Hostname: page-component-6bb9c88b65-dwch4 Total loading time: 0 Render date: 2025-07-23T13:53:42.501Z Has data issue: false hasContentIssue false
  • English
  • Français

Ecogeographical variation in the Pleurotus eryngii complex in Israel

Published online by Cambridge University Press:  21 November 2000

D. LEWINSOHN ,
E. NEVO ,
Y. HADAR ,
S. P. WASSER  and
A. BEHARAV
D. LEWINSOHN
Affiliation:
International Center for Cryptogamic Plants and Fungi, Institute of Evolution, University of Haifa, Mount Carmel Haifa 31905, Israel
E. NEVO
Affiliation:
International Center for Cryptogamic Plants and Fungi, Institute of Evolution, University of Haifa, Mount Carmel Haifa 31905, Israel
Y. HADAR
Affiliation:
Department of Plant Pathology and Microbiology, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, Rehovot 76100 Israel. E-mail: dlevin01@study.haifa.ac.il
S. P. WASSER
Affiliation:
International Center for Cryptogamic Plants and Fungi, Institute of Evolution, University of Haifa, Mount Carmel Haifa 31905, Israel
A. BEHARAV
Affiliation:
International Center for Cryptogamic Plants and Fungi, Institute of Evolution, University of Haifa, Mount Carmel Haifa 31905, Israel
Get access

Abstract

The geographical distribution and ecological habitats of the Pleurotus eryngii complex in Israel are described from a study of 60 genotypes from 10 populations. Both MEA and PDA media were suitable for growth of all genotypes at all temperatures tested (4–37 °C). There was a high correlation between a coefficient of growth and the mean colony diameter growth rate. All genotypes reached the maximum growth at 27°. Growth rate at 30° was greater than at 19°. We found highly significant (P < 0.0001) variability among growth rates of Israeli genotypes, indicating ecogeographical differences among populations. The growth rate of 12 European genotypes from the Ukraine and Slovakia was higher than most of the Israeli genotypes when grown at 27° (non-stress conditions), but Israeli genotypes tolerated 37° (stress conditions) better, and recovered faster than European populations when returned to 27°. We conclude that Israeli genotypes are better adapted to hot and dry climates than European genotypes. Based on multiple regression analyses, strong correlations were found between relative humidity and rainfall parameters, but not temperature, of the locations from which Israeli isolates were collected, and their growth rates. This indicates that, paradoxically, relative humidity and rainfall have a stronger effect than temperature on the adaptability of this complex to different environments.

Information

Type
Research Article
Information
Mycological Research , Volume 104 , Issue 10 , October 2000 , pp. 1184 - 1190
Copyright
© The British Mycological Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable