Ontogenetic variation in salinity tolerance and ecophysiology of coastal dune plants.

ABSTRACT:

Background and aims

Global climate change includes shifts in temperature and precipitation, increases in the frequency and intensity of extreme weather events and sea level rise, which will drastically impact coastal ecosystems. The aim of this study is to quantify salinity tolerance and to identify physiological mechanisms underlying tolerance across wholeplant ontogeny in two widespread native coastal plant species in Hawai'i, Jacquemontia sandwicensis (Convolvulaceae) and Sida fallax (Malvaceae).

Methods

At the seed, seedling, juvenile and mature ontogenetic stages, plants were exposed to high salinity watering treatments. Tolerance was assayed as the performance of stressed compared with control plants using multiple fitness metrics, including germination, survival, grow

SUBMITTER: Lum TD 

PROVIDER: S-EPMC7442332 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature