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Ethylene upregulate...
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Swarup, Ranjan
(författare)
Ethylene upregulates auxin biosynthesis in Arabidopsis seedlings to enhance inhibition of root cell elongation.
- Artikel/kapitelEngelska2007
Förlag, utgivningsår, omfång ...
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2007-07-13
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Oxford University Press (OUP),2007
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Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:umu-18894
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-18894URI
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https://doi.org/10.1105/tpc.107.052100DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Ethylene represents an important regulatory signal for root development. Genetic studies in Arabidopsis thaliana have demonstrated that ethylene inhibition of root growth involves another hormone signal, auxin. This study investigated why auxin was required by ethylene to regulate root growth. We initially observed that ethylene positively controls auxin biosynthesis in the root apex. We subsequently demonstrated that ethylene-regulated root growth is dependent on (1) the transport of auxin from the root apex via the lateral root cap and (2) auxin responses occurring in multiple elongation zone tissues. Detailed growth studies revealed that the ability of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid to inhibit root cell elongation was significantly enhanced in the presence of auxin. We conclude that by upregulating auxin biosynthesis, ethylene facilitates its ability to inhibit root cell expansion.
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Perry, Paula
(författare)
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Hagenbeek, Dik
(författare)
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Van Der Straeten, Dominique
(författare)
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Beemster, Gerrit T S
(författare)
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Sandberg, GöranUmeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)(Swepub:umu)gosa0003
(författare)
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Bhalerao, Rishikesh
(författare)
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Ljung, Karin
(författare)
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Bennett, Malcolm J
(författare)
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Umeå universitetInstitutionen för fysiologisk botanik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:The Plant Cell: Oxford University Press (OUP)19:7, s. 2186-961040-46511532-298X
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