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Titolo:
Fruit development is actively restricted in the absence of fertilization in Arabidopsis
Autore:
Vivian-Smith, A; Luo, M; Chaudhury, A; Koltunow, A;
Indirizzi:
Commonwealth Sci Ind Res Org, Hort Res Unit, Glen Osmond, SA 5064, Australia Commonwealth Sci Ind Res Org Glen Osmond SA Australia 5064 064, Australia Univ Adelaide, Dept Plant Sci, Glen Osmond, SA 5064, Australia Univ Adelaide Glen Osmond SA Australia 5064 en Osmond, SA 5064, Australia Commonwealth Sci Ind Res Org, Canberra, ACT 2601, Australia Commonwealth Sci Ind Res Org Canberra ACT Australia 2601 2601, Australia
Titolo Testata:
DEVELOPMENT
fascicolo: 12, volume: 128, anno: 2001,
pagine: 2321 - 2331
SICI:
0950-1991(200106)128:12<2321:FDIARI>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
GIBBERELLIN SIGNAL-TRANSDUCTION; INDEPENDENT SEED DEVELOPMENT; POLYCOMB GROUP GENE; ENDOSPERM DEVELOPMENT; LATERAL-SUPPRESSOR; LOCUS ENCODES; THALIANA; EXPRESSION; REGULATOR; PATHWAY;
Keywords:
parthenocarpic fruit development; ovule; carpel; fertilization; asymmetric cell division; GRAS gene; auxin; gibberellin; Arabidopsis thaliana;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
58
Recensione:
Indirizzi per estratti:
Indirizzo: Koltunow, A Commonwealth Sci Ind Res Org, Hort Res Unit, POB 350, Glen Osmond, SA 5064, Australia Commonwealth Sci Ind Res Org POB 350 Glen Osmond SAAustralia 5064
Citazione:
A. Vivian-Smith et al., "Fruit development is actively restricted in the absence of fertilization in Arabidopsis", DEVELOPMENT, 128(12), 2001, pp. 2321-2331

Abstract

Flowering plants usually require fertilization to form fruit and seed and to initiate floral organ abscission in structures that do not contribute tothe fruit. An Arabidopsis mutant that initiates seedless fruit without fertilization (fwf) or parthenocarpy was isolated and characterized to understand the factors regulating the transition between the mature flower and theinitiation of seed and fruit development. The fwf mutant is fertile and has normal plant growth and stature. It sets fertile seed following self-pollination and fertilization needs to be prevented to observe parthenocarpy. The initiation of parthenocarpic siliques (fruit) was found to be dependent upon carpel valve identity conferred by FRUITFULL but was independent of the perception of gibberellic acid, shown to stimulate parthenocarpy in Arabidopsis following exogenous application. The recessive nature of fwf is consistent with the involvement of FWF in processes that inhibit fruit growth and differentiation in the absence of fertilization. The enhanced cell division and expansion in the silique mesocarp layer, and increased lateral vascular bundle development imply FWF has roles also in modulating silique growth post-fertilization. Parthenocarpy was inhibited by the presence of otherfloral organs suggesting that both functional FWF activity and inter-organcommunication act in concert to prevent fruit initiation in the absence offertilization.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 05:34:10