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NLM163538107 |
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DE-627 |
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20231223100547.0 |
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231223s2006 xx ||||| 00| ||eng c |
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|a pubmed24n0545.xml
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|a (DE-627)NLM163538107
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|a (NLM)16777531
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Sampietro, Diego Alejandro
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Plant growth inhibitors isolated from sugarcane (Saccharum officinarum) straw
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| 264 |
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1 |
|c 2006
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 30.08.2006
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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 Several compounds related with plant defense and pharmacological activities have been isolated from sugarcane. Straw phytotoxins and their possible mechanisms of growth inhibition are largely unknown. A bioassay-guided fractionation of the phytotoxic constituents leachated from a sugarcane straw led to the isolation of trans-ferulic (trans-FA), cis-ferulic (cis-FA), vanillic (VA) and syringic (SA) acids. The straw leachates and their identified constituents significantly inhibited root growth of lettuce and four weeds. VA was more phytotoxic to root elongation than FA and SA. The identified phenolic compounds significantly increased leakage of root cell constituents, inhibited dehydrogenase activity and reduced chlorophyll content in lettuce. VA and FA inhibited mitotic index while SA increased cell division. Additive (VA-FA and FA-SA) and synergistic (VA-SA) interactions on root growth were observed at the response level of EC(25). Although the isolated compounds differed in their relative phytotoxic activities, the observed physiological responses suggest that they have a common mode of action. HPLC analysis indicated that sugarcane straw can potentially release 1.43 (ratio 2:1, trans:cis), 1.14 and 0.14mmolkg(-1) (straw dry weight) of FA, VA and SA, respectively. As phenolic acids are often found spatially concentrated in the top soil layers under plant straws, further studies are needed to establish the impact of these compounds in natural settings
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Acids, Carbocyclic
|2 NLM
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| 650 |
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7 |
|a Coumaric Acids
|2 NLM
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| 650 |
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7 |
|a Plant Growth Regulators
|2 NLM
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| 650 |
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7 |
|a Gallic Acid
|2 NLM
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| 650 |
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7 |
|a 632XD903SP
|2 NLM
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| 650 |
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7 |
|a ferulic acid
|2 NLM
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| 650 |
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7 |
|a AVM951ZWST
|2 NLM
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| 650 |
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7 |
|a syringic acid
|2 NLM
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| 650 |
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7 |
|a E390O181H5
|2 NLM
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| 650 |
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7 |
|a Vanillic Acid
|2 NLM
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| 650 |
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7 |
|a GM8Q3JM2Y8
|2 NLM
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| 700 |
1 |
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|a Vattuone, Marta Amelia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Isla, María Ines
|e verfasserin
|4 aut
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| 773 |
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8 |
|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 163(2006), 8 vom: 30. Juli, Seite 837-46
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
8 |
|g volume:163
|g year:2006
|g number:8
|g day:30
|g month:07
|g pages:837-46
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|a AR
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| 952 |
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|d 163
|j 2006
|e 8
|b 30
|c 07
|h 837-46
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