盐胁迫下丛枝菌根真菌对玉米水分和养分状况的影响

应用生态学报 ›› 2000, Vol. ›› Issue (4): 595-598.

盐胁迫下丛枝菌根真菌对玉米水分和养分状况的影响

冯固¹, 李晓林², 张福锁², 李生秀³

1. 新疆农业科学院核技术生物技术研究所, 乌鲁木齐830000;
2. 中国农业大学植物营养系, 北京100094;
3. 西北农业大学资源与环境科学系, 杨陵712100

收稿日期:1998-04-23 修回日期:1998-11-27 出版日期:2000-07-25
通讯作者: 冯固,男,1962年生,博士,副研究员,主要从事植物与微生物相互作用、环境生物治理、作物营养等方面的研究.目前在中国农业大学资源与环境学院从事博士后研究.发表论文多篇.
基金资助:
国家自然科学基金资助项目(39790100和49961005)

Effect of AM fungi on water and nutrition status of corn plants under salt stress

FENG Gu¹, LI Xiaolin², ZHANG Fusuo², LI Shengxiu³

1. Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830000;
2. China Agricultural University, Beijing 100094;
3. Northwest Agricultural University, Yangling 712100

Received:1998-04-23 Revised:1998-11-27 Online:2000-07-25

摘要/Abstract

摘要： 在NaCl胁迫下无论接种AM真菌与否玉米植株生物产量均减少,但不接种处理的减少幅度比接种处理的高10个百分点左右.盐胁迫下接种AM真菌的玉米根系和地上部的干重、叶片水势均高于不接种处理、叶片脯氨酸含量低于不接种处理.在盐胁迫下真菌菌丝对玉米植株磷营养的贡献由45.3%降为42.6%,AM真菌对植株生长的效应反而由30.9%提高到63.5%,说明AM真菌提高玉米耐盐性的机理与改善植物的水分状况和P营养状况都有关系.试验同时还发现无论有无盐胁迫,接种AM真菌的玉米植株根系累积P量与地上部累积P量之比值均高于不接种的,即AM真菌侵染改变了P在植物体内的分配规律,这一特征对提高植物耐盐性是有利的.

Abstract: Under NaCl stress,the dry matter production of corn plants inoculated with or without arbuscular mycorrhizal (AM) fungus (Glomus mosseae) was decreased,but the decrement for non-mycorrhizal plants was 10% higher than that for mycorrhizal ones.Under salt stress condition,the dry weights of root system and aboveground part of mycorrhizal corn and its leaf water potential were higher than those of non-mycorrhizal corn, while the proline content of mycorrhizal corn was less than that of non-mycorrhizal corn.The contribution of hypha to P uptake of plants decreased from 45.3% to 42.6%,while the effect of AM fungi on plant growth increased from 30.9% to 63.5% under salt stress condition.The above-mentioned results indicated that the mechanism that AM fungi enhance the salt-resistance of corn is related with the improvements of water and P nutrition conditions.Meanwhile,it was found whether under salt stress or not,the ratio of P accumulation of root system to aboveground part of mycorrhizal corn was higher than that of non-mycorrhizal corn,indicating that the infection of AM fungi changed the P distribution pattern in plant bodies,which is beneficial to increase the salt-resistance of plants.

冯固, 李晓林, 张福锁, 李生秀. 盐胁迫下丛枝菌根真菌对玉米水分和养分状况的影响[J]. 应用生态学报, 2000, (4): 595-598.

FENG Gu, LI Xiaolin, ZHANG Fusuo, LI Shengxiu. Effect of AM fungi on water and nutrition status of corn plants under salt stress[J]. Chinese Journal of Applied Ecology, 2000, (4): 595-598.

参考文献

1. Amijee F,Stribley DP and Tinker PB. 1993. The development of endomycorrhizal root systems Ⅷ. Effects of soil phosphorus and fungal colonization on the concentration of soluble carbohydrates in roots. New Phytol,123:297～306
2. Auge RM,Foster JG, Loescherand WH,and Stodola JW. 1992. Symplastic mobility of free amino acid and sugars in Rosa root with regard to VA mycorrhizae and drought. Symbiosis,12:1～17
3. Awad AS,Edwards DG and Campbell LC. 1990. Phosphorus enhancement of salt tolerance of tomato. Crop Sci,30:123～128
4. Bago B, Donaire JP and Azcon-Aguilar C. 1996. Biochemical characterization of membranes in arbuscular mycorrhiza:Fatty acid and analysis. In: Azcon-Aguilar C,Barea JM eds. Mycorrhizas in Integrated Systems from Genes to Plant Development. Proceedings of 4th European Symposium on Mycorrhizas, ECSC-EC-EAEC, Brusel Luxembourg.
5. Bernstein LEF and Clark RA. 1974. Interactive effects of salinity and fertility on yield of grains and vegetables. Agron J,66:412～421
6. Copeman RH, Martin CA and Stutz JC. 1996. Tomato growth in response to salinity and mycorrhizal fungi from saline or nonsaline soil. HortScience,31:341～344
7. Druge U and Schonbeck F. 1992. Effect of Vesicular-arbuscular mycorrhizal infection on transpiration,photosynthesis and growth of flax (Linum usitissimum L.) in relation to cytokinin levels. J Plant Physiol,141:40～48
8. Duke ER,Johnson CR and Koch KE. 1986. Accumulation of phosphorus,dry matter and betaine during NaCl stress of slip-root citrus seedlings colonized with vesicular-arbuscular mycorrhizal fungi on zero,one or two halves. New Photol,104:583～590
9. George E,Marschner H and Jakobsen I. 1995. Role of arbuscular mycorrhizal fungi in uptake of phosphorus and nitrogen from soil. Critical Rev Biotechnol,15(3/4):257～270
10. Giovannett M and Mosse B. 1980. An evaluation of techniques for measuring vascular-arbuscular mycorrhizal infection in root. New Phytol,84:489～500
11. Hassan NAK,Drew JV,Knudsen D and Olsen R. 1970b. Influence of soil salinity on dry matter and uptake and distribution of nutrient in barley and corn Ⅱ. Corn. Agron J,62:46～48
12. Hirrel MC and Gerdemann JW. 1980. Improved growth of onion and bell pepper in saline soils by two vesicular-arbuscular mycorrhizal fungi. Soil Sci Soc Am J, 44:654～655
13. Levitt J. 1980. Response of Plant to Environmental Stress. 2nd ed. New York:Academic Press.
14. Li Xiao-Lin,George E and Marschner H. 1991c. Extension of the phosphorus depletion zone in VA-mycorrhizal white clover in a calcareous soil. Plant Soil,136:41～48
15. Pacovsk RS. 1989. Carbonhydrate, protein and amino acid status of Glycine-Glomus-Bradyrihizobium symbioses. Physiol Plant,75:346～354
16. Pan R-Zh(潘瑞炽) and Dong Y-D(董愚得)eds. 1995. Plant physiology(3rd ed.). Beijing:Higher Education Press. 6～28(in Chinese)
17. Poss JA,Pond E, Menge JA and Jarrell WM, 1985. Effect of salinity on mycorrhizal onion and tomato in soil with and without additional phosphate. Plant and Soil,88:307～319
18. Rosendahl CN and Rosendahl S. 1991. Infuencce of vesicular-arbuscular mycorrhizal fungi(Glomus spp.) onion response of cucumber (Cucumis sativus) to salt stress. Environ Exp Bot,31:313～318
19. Ruiz-Lozano JM and Azcon R. 1995. Hyphal contribution to water uptake in mycorrhizal plant as affected by the fungial species and water status. Physiol Plantarum,95:472～478
20. Ruiz-Lozano JM,Azcon R and Gomez M. 1996. Alleviation of salt stress by arbuscular-mycorrhizal Glomus species in Lactuca sativa plants. Physiol Plantarum,98:767～772
21. Sanchez-Diaz M. 1996. Survival of arbuscular mycorrhizal plants in drying soil. In:Azcon Aguilar C,Barea JM eds. Mycorrhizas in Integrated Systems from Genes to Plant Development. Proceedings of 4th European Symposium on Mycorrhizas, ECSC-EC-EAEC, Brusel Luxembourg. pp407～412
22. Shen H-J(沈惠娟),Liang Ch-Y(梁成喜) and Li M-Zh(李梅枝). 1993. The improvement of salt tolerance of Black locust seedlings after seed soaked in multi-effect triazole. Acta Bot Sin(植物学报),35:606～610(in Chinese)
23. Smith SE and Ginainazzi-Pearson V. 1988. Physiological interaction between symbionts in vesicular-arbuscular mycorrhizal plants. Ann Rev Physiol Plant Mol Biol,39:221～224
24. Tang Zh-Ch(汤章城). 1992. The adaptive mechanism of plant to osmotic and waterlogged stress. In:Yu Sh-W(余叔文)eds. Plant Physiology and Molecular Biology. Beijing:Science Press. 404～416(in Chinese)
25. Wang H-G(汪洪钢),Wu G-Y(吴观以) and Li H-Q(李慧荃). 1989. Effect of Vesicular-arbuscular mycorrhiza on the growth of Phaseolus aureus and its water use. Acta Pedol Sin(土壤学报),26(4):394～400(in Chinese)
26. Zhao K-F(赵可夫). 1993. Saline Tolerance Physiology of Plant. Beijing:China Scientific and Technolgy Press. (in Chinese)