Photosynthetic acclimation to long-term high temperature and soil drought stress in two spruce species (Picea crassifolia and P-wilsonii) used for afforestation

doi:10.1007/s11676-017-0468-6

NWIPB OpenIR

	Photosynthetic acclimation to long-term high temperature and soil drought stress in two spruce species (Picea crassifolia and P-wilsonii) used for afforestation
	Zhang, Xiaowei 1,2; Chen, Litong 1,3; Wang, Jingru 1; Wang, Minghao 1; Yang, Shuli 4; Zhao, Changming 1
	2018-03-01
发表期刊	JOURNAL OF FORESTRY RESEARCH
卷号	29 期号:2 页码:363-372
文章类型	Article
摘要	Picea crassifolia and P. wilsonii, commonly used for afforestation in northern China, are increasingly likely to be subjected to high temperatures and soil drought stress as a result of global warming. However, little is known about the effects of these stresses on foliar photosynthesis in the two species. To investigate how photosynthetic characteristics and sensitivity respond to prolonged high temperatures and soil drought, foliar gas exchange and other closely related parameters were recorded from four-year-old seedlings of both species. Seedlings were grown under two temperature treatments (25/15 and 35/25 A degrees C) and four soil water regimes [80, 60, 40 and 20% of maximum field capacity (FC)] for 4 months. Although all treatments significantly reduced photosynthetic rates (P (n)) of both species, P. crassifolia exhibited greater photosynthetic acclimation than P. wilsonii. Differences in photosynthetic acclimation were mainly related to variations in stomatal conductance (Cond) and the maximum quantum yield of PSII (F (v)/F (m)) between treatments. Indeed, higher Cond and F (v)/F (m) in all treatments were shown for P. crassifolia than for P. wilsonii. Moreover, photosynthesis in P. crassifolia exhibited inherently lower temperature sensitivities (broader span for the temperature response curves; lower b) and higher thermostability (invariable b between treatments). Further, severe drought stress (20% FC) limited the survival of P. wilsonii. Our results indicate that P. wilsonii is more susceptible to high temperatures and soil drought stress. Planting P. crassifolia would be more expected to survive these conditions and hence be of greater benefit to forest stability if predicted increases in drought and temperature in northern China occur.
关键词	Acclimation Photosynthesis Drought High Temperature Picea Crassifolia Picea Wilsonii
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1007/s11676-017-0468-6
关键词[WOS]	STOMATAL CONDUCTANCE ; THERMAL-ACCLIMATION ; NET PHOTOSYNTHESIS ; HIGHER-PLANTS ; C-3 PLANTS ; RESPONSES ; RESPIRATION ; CLIMATE ; CO2 ; LIMITATIONS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(31370603 ; Fundamental Research Funds for the Central Universities(lzujbky-2016-ct10) ; 31170571 ; 31522013)
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000425012700011
引用统计	被引频次：16[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/363003/13325
专题	中国科学院西北高原生物研究所
作者单位	1.Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China 2.Gansu Agr Univ, Coll Forestry Sci, Lanzhou 730070, Gansu, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China 4.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaowei,Chen, Litong,Wang, Jingru,et al. Photosynthetic acclimation to long-term high temperature and soil drought stress in two spruce species (Picea crassifolia and P-wilsonii) used for afforestation[J]. JOURNAL OF FORESTRY RESEARCH,2018,29(2):363-372.
APA	Zhang, Xiaowei,Chen, Litong,Wang, Jingru,Wang, Minghao,Yang, Shuli,&Zhao, Changming.(2018).Photosynthetic acclimation to long-term high temperature and soil drought stress in two spruce species (Picea crassifolia and P-wilsonii) used for afforestation.JOURNAL OF FORESTRY RESEARCH,29(2),363-372.
MLA	Zhang, Xiaowei,et al."Photosynthetic acclimation to long-term high temperature and soil drought stress in two spruce species (Picea crassifolia and P-wilsonii) used for afforestation".JOURNAL OF FORESTRY RESEARCH 29.2(2018):363-372.