Aims Ecological systems,especially soils,have been recently recognized as an important source of atmospheric nitric oxide(No).However,the study on the contribution of plants to atmospheric No budget is significantly l...Aims Ecological systems,especially soils,have been recently recognized as an important source of atmospheric nitric oxide(No).However,the study on the contribution of plants to atmospheric No budget is significantly lagged.The specific objectives of this study are to reveal the phylogenetic variation in No emission potential existing in various plant species and find out the possible leaf traits affecting No emission potential.Methods We measured No emission potential,leaf N and C content,C:N ratio,specific leaf area,net photosynthetic rate(Pn)and estimated photosynthetic N use efficiency(PNuE)of 88 plant species.Further investigation of the relationships between No emission potential and leaf traits were performed by simple linear regression analysis and pair-wise correlation coefficients analysis.Important Findingsmajor results are as follows:(1)No emission from plant species exhibited large variations,ranging from 0 to 41.7 nmol m^(−2) h^(−1),and the species frequency distributions of No emission potential could be fitted to a log-normal curve.(2)among 88 species,No emission potential was the highest in Podocarpus macrophyllus,but lowest in Zanthoxylum nitidum and Vernicia montana.(3)No emission potential has strong correlation to leaf N content,Pn and PNuE.The variations in No emission potential among diverse plant species may be closely related to leaf N level and net photosynthetic ability.展开更多
基金supported by a grant from the Postgraduate Innovation Project of Jiangsu Province,China(No. CX09B_284Z)the Natural Science Foundation of Jiangsu Province,China(No.BK2012378)
文摘十七个新奇 ilexgenin A 混血儿(IA 阿司匹林) 并且(IA -- 没有) 施主混血儿(IA -- 将不作为没有施主在 vivo 和功能不释放) ，被设计并且综合了以便为血小板混乱的处理开发新多指向的代理人。他们的在里面对自动数据处理， AA 和凝血酵素的 vitro 活动被评估。作为结果， IA 混血儿与 IA 相比在三条测试小径完成了实质的增加。鼓励地，大多数有势力混血儿混合物 6d 和 14d 比更高的力量分别地 0.15 mmol/L 和 0.14 mmol/L 比在与 IC50 禁止导致自动数据处理的聚集的阿司匹林和 IA 的同时的管理珍视的阿司匹林，和 3 褶层关于 8 褶层显示了更高的力量。结果建议这些 IA 混血儿是多目标治疗的好候选人，并且特别，可以被认为自动数据处理收缩筋同样有希望。
基金This study was financially supported by the Natural Science Foundation of China(NSFC)(31300505,31260057,30930076,30670317)Research Fund of State Key Laboratory of Soil and Sustainable Agriculture,Nanjing Institute of Soil Science,Chinese Academy of Science(Y412201449)+1 种基金China Postdoctoral Science Foundation(2012M521278)the Scholarship Award for Excellent Doctoral Student granted by the Chinese Ministry of Education.
文摘Aims Ecological systems,especially soils,have been recently recognized as an important source of atmospheric nitric oxide(No).However,the study on the contribution of plants to atmospheric No budget is significantly lagged.The specific objectives of this study are to reveal the phylogenetic variation in No emission potential existing in various plant species and find out the possible leaf traits affecting No emission potential.Methods We measured No emission potential,leaf N and C content,C:N ratio,specific leaf area,net photosynthetic rate(Pn)and estimated photosynthetic N use efficiency(PNuE)of 88 plant species.Further investigation of the relationships between No emission potential and leaf traits were performed by simple linear regression analysis and pair-wise correlation coefficients analysis.Important Findingsmajor results are as follows:(1)No emission from plant species exhibited large variations,ranging from 0 to 41.7 nmol m^(−2) h^(−1),and the species frequency distributions of No emission potential could be fitted to a log-normal curve.(2)among 88 species,No emission potential was the highest in Podocarpus macrophyllus,but lowest in Zanthoxylum nitidum and Vernicia montana.(3)No emission potential has strong correlation to leaf N content,Pn and PNuE.The variations in No emission potential among diverse plant species may be closely related to leaf N level and net photosynthetic ability.
