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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2009.03009.x
|2 doi
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|a pubmed24n0638.xml
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|a (NLM)19754635
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Christophersen, H M
|e verfasserin
|4 aut
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| 245 |
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|a Arbuscular mycorrhizal colonization reduces arsenate uptake in barley via downregulation of transporters in the direct epidermal phosphate uptake pathway
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 27.05.2010
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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 *Here, we used barley (Hordeum vulgare) grown in normal and compartmented pots to investigate sensitivity to arsenic (As) in the absence of a positive growth response to arbuscular mycorrhizas (AM). *We tested the hypothesis that upon inoculation with AM fungi downregulation of HvPht1;1 and HvPht1;2 genes (encoding high-affinity inorganic orthophosphate (P(i))-uptake systems in a direct pathway via root epidermis and root hairs) and upregulation of the AM-induced HvPht1;8 (encoding the P(i)-uptake system responsible for transfer of P(i) from the symbiotic interface to cortical cells) play a role in decreased As uptake and hence reduced As sensitivity in AM plants. *Barley did not respond, or responded negatively to colonization by Glomus intraradices in terms of growth. In terms of specific phosphorus (P) uptake (P uptake per g of root) barley was nonresponsive. There was a significant interaction between As treatment and colonization, resulting in a lower As concentration and uptake in AM compared with nonmycorrhizal (NM) plants. *The decreased uptake of As and higher P : As molar ratios in the AM barley can be explained by the operation of the AM pathway as indicated by induction of HvPht1;8 and by down-regulation of HvPht1;1 and HvPht1;2
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arsenates
|2 NLM
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|a Membrane Transport Proteins
|2 NLM
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|a Phosphates
|2 NLM
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|a Phosphorus
|2 NLM
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| 650 |
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|a 27YLU75U4W
|2 NLM
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| 650 |
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|a Arsenic
|2 NLM
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| 650 |
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|a N712M78A8G
|2 NLM
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| 650 |
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|a arsenic acid
|2 NLM
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| 650 |
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|a N7CIZ75ZPN
|2 NLM
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| 700 |
1 |
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|a Smith, F A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Smith, S E
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 184(2009), 4 vom: 11. Dez., Seite 962-74
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:184
|g year:2009
|g number:4
|g day:11
|g month:12
|g pages:962-74
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|u http://dx.doi.org/10.1111/j.1469-8137.2009.03009.x
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