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Abstract Detail



Pteridological Section/AFS

Pipkin, Chelsea [1], Swatzell, Lucinda [2].

PIP2 Aquaporin involvement in Cheilanthes lanosa gametophytes during desiccation and rehydration.

Cheilanthes lanosa is a xerophytic fern that is found on bluff edges in the Midwestern to Eastern regions of North America. The species is adapted for life in a full sun environment. During the reproductive cycle, C. lanosa gametophytes are highly vulnerable; the gametophyte is one cell thick. Drought during this stage in the life cycle could be detrimental. However, the gametophyte does have the exceptional ability to dehydrate during desiccation and with subsequent watering, fully rehydrate. Desiccation tolerance is a complex adaptation that is multifaceted, involving numerous mechanisms. This study will focus on PIP2 aquaporins. Earlier studies indicate that PIP2 aquaporins play a significant role in dehydration. Therefore, this study will quantify PIP2 aquaporin presence during all stages of gametophyte development, in dehydrated gametophytes, gametophytes rehydrated for 0, 1, and 24 hours. In addition, we make comparisons concerning aquaporin quantities of PIP1 present during dehydration and rehydration, established in previous studies, to PIP2 presence during these states.

Broader Impacts:


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1 - Southeast Missouri State University, Mail Stop 6200, One University Plaza, Cape Girardeau, MO, 63701, USA
2 - SOUTHEAST MISSOURI STATE UNIVERSITY, Biology Dept, MS 6200, One University Plaza, CAPE GIRARDEAU, MO, 63701-4869, USA

Keywords:
Cheilanthes lanosa
desiccation
rehydration
gametophyte
PIP2 aquaporins.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Grand Salon A - D/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 5:30 PM
Number: PPD001
Abstract ID:178
Candidate for Awards:None


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