NDLI: PdERECTA, a leucine-rich repeat receptor-like kinase of poplar, confers enhanced water use efficiency in Arabidopsis

Content Provider	Springer Nature Link
Author	Xing, Hai Tao Guo, Peng Xia, Xin Li Yin, Wei Lun
Copyright Year	2011
Abstract	Water deficiency causes a dramatic reduction in crop production globally. Breeding crop varieties that are more efficient in their water use is one strategy to overcome this predicament. In this study, a member of the LRR-RLKs family, the Populus nigra × (Populus deltoides × Populus nigra) ERECTA (PdERECTA) gene was cloned. To study the biological functions of PdERECTA, transgenic Arabidopsis plants (35S:PdERECTA) that constitutively expressed the PdERECTA gene were constructed. Overexpression of PdERECTA resulted in early seedling establishment, longer primary roots, and larger leaf areas. Notably, transgenic Arabidopsis overexpressing PdERECTA resulted in enhanced long-term water use efficiency (WUEl), as estimated by the analysis of carbon isotopic discrimination. The WUEl results were supported by the physiological and anatomical results, which included improved photosynthetic rate, decreased transpiration rate, and stomatal density. The transgenic lines have significantly more dry-biomass as compared to the wild type. Since the overexpression of PdERECTA can strongly enhance the water use efficiency in transgenic Arabidopsis plants, PdERECTA could potentially be used in transgenic breeding to improve the water use efficiency.
Starting Page	229
Ending Page	241
Page Count	13
File Format	PDF
ISSN	00320935
Journal	Planta
Volume Number	234
Issue Number	2
e-ISSN	14322048
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-03-12
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Leucine-rich repeat receptor-like kinase Poplar Transgenic Arabidopsis plants Water use efficiency Forestry Plant Sciences Agriculture Ecology
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science

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