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Comparative Analyses of Stomatal Size and Density among Ecotypes of Aster hispidus (Asteraceae)

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Author(s): Yoshimasa Kumekawa | Haruki Miyata | Kyohei Ohga | Hiroshi Hayakawa | Jun Yokoyama | Katsura Ito | Shin-ichi Tebayashi | Ryo Arakawa | Tatsuya Fukuda

Journal: American Journal of Plant Sciences
ISSN 2158-2742

Volume: 04;
Issue: 03;
Start page: 524;
Date: 2013;
Original page

Keywords: Aster hispidus | Costal | Ecotype | Density | Guard Cell | Serpentine | Size

ABSTRACT
To determine the size and the density of stomata among different environments, we conducted anatomical analyses using Aster hispidus var. hispidus (open field), As. hispidus var. leptocladus (serpentine soil), and As. hispidus var. insularis (coastal). The stomatal size was not significantly different among these ecotypes but the density of stomata in the serpentine and coastal ecotypes was significantly lower than that of As. hispidus var. hispidus, which suggests that these ecotypes have experienced selection that reduced the density of stomata for adaptation to the dry conditions of serpentine and coastal areas.
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