTITATIVE LAWS IN REGENERATION. I |
title_full_unstemmed | QUANTITATIVE LAWS IN REGENERATION. I |
title_short | QUANTITATIVE LAWS IN REGENERATION. I |
title_sort | quantitative laws in regeneration. i |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140362/ https://www.ncbi.nlm.nih.gov/pubmed/19871810 |
work_keys_str_mv | AT loebjacques quantitativelawsinregenerationi |