EFFECTS OF POTASSIUM ADDITION AND WATER SUPPLY ON XYLEM EMBOLISM IN ACER TRUNCATUMAND LIGUSTRUM LUCIDUM

doi:10.3773/j.issn.1005-264x.2009.06.021

Abstract

Abstract:

Aims Xylem embolism is a physiological response of tree species to adverse environmental factors, such as water deficit. Potassium plays an important role in plant ability to resist drought. Our objective was to clarify how xylem embolism respond to potassium addition.

Methods Tree species, Acer truncatum andLigustrum lucidum were chosen to study the response of xylem embolism, which was measured as the percentage loss of hydraulic conductivity (PLC), to potassium addition under drought-stressed and well-watered treatments (soil water content of 30%-40% and 70%-80% of field moisture capacity, respectively).

Important findings For both species, PLC was higher at 12:30 than at 6:30 and 18:30, while leaf water potential (WP) showed the opposite trend. Potassium addition raised PLC significantly for both species, and the plants with the highest potassium supply generally had the highest PLC. Potassium addition greatly decreased WP of the plants subjected to water deficit. Between the two species, A. truncatum had higher PLC and lower WP. This study suggests that increase in PLC by potassium-addition may result from potassium’s effect on water potential and from its controls on stomata movement, cell osmosis, etc.

Key words: potassium addition, water control in pot culture, water potential, xylem embolism

HUANG Ju-Ying, YU Hai-Long, ZHANG Shuo-Xin. EFFECTS OF POTASSIUM ADDITION AND WATER SUPPLY ON XYLEM EMBOLISM IN ACER TRUNCATUMAND LIGUSTRUM LUCIDUM[J]. Chin J Plant Ecol, 2009, 33(6): 1199-1207.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.plant-ecology.com/EN/10.3773/j.issn.1005-264x.2009.06.021

https://www.plant-ecology.com/EN/Y2009/V33/I6/1199

Figures/Tables 7

References 28

[1]	An F (安锋), Zhang SX (张硕新) (2005). Studies of roots and shoots vulnerability to xylem embolism in seven woody plants. Acta Ecologica Sinica(生态学报), 25,1928-1933. (in Chinese with English abstract)
[2]	Brodribb TJ, Holbrook NM (2004). Stomatal protection against hydraulic failure: a comparison of coexisting ferns and angiosperms. New Phytologist, 162,663-670.
[3]	Bucci SJ, Scholz FG, Goldstein G, Meinzer FC, Franco AC, Campanello PI, Villalobos-Vega R, Bustamante M, Miralles-Wilhelm F (2006). Nutrient availability constrains the hydraulic architecture and water relations of savannah trees. Plant,Cell and Environment, 29,2153-2167. DOI URL PMID
[4]	Bucci SJ, Scholz FG, Goldstein G, Meinzer FC,Sternberg LDASL (2003). Dynamic changes in hydraulic conductivity in petioles of two savanna tree species: factors and mechanisms contributing to the refilling of embolized vessels. Plant,Cell and Environment, 26,1633-1645.
[5]	Culter JM, Rains DW, Loomis RS (1977). Role of changes in solute concentration in maintaining favorable water balance in field-grown cotton. Agronomy Journal, 69,773-779.
[6]	Domec JC, Gartner BL (2003). Relationship between growth rates and xylem hydraulic characteristics in young, mature and old-growth ponderosa pine trees. Plant,Cell and Environment, 26,471-483.
[7]	Huang JY (黄菊莹), Cai J (蔡靖), Jiang ZM (姜在民), Zhang SX (张硕新), Yu HL (余海龙) (2008). Response of xylem embolism to phosphorus addition under different water regimes in two tree species. Journal of Plant Ecology (Chinese Version) (植物生态学报), 32,183-188. (in Chinese with English abstract)
[8]	Huang JY (黄菊莹), Zhang SX (张硕新), Feng HJ (冯慧娟) (2005). Relationships between xylem embolism and nitrogen fertilization in four woody plants. Journal of Northwest Forestry University (西北林学院学报), 20(3),36-39. (in Chinese with English abstract)
[9]	Kikuta SB, Lo Gullo MA, Nardini A, Richter H, Salleo S (1997). Ultrasound acoustic emissions from dehydrating leaves of deciduous and evergreen trees. Plant,Cell and Environment, 20,1381-1390.
[10]	Li YY (李秧秧) (1995). Effect of potassium phytosynthetic induction of leaves under drought condition. Plant Physiology Communications(植物生理学通讯), 31,178-181. (in Chinese)
[11]	Liu FH, Nancy L (2002). Effect of soil K supply and terminal drought on seed yield and pod set of narrow-leafed lupin. Journal of Yunnan University (Natural Sciences) (云南大学学报(自然科学版)), 24,56-61.
[12]	Liu LK (刘立科) (2000). Relationship Between Xylem Embolism Refilling Characteristics and Phytohormone in Woody Plants(木本植物木质部栓塞恢复特性与植物激素关系的研究). Master dissertation, Northwest Agriculture and Forestry University, Yangling, Shaanxi. (in Chinese with English abstract)
[13]	Liu X (刘晓真) (2008). Effect of Fertilization on Physiological Indices and Xylem Embolism in Four Tree Species(施肥对四个树种生理指标及木质部栓塞的影响). Master dissertation, Northwest Agriculture and Forestry University, Yangling, Shaanxi. (in Chinese with English abstract)
[14]	Lo Gullo MA, Salleo S (1988). Different strategies of drought resistance in three Mediterranean sclerophyllous trees growing in the same environmental conditions. New Phytologist, 108,267-276.
[15]	McCully ME (1999). Root xylem embolisms and refilling.Relation to water potentials of soil, roots and leaves, and osmotic potential of root xylem sap. Plant Physiology, 119,1001-1008. URL PMID
[16]	McCully ME, Huang CX, Ling LEC (1998). Daily embolism and refilling of xylem vessels in roots of field-grown maize. New Phytologist, 138,327-342.
[17]	Meinzer FC, Clearwater J, Goldstein G (2001). Water transport in trees: current perspectives, new insights and some controversies. Environmental and Experimental Botany, 45,239-262. DOI URL PMID
[18]	Melcher PJ, Goldstein G, Meinzer FC, Yount DE, Jones TJ, Holbrook NM, Huang CX (2001). Water relations of coastal and estuarine Rhizophora mangle: xylem pressure potential and dynamics of embolism formation and repair. Oecologia, l26,l82-l92.
[19]	Mengel K, Kirkby EA (1980). Potassium in crop production. Advances in Agronomy, 33,59-110.
[20]	Oren R, Sperry JS, Katul GG, Pataki DE, Ewers BE, Phillips N, Schafer KVR (1999). Survey and synthesis of intra- and interspecific variation in stomatal sensitivity to vapour pressure deficit. Plant,Cell and Environment, 22,1515-1526.
[21]	Sperry JS, Donnelly JR, Tyree MT (1988). A method for measuring hydraulic conductivity and embolism in xylem. Plant,Cell and Environment, 11,35-40.
[22]	Sperry JS, Tyree MT (1990). Water stress-induced xylem embolism in three species of conifers. Plant,Cell and Environment, 13,427-436.
[23]	Tan Y (谭勇), Liang ZS (梁宗锁), Wang WL (王渭玲), Duan QM (段绮梅) (2007). Effect of nitrogen, phosphorus and potassium stress on root vigor and hydraulic conductance of Astragalus membranaceus seedling. Chinese Journal of Eco-Agriculture (中国生态农业学报), 15(6),69-72. (in Chinese with English abstract)
[24]	Tyree MT, Alexander J, Machado J (1992). Loss of hydraulic conductivity due to water stress in intact juveniles of Quercus rubra and Populus deltoides. Tree Physiology, 10,411-415. DOI URL PMID
[25]	Tyree MT, Ewers FW (1991). The hydraulic architecture of trees and other woody plants. New Phytologist, 119,345-360.
[26]	Wang W (王玮), Zou Q (邹琦), Peng T (彭涛), Li H (李涵) (1996). Dynamics of potassium in wheat under water soil drought. Journal of Shandong Agricultural University(山东农业大学学报), 27,199-202. (in Chinese)
[27]	Yang XG (杨鑫光), Fu H (傅华), Zhang HR (张洪荣), Zhao JD (赵纪东) (2006). Effect of soil water stress on leaf water potential and biomass of Zygophyllum xanthoxylum during seedling stage. Acta Prataculturae Sinica (草业学报), 15(2),37-41. (in Chinese with English abstract)
[28]	Zhang SX (张硕新), Shen WJ (申卫军), Zhang YY (张远迎), Zhou XX (周新霞) (1997). The vulnerability of xylem embolism in twigs of some drought-resistant trees species. Journal of Northwest Forestry University (西北林学院学报), 12(2),1-6. (in Chinese with English abstract)

	K₂SO₄(46% K)
添加梯度 K addition gradient	0	30	45	60
纯K含量 K content	0	13.8	18.4	27.6
简写 Abbreviation	K0	K30	K45	K60

	K₂SO₄(46% K)
添加梯度 K addition gradient	0	30	45	60
纯K含量 K content	0	13.8	18.4	27.6
简写 Abbreviation	K0	K30	K45	K60

树种 Species	来源 Source	df	F	p
元宝枫 Acer truncatum	水分处理 Water regime	1	2.304	0.139
	K素添加梯度 K addition gradient	3	6.437	0.002
	水分处理×K素添加梯度 Water regime×K addition gradient	3	3.822	0.019
女贞 Ligustrum lucidum	水分处理 Water regime	1	3.395	0.075
	K素添加梯度 K addition gradient	3	4.145	0.014
	水分处理×K素添加梯度 Water regime×K addition gradient	3	0.393	0.759

树种 Species	来源 Source	df	F	p
元宝枫 Acer truncatum	水分处理 Water regime	1	2.304	0.139
	K素添加梯度 K addition gradient	3	6.437	0.002
	水分处理×K素添加梯度 Water regime×K addition gradient	3	3.822	0.019
女贞 Ligustrum lucidum	水分处理 Water regime	1	3.395	0.075
	K素添加梯度 K addition gradient	3	4.145	0.014
	水分处理×K素添加梯度 Water regime×K addition gradient	3	0.393	0.759

树种 Species	来源 Source	df	F	p
元宝枫 Acer truncatum	水分处理 Water regime	1	3.205	0.083
	K素添加梯度 K addition gradient	3	3.354	0.031
	水分处理×K素添加梯度 Water regime×K addition gradient	3	0.545	0.655
女贞 Ligustrum lucidum	水分处理 Water regime	1	3.864	0.058
	K素添加梯度 K addition gradient	3	0.762	0.524
	水分处理×K素添加梯度 Water regime×K addition gradient	3	1.124	0.354