Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00425-009-1026-z |
Histone modifications associated with drought tolerance in the desert plant Zygophyllum dumosum Boiss | |
Granot, Gila1; Sikron-Persi, Noga1; Gaspan, Ofer1; Florentin, Assa1; Talwara, Susheela1; Paul, Laju K.1; Morgenstern, Yaakov1; Granot, Yigal2; Grafi, Gideon1 | |
通讯作者 | Grafi, Gideon |
来源期刊 | PLANTA
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ISSN | 0032-0935 |
EISSN | 1432-2048 |
出版年 | 2009 |
卷号 | 231期号:1页码:27-34 |
英文摘要 | Zygophyllum dumosum Boiss. is a perennial Saharo-Arabian phytogeographical element and a dominant shrub on the rocky limestone southeast-facing slopes of the Negev desert. The plant is highly active during the winter, and semideciduous during the dry summer, i.e., it sheds its leaflets, while leaving the thick, fleshy petiole green and rather active during the dry season. Being resistant to extreme perennial drought, Z. dumosum appears to provide an intriguing model plant for studying epigenetic mechanisms associated with drought tolerance in natural habitats. The transition from the wet to the dry season was accompanied by a significant decrease in nuclear size and with posttranslational modifications of histone H3 N-terminal tail. Dimethylation of H3 at lysine 4 (H3K4)-a modification associated with active gene expression-was found to be high during the wet season but gradually diminished on progression to the dry season. Unexpectedly, H3K9 di- and trimethylation as well as H3K27 di- and trimethylation could not be detected in Z. dumosum; H3K9 monomethylation appears to be prominent in Z. dumosum during the wet but not during the dry season. Contrary to Z. dumosum, H3K9 dimethylation was detected in other desert plants, including Artemisia sieberi, Anabasis articulata and Haloxylon scoparium. Taken together, our results demonstrate dynamic genome organization and unique pattern of histone H3 methylation displayed by Z. dumosum, which could have an adaptive value in variable environments of the Negev desert. |
英文关键词 | Chromatin Desert plant Drought tolerance Epigenetics Histone modification Nuclear size Zygophyllum |
类型 | Article |
语种 | 英语 |
国家 | Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000271938900003 |
WOS关键词 | DNA METHYLATION ; H3 LYSINE-9 ; NORTHERN NEGEV ; CHROMATIN ; ARABIDOPSIS ; HETEROCHROMATIN ; METHYLTRANSFERASES ; CHROMOSOMES ; GENOME ; DOMAIN |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/162279 |
作者单位 | 1.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, French Associates Inst Agr & Biotechnol Drylands, IL-84990 Midreshet Ben Gurion, Israel; 2.Interdisciplinary Ctr, IL-84990 Midreshet Sde Boker, Israel |
推荐引用方式 GB/T 7714 | Granot, Gila,Sikron-Persi, Noga,Gaspan, Ofer,et al. Histone modifications associated with drought tolerance in the desert plant Zygophyllum dumosum Boiss[J]. Ben-Gurion University of the Negev,2009,231(1):27-34. |
APA | Granot, Gila.,Sikron-Persi, Noga.,Gaspan, Ofer.,Florentin, Assa.,Talwara, Susheela.,...&Grafi, Gideon.(2009).Histone modifications associated with drought tolerance in the desert plant Zygophyllum dumosum Boiss.PLANTA,231(1),27-34. |
MLA | Granot, Gila,et al."Histone modifications associated with drought tolerance in the desert plant Zygophyllum dumosum Boiss".PLANTA 231.1(2009):27-34. |
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