Further evidence from the effect of fungi on breaking Opuntia seed dormancy

Recently, we found that fungi are involved in breaking seed dormancy of Opuntia streptacantha, and that the effect of fungi on seeds is species-specific. However, the effect of fungi on seed germination from other Opuntia spp has not been evaluated. Thus, we evaluated the effect of four fungal speci...

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Bibliographic Details
Published in:Plant signaling & behavior 2010-10, Vol.5 (10), p.1229-1230
Main Authors: Delgado-Sánchez, Pablo, Ortega-Amaro, María Azucena, Rodríguez-Hernández, Aída Araceli, Jiménez-Bremont, Juan Francisco, Flores, Joel
Format: Article
Language:English
Subjects:
Addendum
Binding
Biology
Bioscience
Calcium
Cancer
Cell
Cycle
fungi
Fungi - physiology
Landes
Opuntia - growth & development
Opuntia - microbiology
Opuntia - physiology
Opuntia leucotricha
Organogenesis
Penicillium chrysogenum
Phoma
Plant Dormancy - physiology
Proteins
seed dormancy
seed germination
seeds
Seeds - growth & development
Seeds - microbiology
Species Specificity
Trichoderma harzianum
Trichoderma koningii
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Summary:Recently, we found that fungi are involved in breaking seed dormancy of Opuntia streptacantha, and that the effect of fungi on seeds is species-specific. However, the effect of fungi on seed germination from other Opuntia spp has not been evaluated. Thus, we evaluated the effect of four fungal species (Penicillium chrysogenum, Phoma sp., Trichoderma harzianum, Trichoderma koningii) on the germination of Opuntia leucotricha, an abundant species in the Chihuahuan Desert, Mexico. We found that seeds inoculated with the four fungal species had higher germination than control seeds. Trichoderma spp. were the most effective. Our results strongly indicate that fungi are involved in breaking seed dormancy of O. leucotricha. Thus, we suggest that these fungi could promote seed germination from other Opuntia species.
ISSN:1559-2324
1559-2316
1559-2324
DOI:10.4161/psb.5.10.12835