ARBUSCULAR MYCORIRRHIZAL RESPONSE OF FIVE OLIVE (OLEA EUROPAEA L.) INTRODUCED TO AN ARID ZONE IN ALGERIA
This study provides, for the first time, a characterization of the mycorrhizal status of five olive cultivars (Arbequina, Arbosana, Hojiblanca, Picual and Frangivento) introduced in Algeria arid zone. To better understand how these introduced cultivars can adapt to a new environment, their relatio...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Editura Universităţii din Oradea
2024-11-01
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| Series: | Natural Resources and Sustainable Development |
| Subjects: | |
| Online Access: | https://www.nrsdj.com/issues-year-2024-2/arbuscular-mycorirrhizal-response-of-five-olive-olea-europaea-l-introduced-to-an-arid-zone-in-algeria.html |
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| Summary: | This study provides, for the first time, a characterization of the mycorrhizal status of five olive
cultivars (Arbequina, Arbosana, Hojiblanca, Picual and Frangivento) introduced in Algeria arid zone.
To better understand how these introduced cultivars can adapt to a new environment, their relationship
with a native complex of arbuscular mycorrhizal fungi (AMF) was examined in connection with a set
of physicochemical soil parameters. Roots and rhizospheric soil were studied. The study area was
characterized by alkaline and saline soils, a moderate level of organic matter, high levels of total and
active calcium carbonates, low level of available phosphorus and a sandy loamy texture. Our results
show the presence of symbiotic arbuscular endomycorrhizal fungi in the five cultivars. Mycorrhizal
colonization by AMF revealed that the mycorrhizal frequency (F %) in the root systems reached 100
% for both Arbequina and Hojiblanca varieties. The intensity of mycorrhizal colonization (M %) and
the intensity within root fragments (m %) ranged from 3.89 % to 65.96 %, with Hojiblanca showing
the lowest and Arbequina the highest values. The abundance of arbuscules in the root fragments (a %)
varied between 42.22 % in Frangivento and 68.66 % in Arbequina, while the abundance of arbuscular
in the root system (A%) varied from 2.56 to 46.04 % (Hojiblanca and Arbequina respectively). For
mycorrhizal frequency (F%), a One-way ANOVA test showed no significant differences between the
five cultivars, highly significant differences for arbuscule abundance (a%) and very high significant
differences for the M ( %), m ( %) and A ( %). In the rhizospheric soil, 11 species belonging to seven
genera, three families, two orders and one class AMF were morphologically identified: Septoglomus
constrictum, Septoglomus deserticola, Funneliformis mosseae, Funneliformis fasciculatum,
Funneliformis coronatum, Funneliformis geosporum. Rhizophagus sinuosum, Rhizophagus clarus,
Claroideoglomus caledonius Gigaspora rosia and Acaulospora bireticulata. |
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| ISSN: | 2066-6276 2601-5676 |