Localised and non-localised promotion of fruit development by seeds in Arabidopsis

Functional Plant Biology : FPB
Catherine M Cox, S M Swain

Abstract

In Arabidopsis, as in the majority of flowering plants, developing seeds promote fruit growth. One method to investigate this interaction is to use plants with reduced seed set and determine the effect on fruit growth. Plants homozygous for a transgene designed to ectopically express a gene encoding a gibberellin-deactivating enzyme exhibit reduced pollen tube elongation, suggesting that the plant hormone gibberellin is required for this process. Reduced pollen tube growth causes reduced seed set and decreased silique (fruit) size, and this genotype is used to explore the relationship between seed set and fruit elongation. A detailed analysis of seed set in the transgenic line reveals that reduced pollen tube growth decreases the probability of each ovule being fertilised. This effect becomes progressively more severe as the distance between the stigma and the ovule increases, revealing the complex biology underlying seed fertilisation. In terms of seed-promoted fruit growth, major localised and minor non-localised components that contribute to final silique length can be identified. This result demonstrates that despite the relatively small size of the fruit and associated structures, Arabidopsis can be used as a model to inve...Continue Reading

References

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Citations

Nov 24, 2019·Proceedings of the National Academy of Sciences of the United States of America·Juan-José RipollAdrienne H K Roeder
Dec 1, 2008·Functional Plant Biology : FPB·Angélique ChristopheJérémie Lecœur
Apr 16, 2019·American Journal of Botany·Harshita Dogra, K G Srikanta Dani
Jan 21, 2011·Plant Signaling & Behavior·Steve SwainMikihiro Ogawa
Sep 1, 2006·Functional Plant Biology : FPB·Saichol KetsaWouter G van Doorn
Jun 26, 2014·The Plant Journal : for Cell and Molecular Biology·Carolina Gallego-GiraldoMiguel A Perez-Amador
Jun 1, 2006·Functional Plant Biology : FPB·Reinhard K ProelsThomas Roitsch
Jan 18, 2013·The New Phytologist·Kentaro SasakiRyozo Imai
Feb 12, 2009·The Plant Journal : for Cell and Molecular Biology·Eavan DorceyMiguel A Perez-Amador
Mar 3, 2019·Plant Science : an International Journal of Experimental Plant Biology·María Dolores GómezMiguel A Pérez-Amador
Jun 9, 2007·Plant Physiology·Janet I Sprent, Euan K James
Mar 23, 2011·Plant Science : an International Journal of Experimental Plant Biology·Irene OlimpieriAndrea Mazzucato

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Methods Mentioned

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Software Mentioned

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