Immunolocalization of arabinogalactan proteins (AGPs) in reproductive structures of an early-divergent angiosperm, Trithuria (Hydatellaceae)

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Mario Costa (Author) Other; Ana Marta Pereira (Author) Other; Paula J Rudall (Author) Other; Silvia Coimbra (Author) FCUP

Journal

Title: Annals of Botany

Vol. 111

Pages: 183-190

ISSN: 0305-7364

Publisher: Oxford University Press

Indexing

ISI Web of Knowledge - 27 Citations

Scopus - 28 Citations

Scientific classification

FOS: Natural sciences > Biological sciences

Other information

Authenticus ID: P-002-0V6

DOI: 10.1093/aob/mcs256

Abstract (EN): is the sole genus of Hydatellaceae, a family of the early-divergent angiosperm lineage Nymphaeales (water-lilies). In this study different arabinogalactan protein (AGP) epitopes in T. submersa were evaluated in order to understand the diversity of these proteins and their functions in flowering plants. Immunolabelling of different AGPs and pectin epitopes in reproductive structures of T. submersa at the stage of early seed development was achieved by immunofluorescence of specific antibodies. AGPs in Trithuria pistil tissues could be important as structural proteins and also as possible signalling molecules. Intense labelling was obtained with anti-AGP antibodies both in the anthers and in the intine wall, the latter associated with pollen tube emergence. AGPs could play a significant role in Trithuria reproduction, due to their specific presence in the pollen tube pathway. The results agree with labellings obtained for Arabidopsis and confirms the importance of AGPs in angiosperm reproductive structures as essential structural components and probably important signalling molecules.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8