Related Experiment Video
Updated: May 9, 2026

Establishing Fungal Entomopathogens as Endophytes: Towards Endophytic Biological Control
Published on: April 11, 2013
Fungal endophytes enhance wheat heat and drought tolerance in terms of grain yield and second-generation seed
M Hubbard1, J J Germida, V Vujanovic
1Department of Food and Bioproduct Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada.
Aims:
We evaluated the impact of fungal endophyte symbiosis on the growth, ecophysiological and reproductive success of wheat exposed to heat and drought.
Methods And Results:
The resistance of pot-grown wheat to heat or drought stress was measured by quantifying efficiency of photosystem II (Fv /Fm), plant height, average seed weight (ASW), total seed weight (TSW), water-use efficiency (WUE) as well as time to 50% germination and percentage germination of second-generation seeds produced under heat stress, drought stress or well-watered conditions. The endophytic fungi tested increased wheat tolerance for drought and heat. Endophyte SMCD 2206 was the most beneficial, followed by SMCD 2210 and 2215. Surprisingly, second-generation seeds produced by drought-stressed wheat colonized by SMCD 2206, 2210 or 2215 had decreased WUE relative to those produced by endophyte-free, drought-stressed plants. However, these seeds germinated more rapidly than those produced by endophyte-free, stressed parental plants.
Conclusions:
The tested consortium of endophytes has the potential to improve wheat adaptation to heat and drought.
Significance And Impact Of The Study:
The capacity of endophytes to increase wheat tolerance for abiotic stress and to improved germination in endophyte-free second-generation seeds arising from stressed plants could be applicable to agriculture. The mechanisms by which intergenerational endophyte-mediated affects occurs warrant further research.
Related Concept Videos
Plant Breeding and Biotechnology
Microbe-Plant Interactions
Responses to Drought and Flooding
Endospores and Sporulation
Responses to Heat and Cold Stress
Bioreactor Controls-III

