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Clonal integration driven by source-sink relationships is constrained by rhizome branching architecture in a running bamboo species (Phyllostachys glauca): A N-15 assessment in the field

文献类型：期刊论文

作者Shi, Jianmin2; Mao, Siyu; Wang, Longfeng; Ye, Xuehua1; Wu, Juan2; Wang, Guangru2; Chen, Fusheng; Yang, Qingpei2
刊名FOREST ECOLOGY AND MANAGEMENT
出版日期2021
卷号481
ISSN号0378-1127
关键词Physiological integration Stable isotopes Distance effect Temporal-spatial pattern Monopodial bamboo Bamboo expansion Fertilizer application
DOI10.1016/j.foreco.2020.118754
文献子类Article
英文摘要Source-sink relationships and branching architecture are two determinants of clonal integration, but their joint effects on resource translocation are still unclear. Our aim was to elucidate the pattern and mechanism of resource translocation controlled by source-sink relationships and branching architecture. We conducted a N-15-tracing experiment in six plots of a running bamboo, Phyllostachys glauca, in the field. The immature ramets and mature ramets were defined as strong sinks and weak sinks according to their sink strength, and the territories of integrated ramets were classified into zero-barrier zones and barrier zones considering rhizome branching architecture. The translocation of N-15 for all ramets showed a logarithmic pattern over time with a peak around the fifth week after labelling. Spatially, N-15 was exported first to ramets in zero-barrier zones within three days and then to ramets in barrier zones within three weeks. Ramets in zero-barrier zones had a significantly higher translocation intensity (1653.2 parts per thousand), speed (1.95 m/day) and amount (39.9 mg kg(-1)), and a shorter translocation time (three days) than ramets in barrier zones (61.3 parts per thousand, 0.86 m/day, 2.3 mg kg(-1) and 1.4 weeks, respectively). In zero-barrier zones, translocation intensity and amount in immature ramets were 6.7 and 3.4 times greater than those in mature ramets, respectively. In barrier zones, translocation traits (intensity, speed, time, amount) of immature ramets and mature ramets were similar. In addition, distance did not affect nitrogen translocation pattern or the effects of rhizome branching architecture and source-sink relationships on nitrogen translocation. The nitrogen translocation was mainly confined in zero-barrier zones by rhizome branching architecture, where source-sink relationships worked. In the clonal integration of P. glauca, source-sink relationships are the driving forces, while rhizome branching architecture acts as a flow restrictor. The results provide implications for spreading control and fertilizer applications on running bamboos.
学科主题Forestry
电子版国际标准刊号1872-7042
出版地AMSTERDAM
WOS关键词PHYSIOLOGICAL INTEGRATION ; TRIFOLIUM-REPENS ; NITROGEN TRANSLOCATION ; GLECHOMA-HEDERACEA ; FRAGARIA-VESCA ; GROWTH ; FOREST ; PLANT ; HERB ; AVAILABILITY
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者ELSEVIER
WOS记录号WOS:000607482200022
资助机构National Natural Science Foundation of China [31660198, 31260174]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26780]  
专题植被与环境变化国家重点实验室
作者单位1.Jiangxi Prov Key Lab Bamboo Germplasm Resources &, Nanchang 330045, Jiangxi, Peoples R China
2.Jiangxi Agr Univ, Coll Forestry, Nanchang 330045, Jiangxi, Peoples R China
3.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Jianmin,Mao, Siyu,Wang, Longfeng,et al. Clonal integration driven by source-sink relationships is constrained by rhizome branching architecture in a running bamboo species (Phyllostachys glauca): A N-15 assessment in the field[J]. FOREST ECOLOGY AND MANAGEMENT,2021,481.
APA Shi, Jianmin.,Mao, Siyu.,Wang, Longfeng.,Ye, Xuehua.,Wu, Juan.,...&Yang, Qingpei.(2021).Clonal integration driven by source-sink relationships is constrained by rhizome branching architecture in a running bamboo species (Phyllostachys glauca): A N-15 assessment in the field.FOREST ECOLOGY AND MANAGEMENT,481.
MLA Shi, Jianmin,et al."Clonal integration driven by source-sink relationships is constrained by rhizome branching architecture in a running bamboo species (Phyllostachys glauca): A N-15 assessment in the field".FOREST ECOLOGY AND MANAGEMENT 481(2021).

入库方式： OAI收割

来源：植物研究所

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