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Abstract Detail


Pteridological Section/AFS

Bretzman, Jayna [1], Diamond, Hope [2], Swatzell, Lucinda [1].

Changes in PIP1 Aquaporin Expression Following Rehydration of Cheilanthes lanosa Gametophytes.

Cheilanthes lanosa is a xerophytic fern that exhibits desiccation tolerance. The gametophyte can dry completely and return to full volume within minutes upon rehydration. Clearly, the dehydrated fern possesses aquaporins that allow this rapid influx, but there are many unanswered questions about the type of aquaporin and quantity maintained during desiccation. In this study, dehydrated gametophytes were examined for the presence and quantity of PIP1 aquaporins. This was compared to the presence and quantity of PIP1 aquaporin in rehydrated gametophytes for up to 24 hr. Gametophytes rehydrated for only 1 hr contain similar amounts of PIP1. However, gametophytes that had been rehydrated for 24 hr contained significantly less PIP1. Results suggest a molecular memory or a change in aquaporin type following rehydration.

Broader Impacts:


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1 - Southeast Missouri State University, Biology, Mail Stop 6200, One University Plaza, Cape Girardeau, MO, 63701, USA
2 - University of North Texas, Risk Management Services, 1155 Union Circle #310950, Denton, TX, 76203-5017, USA

Keywords:
aquaporin
fern gametophyte
Cheilanthes lanosa.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Khorassan Ballroom/Chase Park Plaza
Date: Monday, July 11th, 2011
Time: 5:30 PM
Number: PPD003
Abstract ID:973


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