Effects of Sulphur-containing Compounds on Lettuce Fruit Germination
The germination of Lactuca sativa L. cv. Arctic King fruit on a 0.5 per cent agar substrate was inhibited in light at temperatures above 31�C (� 1.0�). This precisely repeatable value, termed the upper temperature cut-off point, is characteristic for this lettuce variety. The position of this cut-of...
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Oxford University Press
1974
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fthighwire:oai:open-archive.highwire.org:jexbot:25/2/375 2023-05-15T15:03:08+02:00 Effects of Sulphur-containing Compounds on Lettuce Fruit Germination REYNOLDS, T. 1974-04-01 00:00:00.0 text/html http://jxb.oxfordjournals.org/cgi/content/short/25/2/375 https://doi.org/10.1093/jxb/25.2.375 en eng Oxford University Press http://jxb.oxfordjournals.org/cgi/content/short/25/2/375 http://dx.doi.org/10.1093/jxb/25.2.375 Copyright (C) 1974, Society for Experimental Biology Articles TEXT 1974 fthighwire https://doi.org/10.1093/jxb/25.2.375 2016-11-16T18:17:53Z The germination of Lactuca sativa L. cv. Arctic King fruit on a 0.5 per cent agar substrate was inhibited in light at temperatures above 31�C (� 1.0�). This precisely repeatable value, termed the upper temperature cut-off point, is characteristic for this lettuce variety. The position of this cut-off point is raised by the presence of thiourea (500–1000 mg/1) and a number of other thiol compounds. This effect is not shown by all thiol compounds and is dependent on the configuration of the rest of the molecule. The presence of a hydroxyl group in the test compound often results in the temperature cut-off point being lowered but again this effect depends on the configuration of the rest of the molecule. It is postulated that the stimulating effects of active thiol compounds are related to hydrophobic interactions with a macro-molecule involved in the initiation of germination. Text Arctic HighWire Press (Stanford University) Arctic Journal of Experimental Botany 25 2 375 389 |
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HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Articles |
spellingShingle |
Articles REYNOLDS, T. Effects of Sulphur-containing Compounds on Lettuce Fruit Germination |
topic_facet |
Articles |
description |
The germination of Lactuca sativa L. cv. Arctic King fruit on a 0.5 per cent agar substrate was inhibited in light at temperatures above 31�C (� 1.0�). This precisely repeatable value, termed the upper temperature cut-off point, is characteristic for this lettuce variety. The position of this cut-off point is raised by the presence of thiourea (500–1000 mg/1) and a number of other thiol compounds. This effect is not shown by all thiol compounds and is dependent on the configuration of the rest of the molecule. The presence of a hydroxyl group in the test compound often results in the temperature cut-off point being lowered but again this effect depends on the configuration of the rest of the molecule. It is postulated that the stimulating effects of active thiol compounds are related to hydrophobic interactions with a macro-molecule involved in the initiation of germination. |
format |
Text |
author |
REYNOLDS, T. |
author_facet |
REYNOLDS, T. |
author_sort |
REYNOLDS, T. |
title |
Effects of Sulphur-containing Compounds on Lettuce Fruit Germination |
title_short |
Effects of Sulphur-containing Compounds on Lettuce Fruit Germination |
title_full |
Effects of Sulphur-containing Compounds on Lettuce Fruit Germination |
title_fullStr |
Effects of Sulphur-containing Compounds on Lettuce Fruit Germination |
title_full_unstemmed |
Effects of Sulphur-containing Compounds on Lettuce Fruit Germination |
title_sort |
effects of sulphur-containing compounds on lettuce fruit germination |
publisher |
Oxford University Press |
publishDate |
1974 |
url |
http://jxb.oxfordjournals.org/cgi/content/short/25/2/375 https://doi.org/10.1093/jxb/25.2.375 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://jxb.oxfordjournals.org/cgi/content/short/25/2/375 http://dx.doi.org/10.1093/jxb/25.2.375 |
op_rights |
Copyright (C) 1974, Society for Experimental Biology |
op_doi |
https://doi.org/10.1093/jxb/25.2.375 |
container_title |
Journal of Experimental Botany |
container_volume |
25 |
container_issue |
2 |
container_start_page |
375 |
op_container_end_page |
389 |
_version_ |
1766335025532370944 |