Responses of Artemisia frigida Willd. (Compositae) and Leymus chinensis (Trin.) Tzvel. (Poaceae) to sheep saliva

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	Responses of Artemisia frigida Willd. (Compositae) and Leymus chinensis (Trin.) Tzvel. (Poaceae) to sheep saliva
	Zhang, Z.; Wang, S.-P.; Jiang, G.-M.; Patton, B.; Nyren, P.
	2007-07-01
发表期刊	JOURNAL OF ARID ENVIRONMENTS
卷号	70 期号:1 页码:111-119
文章类型	Article
摘要	Although studies show that grazing and browsing by herbivores have marked effects on host plants, the mechanisms remain unclear. The objective of this study is to determine the effects of sheep saliva on host plant growth. Sheep saliva was manually applied to clipped plants of two different life forms, a semi-shrub, Artemisia frigida Willd., and a herbaceous species, Leymus chinensis (Trin.) Tzevel. The results showed that sheep saliva significantly enhanced aboveground net primary productivity (ANPP) and the ratio of ANPP to belowground net primary productivity (BNPP) for both species. This indicated that sheep saliva promotes aboveground compensatory growth and allocation of photosynthate to aboveground for both plant species. Sheep saliva stimulated only tillering of L. chinensis. Regardless of saliva application, clipping significantly decreased BNPP and plant height, but significantly increased the number of branches or tillers for both plant species. The relative growth rates (RGRs) on both species were significantly greater after clipping with saliva compared with control and clipping without saliva treatments. In addition, RGR of the herbaceous species L. chinensis was faster than that of the semi-shrub A. frigida after application of saliva. (c) 2006 Elsevier Ltd. All rights reserved.; Although studies show that grazing and browsing by herbivores have marked effects on host plants, the mechanisms remain unclear. The objective of this study is to determine the effects of sheep saliva on host plant growth. Sheep saliva was manually applied to clipped plants of two different life forms, a semi-shrub, Artemisia frigida Willd., and a herbaceous species, Leymus chinensis (Trin.) Tzevel. The results showed that sheep saliva significantly enhanced aboveground net primary productivity (ANPP) and the ratio of ANPP to belowground net primary productivity (BNPP) for both species. This indicated that sheep saliva promotes aboveground compensatory growth and allocation of photosynthate to aboveground for both plant species. Sheep saliva stimulated only tillering of L. chinensis. Regardless of saliva application, clipping significantly decreased BNPP and plant height, but significantly increased the number of branches or tillers for both plant species. The relative growth rates (RGRs) on both species were significantly greater after clipping with saliva compared with control and clipping without saliva treatments. In addition, RGR of the herbaceous species L. chinensis was faster than that of the semi-shrub A. frigida after application of saliva. (c) 2006 Elsevier Ltd. All rights reserved.
关键词	Clipping Inner Mongolia Steppe Net Primary Productivity Relative Growth Rates
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
学科领域	生物科学
关键词[WOS]	INNER-MONGOLIA STEPPE ; POPULATION-DYNAMICS ; GROWTH-RESPONSES ; HERBIVORY ; DEFOLIATION ; TOLERANCE ; COMPENSATION ; REGROWTH ; DEFENSE ; PLANTS
收录类别	SCI
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology ; Environmental Sciences
WOS记录号	WOS:000246064600009
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/1278
专题	中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810008, Peoples R China 2.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 3.Anhui Agr Univ, Resources & Environm Coll, Hefei 230036, Peoples R China 4.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China 5.N Dakota State Univ, Cent Grasslands Res Extens Ctr, Streeter, ND 58483 USA
推荐引用方式 GB/T 7714	Zhang, Z.,Wang, S.-P.,Jiang, G.-M.,et al. Responses of Artemisia frigida Willd. (Compositae) and Leymus chinensis (Trin.) Tzvel. (Poaceae) to sheep saliva[J]. JOURNAL OF ARID ENVIRONMENTS,2007,70(1):111-119.
APA	Zhang, Z.,Wang, S.-P.,Jiang, G.-M.,Patton, B.,&Nyren, P..(2007).Responses of Artemisia frigida Willd. (Compositae) and Leymus chinensis (Trin.) Tzvel. (Poaceae) to sheep saliva.JOURNAL OF ARID ENVIRONMENTS,70(1),111-119.
MLA	Zhang, Z.,et al."Responses of Artemisia frigida Willd. (Compositae) and Leymus chinensis (Trin.) Tzvel. (Poaceae) to sheep saliva".JOURNAL OF ARID ENVIRONMENTS 70.1(2007):111-119.

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