Record ID No. |
1831 |
Author(s) |
Dreyer B., PerezGilabert M., Olmos E., Honrubia M., Morte A , 2008 |
Affiliation |
University of Murcia, Fac Biol, Dept Biol Vegetal Botanica, Campus Espinardo, E-30100 Murcia, SPAIN |
Title |
Ultrastructural localization of acid phosphatase in arbusculate coils of mycorrhizal Phoenix canariensis roots |
Source. Vol.(no):Page |
Physiologia Plantarum.132(4):503-513p. |
Categories |
Mycorrhiza General |
Subjects |
Biochemistry |
Sub-subjects |
Miscellaneous |
Organism |
n.a. |
Country |
SPAIN, Europe |
Abstracts |
Acid phosphatase (ACP) activity has been detected in roots of mycorrhizal and
non-mycorrhizal Phoenix canariensis. This enzyme was ultrastructurally localized in arbusculate
coils for the first time. This localization was carried out using a cerium-based method, which
minimizes non-specific precipitation. The ACP was localized in inter- and intracellular hyphae,
in the fungal cytoplasm as well as at the interface and the fungal cell wall and the
periarbuscular membrane limiting it. The novel localization of an ACP in the arbuscular
mycorrhizal (AM) interface of arbusculate coils suggests that this enzyme may be involved in the
phosphorus efflux from the mycorrhizal fungus to the host. The results presented in this article
indicate that the role played by ACP in AM symbiosis may be more important than was previously
thought and that arbusculate coils are highly relevant when considering nutrient transfer through
AM symbiosis. |