Root Physiological Changes and Transcription Analysis of <i>Iris domestica</i> in Response to Persistent Drought
Qiang Ai,
Yingxin Sun,
Ailin Dai,
Zeliang LYU,
Cuijing Liu,
Mei Han,
Limin Yang
Affiliations
Qiang Ai
Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province and Ministry of Science and Technology, Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
Yingxin Sun
Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province and Ministry of Science and Technology, Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
Ailin Dai
Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province and Ministry of Science and Technology, Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
Zeliang LYU
Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province and Ministry of Science and Technology, Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
Cuijing Liu
Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province and Ministry of Science and Technology, Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
Mei Han
Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province and Ministry of Science and Technology, Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
Limin Yang
Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province and Ministry of Science and Technology, Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
Iris domestica is a popular gardening plant. Although the species is considered tolerant to drought, its growth and development are often affected by drought conditions. Therefore, revealing the regulatory mechanisms of drought tolerance in this species will aid in its cultivation and molecular breeding. In this study, morpho-physiological and transcriptome analyses of the roots of I. domestica plants were performed under persistent drought conditions. Peroxidase activity, proline content, and tectoridin content increased under sustained drought conditions. Transcriptome analysis showed that the roots of I. domestica seedlings respond to drought mainly by regulating the expression of drought-resistant genes and biosynthesis of secondary metabolites. This study provides basic data for identifying drought response mechanisms in Iris domestica.
