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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw047
|2 doi
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|a pubmed24n1346.xml
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|a (DE-627)NLM257591338
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|a (NLM)26889005
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|c DE-627
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|a eng
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|a Foo, Eloise
|e verfasserin
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|a Interactions between ethylene, gibberellins, and brassinosteroids in the development of rhizobial and mycorrhizal symbioses of pea
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|c 2016
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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 13.12.2016
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|a Date Revised 25.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a The regulation of arbuscular mycorrhizal development and nodulation involves complex interactions between the plant and its microbial symbionts. In this study, we use the recently identified ethylene-insensitive ein2 mutant in pea (Pisum sativum L.) to explore the role of ethylene in the development of these symbioses. We show that ethylene acts as a strong negative regulator of nodulation, confirming reports in other legumes. Minor changes in gibberellin1 and indole-3-acetic acid levels in ein2 roots appear insufficient to explain the differences in nodulation. Double mutants produced by crosses between ein2 and the severely gibberellin-deficient na and brassinosteroid-deficient lk mutants showed increased nodule numbers and reduced nodule spacing compared with the na and lk single mutants, but nodule numbers and spacing were typical of ein2 plants, suggesting that the reduced number of nodules innaandlkplants is largely due to the elevated ethylene levels previously reported in these mutants. We show that ethylene can also negatively regulate mycorrhizae development when ethylene levels are elevated above basal levels, consistent with a role for ethylene in reducing symbiotic development under stressful conditions. In contrast to the hormone interactions in nodulation, ein2 does not override the effect of lk or na on the development of arbuscular mycorrhizae, suggesting that brassinosteroids and gibberellins influence this process largely independently of ethylene
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arbuscular mycorrhizae
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|a brassinosteroids
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|a ein2
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|a ethylene insensitivity
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|a gibberellins
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|a hormone mutants
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|a nodulation
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|a peas
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|a root growth.
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|a Brassinosteroids
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|a Ethylenes
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|a Gibberellins
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|a Indoleacetic Acids
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|a Organophosphorus Compounds
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|a Phthalimides
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|a Plant Growth Regulators
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|a Plant Proteins
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|a alpha-naphthylphthalamic acid
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|a 306R88V86P
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|a indoleacetic acid
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|a 6U1S09C61L
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|a ethylene
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|a 91GW059KN7
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|a ethephon
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|a XU5R5VQ87S
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|a McAdam, Erin L
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|a Weller, James L
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|a Reid, James B
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 8 vom: 18. Apr., Seite 2413-24
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:67
|g year:2016
|g number:8
|g day:18
|g month:04
|g pages:2413-24
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|u http://dx.doi.org/10.1093/jxb/erw047
|3 Volltext
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|h 2413-24
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