title: Effect on Soil Properties ofBcWRKY1Transgenic Maize with Enhanced Salinity Tolerance.
abstract: Maize (Zea maysL.) is the most important cereal crop in the world. However, soil salinity has become a major problem affecting plant productivity due to arable field degradation. Thus, transgenic maize transformed with a salinity tolerance gene has been developed to further evaluate its salt tolerance and effects on agronomic traits. It is necessary to analyze the potential environmental risk of transgenic maize before further commercialization. Enzyme activities, physicochemical properties, and microbial populations were evaluated in saline and nonsaline rhizosphere soils from a transgenic maize line (WL-73) overexpressingBcWRKY1and from wild-type (WT) maize LH1037. Measurements were taken at four growth stages (V3, V9, R1, and R6) and repeated in three consecutive years (2012-2014). There was no change in the rhizosphere soils of either WL-73 or WT plants in the four soil enzyme activities, seven soil physicochemical properties, and the populations of three soil organisms. The results of this study suggested that salinity tolerant transgenic maize had no adverse impact on soil properties in soil rhizosphere during three consecutive years at two different locations and provided a theoretical basis for environmental impact monitoring of salinity tolerant transgenic maize.
authors.affiliation: College of Agronomy, Northeast Agricultural University, Mucai Street, Xiangfang District, Harbin, Heilongjiang 150030, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Zeng
authors.affiliation: College of Agronomy, Northeast Agricultural University, Mucai Street, Xiangfang District, Harbin, Heilongjiang 150030, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: College of Agronomy, Northeast Agricultural University, Mucai Street, Xiangfang District, Harbin, Heilongjiang 150030, China.
authors.forename: Zhongjia
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: College of Agronomy, Northeast Agricultural University, Mucai Street, Xiangfang District, Harbin, Heilongjiang 150030, China.
authors.forename: Hongyue
authors.initials: H
authors.lastname: Zu
authors.affiliation: College of Agronomy, Northeast Agricultural University, Mucai Street, Xiangfang District, Harbin, Heilongjiang 150030, China.
authors.forename: Shumin
authors.identifier: 0000-0001-8091-2138
authors.initials: S
authors.lastname: Wang
authors.affiliation: College of Agronomy, Northeast Agricultural University, Mucai Street, Xiangfang District, Harbin, Heilongjiang 150030, China.
authors.forename: Hong
authors.identifier: 0000-0003-0955-4918
authors.initials: H
authors.lastname: Di
authors.affiliation: College of Agronomy, Northeast Agricultural University, Mucai Street, Xiangfang District, Harbin, Heilongjiang 150030, China.
authors.forename: Zhenhua
authors.identifier: 0000-0002-7980-1825
authors.initials: Z
authors.lastname: Wang