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

doi:10.1016/j.foreco.2020.118754

	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
	Shi, Jianmin 1; Mao, Siyu ; Wang, Longfeng ; Ye, Xuehua 2; Wu, Juan 1; Wang, Guangru 1; Chen, Fusheng ; Yang, Qingpei 1
	2021
发表期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
卷号	481
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.
关键词	Physiological integration Stable isotopes Distance effect Temporal-spatial pattern Monopodial bamboo Bamboo expansion Fertilizer application
学科领域	Forestry
DOI	10.1016/j.foreco.2020.118754
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000607482200022
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1872-7042
资助机构	National Natural Science Foundation of China [31660198, 31260174]
作者邮箱	Jianminshi@jxau.edu.cn
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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 Agr Univ, Coll Forestry, Nanchang 330045, Jiangxi, Peoples R China 2.Jiangxi Prov Key Lab Bamboo Germplasm Resources &, 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).

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