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学科主题: 生物科学::植物学
题名: Carbon Monoxide Interacts with Auxin and Nitric Oxide to Cope with Iron Deficiency in Arabidopsis
作者: Yang, LM (Yang, Liming)1, 2, 3; Ji, JH (Ji, Jianhui)1; Wang, HL (Wang, Hongliang)4; Harris-Shultz, KR (Harris-Shultz, Karen R.)4; Abd Allah, EF (Abd Allah, Elsayed F.)5; Luo, YM (Luo, Yuming)1; Guan, YL (Guan, Yanlong)6; Hu, XY (Hu, Xiangyang)6
通讯作者: Guan, YL ; Hu, XY
刊名: FRONTIERS IN PLANT SCIENCE
发表日期: 2016
DOI: 10.3389/fpls.2016.00112
卷: 7, 期:0, 页:112
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: To clarify the roles of carbon monoxide (CO), nitric oxide (NO), and auxin in the plant response to iron deficiency (-Fe), and to establish how the signaling molecules interact to enhance Fe acquisition, we conducted physiological, genetic, and molecular analyses that compared the responses of various Arabidopsis mutants, including hy1 (CO deficient), noa1 (NO deficient), nia1/nia2 (NO deficient), yuc1 (auxin over-accumulation), and cue1 (NO over-accumulation) to-Fe stress. We also generated a HY1 over expression line (named HY1-OX) in which CO is over-produced compared to wild-type. We found that the suppression of CO and NO generation using various inhibitors enhanced the sensitivity of wild-type plants to Fe depletion. Similarly, the hy1, noa1, and nia1/nia2 mutants were more sensitive to Fe deficiency. By contrast, the yuc1, cuel, and HY1-OX lines were less sensitive to Fe depletion. The hy1 mutant with low CO content exhibited no induced expression of the Fe uptake related genes FIT1 and FRO2 as compared to wild-type plants. On the other hand, the treatments of exogenous CO and NO enhanced Fe uptake. Likewise, cuel and HY1-OX lines with increased endogenous content of NO and CO, respectively, also exhibited enhanced Fe uptake and increased expression of bHLH transcriptional factor FIT1 as compared to wild-type plants. Furthermore, we found that CO affected auxin accumulation and transport in the root tip by altering the PIN1 and PIN2 proteins distribution that control lateral root structure under-Fe stress. Our results demonstrated the integration of CO, NO, and auxin signaling to cope with Fe deficiency in Arabidopsis.
语种: 英语
WOS记录号: WOS:000371398800001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7738
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Huaiyin Normal Univ, Jiangsu Collaborat Innovat Ctr Reg Modern Agr &, Jiangsu Key Lab Ecoagr Biotechnol Hongze Lake, Huaian, Peoples R China
2.USDA ARS, Crop Protect & Management Res Unit, Tifton, GA 31793 USA
3.Univ Georgia, Dept Plant Pathol, Tifton, GA 31793 USA
4.USDA ARS, Crop Genet & Breeding Res Unit, Tifton, GA 31793 USA
5.King Saud Univ, Coll Food & Agr Sci, Dept Plant Prod, Riyadh, Saudi Arabia
6.Chinese Acad Sci, Inst Tibet Plateau Res Kunming, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming, Peoples R China

Recommended Citation:
Yang, LM ,Ji, JH ,Wang, HL ,et al. Carbon Monoxide Interacts with Auxin and Nitric Oxide to Cope with Iron Deficiency in Arabidopsis[J]. FRONTIERS IN PLANT SCIENCE,2016,7(0):112.
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文件名: V.7 112 2016.pdf
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