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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2012.01.009
|2 doi
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|a pubmed24n0719.xml
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|a (NLM)22364828
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|a DE-627
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|e rakwb
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|a eng
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|a Kato-Noguchi, Hisashi
|e verfasserin
|4 aut
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|a Identification of two phytotoxins, blumenol A and grasshopper ketone, in the allelopathic Japanese rice variety Awaakamai
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 22.07.2014
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2012 Elsevier GmbH. All rights reserved.
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|a Aqueous methanol extracts of the traditional rice (Oryza sativa) variety Awaakamai, which is known to have the greatest allelopathic activity among Japanese traditional rice varieties, inhibited the growth of roots and shoots of cress (Lepidium sativum), lettuce (Lactuca sativa), timothy (Phleum pratense), Digitaria sanguinalis, Lolium multiflorum and Echinochloa crus-galli. Increasing the extract concentration increased the inhibition, suggesting that the extract of Awaakamai contains growth inhibitory substances. The extract of Awaakamai was purified and two main growth inhibitory substances were isolated and determined by spectral data as blumenol A and grasshopper ketone. Blumenol A and grasshopper ketone, respectively, inhibited the growth of cress shoots and roots at concentrations greater than 10 and 30 μmol/L. The concentrations required for 50% growth inhibition on cress roots and shoots were 84 and 27 μmol/L, respectively, for blumenol A, and 185 and 76 μmol/L, respectively, for grasshopper ketone. These results suggest that blumenol A and grasshopper ketone may contribute to the growth inhibitory effect of Awaakamai and may play an important role in the allelopathy of Awaakamai
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|a Journal Article
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|a Alkadienes
|2 NLM
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|a Cyclohexanols
|2 NLM
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|a Cyclohexanones
|2 NLM
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|a Ketones
|2 NLM
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|a Plant Extracts
|2 NLM
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|a Plant Growth Regulators
|2 NLM
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|a blumenol A
|2 NLM
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|a grasshopper ketone
|2 NLM
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|a Tamura, Kazuya
|e verfasserin
|4 aut
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|a Sasaki, Hiroaki
|e verfasserin
|4 aut
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|a Suenaga, Kiyotake
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 169(2012), 7 vom: 01. Mai, Seite 682-5
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:169
|g year:2012
|g number:7
|g day:01
|g month:05
|g pages:682-5
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|u http://dx.doi.org/10.1016/j.jplph.2012.01.009
|3 Volltext
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