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Editorial
. 2016 May 24;113(21):5774-6.
doi: 10.1073/pnas.1605750113. Epub 2016 May 13.

Molecular basis for differential light responses in Arabidopsis stems and leaves

Yun Hu  1 , Yunde Zhao  2
Affiliations
Editorial

Molecular basis for differential light responses in Arabidopsis stems and leaves

Yun Hu et al. Proc Natl Acad Sci U S A. .
No abstract available

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Fig. 1.
Fig. 1.
Differential expression of lirSAURs is a key determinant for the different growth rates of cotyledons and hypocotyls under various light conditions. (A) High lirSAUR levels stimulate growth, and low lirSAUR expression represses growth. Dark-grown plants have elevated lirSAUR expression in the elongated hypocotyls (red) and decreased expression of lirSAURs in the closed cotyledons (light blue). In contrast, light-grown seedlings have expanded cotyledons and short hypocotyls, which correlate with high lirSAUR expression in cotyledons and low lirSAUR expression in hypocotyls. Plants grown under shade have long hypocotyls, extended petioles, and small cotyledons. It is not clear whether lirSAURs also play a role in the differential growth of plants grown under shade. (B) Some SAUR genes are differentially expressed in plants grown under shade. A 1-h shade treatment is sufficient to induce the expression of many SAUR genes. Microarray data were previously reported by Tao et al. (17), and are available from the Gene Expression Omnibus (GEO) database (accession no. GSE9816). Wc, constant white light.
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