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Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species
Zhao, Hongxia1; Zhang, Sheng1; Li, Junyu1,2; Song, Mengya1,2; Pang, Jiayin3,4
2018
Source PublicationTREES-STRUCTURE AND FUNCTION
ISSN0931-1890
EISSN1432-2285
Volume32Issue:2Pages:473-488
SubtypeArticle
Contribution Rank1
AbstractPopulus cathayana was employed as a model species to study sexual differences in plant growth, physiological, biochemical, and ultrastructural responses to manganese (Mn) stress with two different nitrogen sources (NH4 (+) and NO3 (-)). Results showed that NH4 (+)-N (3.75 mM) and NO3 (-)-N (3.75 mM) significantly increased plant growth, gas exchange capacity, as well as superoxide dismutase (SOD) and peroxidase (POD) activities in the leaves of both male and female P. cathayana. In addition, NH4 (+)-N supply could improve tolerance to Mn stress in both male and female P. cathayana with higher photosynthetic capabilities, biomass accumulation, antioxidant enzyme activities, superoxide radicals (O-2 (-)) and thiobarbituric acid-reactive substances (TBARS) in leaves. Under the same condition, female plants grown under NO3 (-) supply exhibited significantly lower biomass accumulation, photosynthetic capabilities, and antioxidant enzyme activities than male plants because of higher Mn accumulation in both above- and belowground organs and higher ROS releasing rate in leaves. Moreover, damage to cellular ultrastructure was also observed in leaves of males and females exposed to Mn stress, but more strongly in females, with more visible degradation of mitochondrion in plant leave cells. The difference in the preferences for different N sources between male and female P. cathayana under Mn stress provides important guidance in fertilizing strategy to minimise intraspecific competition between female and male plants.
KeywordPoplar Mn stress Sex dimorphism N sources ROS accumulation
DOI10.1007/s00468-017-1644-1
Indexed BySCI
WOS KeywordTRITICUM-AESTIVUM L ; POPULUS-CATHAYANA ; SALINITY STRESS ; HEAVY-METALS ; ADAPTIVE RESPONSES ; NITRATE REDUCTASE ; HYDROGEN-PEROXIDE ; NITROGEN-SOURCES ; PHOTOSYSTEM-II ; HIGHER-PLANTS
Language英语
Quartile3区
Funding ProjectNational Natural Science Foundation of China[31100289] ; Young Talent Team Program of the Institute of Mountain Hazards and Environment[SDSQB-2012-02]
TOP
WOS Research AreaForestry
WOS SubjectForestry
WOS IDWOS:000427709200011
Funding OrganizationNational Natural Science Foundation of China ; Young Talent Team Program of the Institute of Mountain Hazards and Environment
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/22530
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorZhao, Hongxia
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, POB 417, Chengdu 610041, Sichuan, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China;
3.Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia;
4.Univ Western Australia, Sch Agr & Environm, Perth, WA 6001, Australia
Recommended Citation
GB/T 7714
Zhao, Hongxia,Zhang, Sheng,Li, Junyu,et al. Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species[J]. TREES-STRUCTURE AND FUNCTION,2018,32(2):473-488.
APA Zhao, Hongxia,Zhang, Sheng,Li, Junyu,Song, Mengya,&Pang, Jiayin.(2018).Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species.TREES-STRUCTURE AND FUNCTION,32(2),473-488.
MLA Zhao, Hongxia,et al."Effects of NH4 (+) and NO3 (-) on sexual dimorphism responses to manganese stress in a dioecious tree species".TREES-STRUCTURE AND FUNCTION 32.2(2018):473-488.
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