Appropriate controls for vesicular–arbuscular mycorrhiza research

New Phytologist - Tập 111 Số 1 - Trang 35-44 - 1989
Roger T. Koide1, Mingguang Li1,2
1Department of Biology, The Pennsylvania State University, University Park, PA 16802 USA
2Zhongshan (SunYatsen) University, Department of Biology, Guangzhou, People's Republic of China.

Tóm tắt

SUMMARYSunflower (Helianthus animus L.) and mustard (Brassica hirta Moench.) plants were grown in autoclaved soil to which was added various components of soil inoculum. Use of inocula containing mycorrhizal propagules ultimately resulted in growth promotions which were related to improved phosphorus nutrition. Inoculation with soil containing mycorrhizal propagules caused an initial growth depression in comparison with plants receiving no inoculation, but inoculation with washed spores did not. For several reasons, the growth depression caused by inoculation with soil was not attributable to mycorrhizal infection. First, the growth depression was evident before mycorrhizal infections had become established. Second, the growth depression was also evident when either soil or soil sievings, both lacking mycorrhizal propagules, were used. Third, similar growth depressions were observed in mustard. The results suggest that careful selection of appropriate controls for mycorrhizal plants must be made, particularly if the emphasis is on early phases of plant growth. Use of non‐sterile soil reduced the extent of mycorrhizal infection.

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Tài liệu tham khảo

10.1111/j.1469-8137.1984.tb04133.x

10.1007/BF02370892

Bagyaraj D. J., 1984, VA Mycorrhiza, 131

10.1016/B978-0-444-41638-4.50009-1

10.1111/j.1469-8137.1988.tb03698.x

10.1094/Phyto-72-889

10.1071/AR9660633

10.1104/pp.86.4.1292

10.1139/b88-112

10.1126/science.140.3572.1220

Cooper R. M., 1984, VA Mycorrhiza, 155

Dehne H. W., 1982, Interaction between vesicular‐arbuscular mycorrhizal fungi and plant pathogens, Phytopathology, 72, 1115

10.1146/annurev.py.06.090168.002145

10.1080/00288233.1978.10427441

Hepper C. M., 1984, VA Mycorrhiza, 95

10.1139/b86-162

Hetuick B. A., 1987, Mycorrhizae in the Next Decade, Practical Applications and Research Priorities, Seventh North American Conference on Mycorrhizae, 200

Jensen W. A., 1962, Botanical Histochemistry

10.1094/Phyto-71-1020

10.1111/j.1469-8137.1985.tb03672.x

Koide R. T. Li M. Lewis J.&Irby C.(1988).Role of mycorrhizal infection in the growth and reproduction of wildVS.cultivated plants. I. Wildvs.cultivated oats.Oecologia.

10.1111/j.1469-8137.1987.tb04891.x

Machlis L., 1956, Plants in Action

10.1111/j.1469-8137.1981.tb03206.x

Menge J. A., 1984, VA Mycorrhiza, 187

10.1016/0038-0717(86)90025-8

10.1094/Phyto-76-688

Munz P. A., 1959, A California Flora

10.1007/BF01267807

10.1111/j.1469-8137.1977.tb02186.x

10.1007/BF02374781

10.1007/BF01347967

10.1016/S0007-1536(88)80189-X

10.1111/j.1469-8137.1981.tb01726.x

10.1111/j.1469-8137.1981.tb01727.x

STSC, 1987, Statgraphics Statistical Graphics System

10.1016/0038-0717(84)90091-9

10.1111/j.1365-3040.1981.tb02118.x

10.2136/sssaj1965.03615995002900060025x

10.2307/3807630

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New Phytologist

Tập 111 Số 1

35-44

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