| 153 | 4 | 221 |
| 下载次数 | 被引频次 | 阅读次数 |
通过盆栽试验,研究UV-B辐射增强下接种丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF)对冬小麦灌浆期光合和蒸腾生理及根系生物量的影响。UV-B辐射设2个水平,即自然光[对照,1.5 k J/(m2·h)]和UV-B增强[增强20%,1.8k J/(m2·h)],AMF设2个水平,即+AMF(接种)和-AMF(不接种)。结果表明,UV-B辐射增强下,接种AMF对冬小麦灌浆期旗叶净光合速率下降趋势有延缓作用,但对根系生物量影响不明显;同时,冬小麦灌浆期旗叶气孔导度和胞间CO2浓度显著升高,接种AMF对其有抑制作用。
Abstract：The present study investigated the effects of Arbuscular mycorrhizal fungi( AMF) on the physiological characteristics and root biomass of winter wheat at the grain filling stage under enhanced UV- B radiation. To achieve this goal,a pot experiment was conducted with Ningmai 13 as the tested wheat variety,involving two UV- B radiation levels- ambient [1. 5 k J /( m2·h) ]and elevated UV- B [1. 8 k J /( m2·h) ]- and two AMF inoculating levels: + AMF( with inoculating AMF) and- AMF( without inoculating AMF). The results showed that inoculating AMF slowed down the trend of decline of net photosynthetic rate at the late grain filling stage. In addition,inoculating AMF had no obvious effect on root biomass. Enhanced UV- B radiation increased the stomatal conductance and intercellular CO2 concentration in winter wheat leaves at the grain filling stage,which could be inhibited by inoculating AMF.
[1]CALDWELL M M,BJORN L O,BORNMAN J F,et al.Effects of increased solar ultraviolet radiation on terrestrial ecosystems[J].Journal of Photochemistry and Photobiology B:Biology,1998,46(1/2/3):40-52.
[2]MADRONICH S,MCKENZIE R L,BJORN L O,et al.Changes in biologically active ultraviolet radiation reaching the Earth's surface[J].Journal of Photochemistry and Photobiology B:Biology,1998,46(1/2/3):5-19.
[3]王少彬,苏维瀚,魏鼎文.太阳紫外辐射的生物有效性与大气臭氧含量减少的关系[J].环境科学学报,1993,13(1):114-119.
[4]江晓东,张洁,杨再强,等.增强紫外线-B辐射对冬小麦产量和光合特性的影响[J].农业工程学报,2013,29(18):191-199.
[5]娄运生,黄岩,李永秀,等.UV-B辐射增强对不同大麦品种生理特性的影响[J].生态与农村环境学报,2011,27(4):51-55.
[6]吴杏春,林文雄,黄忠良.UV-B辐射增强对两种不同抗性水稻叶片光合生理及超显微结构的影响[J].生态学报,2007,27(2):554-564.
[7]MOHAMMED A R,TARPLEY L.Morphological and physiological responses of nine southern U.S.rice cultivars differing in their tolerance to enhanced vltraviolet-B radiation[J].Environmental and Experimental Botany,2011,70(2/3):174-184.
[8]XU K,QIU B S.Response of super high-yield hybrid rice liangyoupeijiu to enhancement of ultraviolet-B radiation[J].Plant Science,2007,172(1):139-149.
[9]赵广才,常旭红,王德梅,等.中国小麦生产发展潜力研究报告[J].作物杂志,2012(3):1-5.
[10]张伟杨,顾道健,王志琴.小麦籽粒灌浆的研究进展[J].安徽农业科学,2014,42(8):2217-2220,2285.
[11]杨雪,张龄祺,刘吉开.菌根研究进展简述[J].云南大学学报(自然科学版),2001,23(植物学专辑):85-87.
[12]孙吉庆,刘润进,李敏.丛枝菌根真菌提高植物抗逆性的效应及其机制研究进展[J].植物生理学报,2012,48(9):845-852.
[13]梁倩倩,李敏,刘润进,等.全球变化下菌根真菌的作用及其作用机制[J].生态学报,2014,34(21):6039-6048.
[14]郑红丽,邢杰,胡俊,等.两种丛枝菌根真菌对小麦和大豆生长的影响[J].内蒙古农业大学学报,2002,23(1):104-106.
基本信息:
DOI：10.14069/j.cnki.32-1769/s.2016.04.003
中图分类号:S512.11
引用信息:
[1]陈泽方,孙晓岩,于诗赟,等.UV-B增强下AMF对冬小麦灌浆期光合特性及根系生物量的影响[J],2016,33(04):11-14.DOI:10.14069/j.cnki.32-1769/s.2016.04.003.
基金信息:
国家自然科学基金(41375159);; 江苏省自然科学基金(BK20131430);; 江苏省高校大学生创新训练计划项目
2016-07-27
2016
2016-11-14
2016
1