干旱区生态环境知识资源中心(Arid): Aquaporins are main contributors to root hydraulic conductivity in pearl millet [Pennisetum glaucum (L) R. Br.]

Arid

DOI	10.1371/journal.pone.0233481
	Aquaporins are main contributors to root hydraulic conductivity in pearl millet [Pennisetum glaucum (L) R. Br.]
	Grondin, Alexandre; Affortit, Pablo; Tranchant-Dubreuil, Christine; de la Fuente-Canto, Carla; Mariac, Cedric; Gantet, Pascal; Vadez, Vincent; Vigouroux, Yves; Laplaze, Laurent
通讯作者	Grondin, A
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2020
卷号	15 期号:10
英文摘要	Pearl millet is a key cereal for food security in arid and semi-arid regions but its yield is increasingly threatened by water stress. Physiological mechanisms relating to conservation of soil water or increased water use efficiency can alleviate that stress. Aquaporins (AQP) are water channels that mediate root water transport, thereby influencing plant hydraulics, transpiration and soil water conservation. However, AQP remain largely uncharacterized in pearl millet. Here, we studied AQP function in root water transport in two pearl millet lines contrasting for water use efficiency (WUE). We observed that these lines also contrasted for root hydraulic conductivity (Lpr) and AQP contribution to Lpr. The line with lower WUE showed significantly higher AQP contribution to Lpr. To investigate AQP isoforms contributing to Lpr, we developed genomic approaches to first identify the entire AQP family in pearl millet and secondly, characterize the plasma membrane intrinsic proteins (PIP) gene expression profile. We identified and annotated 33 AQP genes in pearl millet, among which ten encoded PIP isoforms. PgPIP1-3 and PgPIP1-4 were significantly more expressed in the line showing lower WUE, higher Lpr and higher AQP contribution to Lpr. Overall, our study suggests that the PIP1 AQP family are the main regulators of Lpr in pearl millet and may possibly be associated with mechanisms associated to whole plant water use. This study paves the way for further investigations on AQP functions in pearl millet hydraulics and adaptation to environmental stresses.
类型	Article
语种	英语
开放获取类型	Green Published, gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000590270000006
WOS关键词	PLASMA-MEMBRANE AQUAPORINS ; MAJOR INTRINSIC PROTEINS ; WATER TRANSPORT ; TRANSPIRATION RESPONSE ; STRESS TOLERANCE ; DROUGHT STRESS ; ARABIDOPSIS ; CHANNELS ; SELECTIVITY ; EXPRESSION
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	French National Research Institute for Sustainable Development ; International Crops Research Institute for the Semi-Arid Tropics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327549
作者单位	[Grondin, Alexandre; Affortit, Pablo; Tranchant-Dubreuil, Christine; de la Fuente-Canto, Carla; Mariac, Cedric; Gantet, Pascal; Vadez, Vincent; Vigouroux, Yves; Laplaze, Laurent] Univ Montpellier, IRD, UMR DIADE, Montpellier, France; [Grondin, Alexandre; Affortit, Pablo; Laplaze, Laurent] Lab Mixte Int Adaptat Plantes & Microorganismes A, Dakar, Senegal; [Grondin, Alexandre] Lab Commun Microbiol, Dakar, Senegal; [Grondin, Alexandre] Ctr Etud Reg Ameliorat Ameliorat Adaptat Secheres, Thies, Senegal; [Vadez, Vincent] Int Crops Res Inst Semi Arid Trop, Hyderabad, India
推荐引用方式 GB/T 7714	Grondin, Alexandre,Affortit, Pablo,Tranchant-Dubreuil, Christine,et al. Aquaporins are main contributors to root hydraulic conductivity in pearl millet [Pennisetum glaucum (L) R. Br.][J]. French National Research Institute for Sustainable Development, International Crops Research Institute for the Semi-Arid Tropics,2020,15(10).
APA	Grondin, Alexandre.,Affortit, Pablo.,Tranchant-Dubreuil, Christine.,de la Fuente-Canto, Carla.,Mariac, Cedric.,...&Laplaze, Laurent.(2020).Aquaporins are main contributors to root hydraulic conductivity in pearl millet [Pennisetum glaucum (L) R. Br.].PLOS ONE,15(10).
MLA	Grondin, Alexandre,et al."Aquaporins are main contributors to root hydraulic conductivity in pearl millet [Pennisetum glaucum (L) R. Br.]".PLOS ONE 15.10(2020).