Inoculation with selected indigenous mycorrhizal complex improves Ceratonia siliqua’s growth and response to drought stress

Jadrane, Issam; Alfeddy, Mohamed Najib; Dounas, Hanane; Kouisni, Lamfeddal; Aziz, Faissal; Ouahmane, Lahcen

doi:10.1016/j.sjbs.2020.11.018

Cited by 19 publications

(17 citation statements)

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“…Some AMF species are more efficient on the host plant than others, given the existence of genetic and/or physiological factors between the fungal symbionts and their hosts (Coutinho et al 2019;Klironomos 2003;Van der Heijden et al 1998). These results corroborate other studies in the Mediterranean region on other forest species that had shown high mycorrhizal colonization rates (Jadrane et al 2021;Kavroulakis et al 2020;Manaut et al 2015;Ouahmane et al 2007a). A significant enhancement of the growth parameters of the Argan seedlings in their early growth stage was observed for the different fungal inocula.…”

Section: Discussionsupporting

confidence: 91%

“…Also, the mycorrhizal fungi are known by their phosphatase enzymatic activities and by their influence on the physicochemical properties of the soil in the sense of improving the solubilization of phosphorus and its availability to the host plant. Several studies have focused on the role of mycorrhizae in plant nutrition in semi-arid area ( Alguacil et al 2005;Barea et al 2005;Jadrane et al 2021;Manaut et al 2015;Neumann and George 2004;Ratti et al 2010). Additionally, it is noteworthy to mention that for the A9 and A7 complexes, there was a significant increase especially for Ca and K elements.…”

Section: Discussionmentioning

confidence: 99%

“…Soil microorganisms are responsible for essential ecosystem functions such as biogeochemical cycling of nutrients, maintaining plant health and soil quality (Avis et al 2008;Barea et al 2005;Fierer et al 2021;Richardson et al 2009;Singh and Gupta 2018). Among these soil microorganisms, mycorrhizae are symbiotic associations between soil fungi and roots of most of vascular plants, where both partners exchange nutrients and energy (Jadrane et al 2021). It is now universally recognized that mycorrhizal symbioses are fundamental for good plant health, nutrient uptake, and soil quality.…”

Section: Introductionmentioning

confidence: 99%

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Application of Arbuscular Mycorrhizal Fungi Isolates from Semi-arid Mediterranean Ecosystems as Biofertilizers in Argan Tree Development

Outamamat

Dounas

Rachid

et al. 2021

J Soil Sci Plant Nutr

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In semi-arid Mediterranean ecosystems, biotic and abiotic constraints have led to intense forest destruction and ecosystem deterioration and particularly to limitation in the production of Argan tree. Reforestation is thus more than ever a major challenge and an absolute necessity. The use of arbuscular mycorrhizal fungi (AMF) is of great importance in the processes of sustainable regeneration of the vegetation cover, given their roles in the improvement of plant growth and in the protection of soils. In the current study, Argan seedlings were inoculated with five arbuscular mycorrhizal fungi complexes and six arbuscular mycorrhizal fungi monospecific isolates. Growth, nutrition, photosynthetic pigments, and mycorrhizal colonization were under study. The soil samples were obtained from different ecosystems. Trap culture with Maize (Zea mays L.) was used for the production of mycorrhizal inoculum directly for complexes. Monospecific isolates were then produced from spore suspension using the technique of micropipette tips. Germinated seeds of Argan tree were inoculated separately with eleven fungal inoculants, under nursery conditions. Eight-month aged seedlings were compared for their growth and nutritional status. All the considered AMF inoculants stimulated significantly the growth of Argan seedlings; an increase in plant height between 33 and 70% was recorded. The aerial dry weight showed an increase of 62 to 124%, and the root dry weight showed an increase of 24 to 86% compared to the control. Similarly, the mineral contents in inoculated seedlings were significantly increased compared to the control non-inoculated seedlings. The analysis of the chlorophyll contents in leaves showed a significant improvement in inoculated seedlings. In conclusion, this first use of arbuscular mycorrhizal fungi isolates had shown that either complexes or monospecific isolates could improve significantly growth, mineral nutrition, and photosynthesis of Argan seedlings under nursery conditions. Hence, the use of inoculation with suitable consortium from these isolates is a recommended eco-friendly strategy for the restoration of degraded Argan ecosystems.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Application of Arbuscular Mycorrhizal Fungi Isolates from Semi-arid Mediterranean Ecosystems as Biofertilizers in Argan Tree Development

Outamamat

Dounas

Rachid

et al. 2021

J Soil Sci Plant Nutr

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“…In the current research work, enzyme assay was studied according to optimized protocols reported in earlier work [23]. To achieve this goal, 0.5 g of fresh plant leaves were carefully frozen in liquid nitrogen before being cut and maintained at 4 • C in 5 mL solution constituted of 0.1 g polyvinylpolypyrrolidone (PVPP), 0.1M potassium phosphate buffer (pH 7.0) as well as 0.1 mmol ethylenediaminetetraacetic acids (EDTA) (Sigma-Aldrich Schnelldorf, Germany).…”

Section: Antioxidant Enzyme Assaymentioning

confidence: 99%

“…In adverse environmental conditions, the AMF contributed to the increasing tolerance to abiotic and biotic stresses by their osmotic regulation and alleviation of oxidative stress [17,18,20]. Mechanisms of mycorrhizal plant tolerance to abiotic stresses, for instance, salinity, drought, as well as pollution, have critically been revised elsewhere [13,[21][22][23]. Despite the ubiquity of AMF in different harsh environmental conditions and their promising findings in protecting plants from stresses, few works have been undertaken to investigate the potential effects of AMF in fighting against salt stress in date palm [11,24,25].…”

Section: Introductionmentioning

confidence: 99%

Application of Native or Exotic Arbuscular Mycorrhizal Fungi Complexes and Monospecific Isolates from Saline Semi-Arid Mediterranean Ecosystems Improved Phoenix dactylifera’s Growth and Mitigated Salt Stress Negative Effects

Outamamat

Bourhia

Dounas

et al. 2021

Plants

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The date, the palm tree (Phoenix dactylifera L.) is an important component of arid and semi-arid Mediterranean ecosystems, particularly in Morocco where it plays a considerable socio-economic and ecological role. This species is largely affected by desertification, global warming, and anthropic pressure. Salinity is a very worrying problem that negatively affects the growth and the physiological and biochemical activities of the date palm. In these arid zones, the main challenge is to develop new environmentally friendly technologies that improve crop tolerance to abiotic restraints including salinity. In this sense, Arbuscular mycorrhizal fungi (AMF) have received much attention due to their capability in promoting plant growth and tolerance to abiotic and biotic stresses. It is thus fitting that the current research work was undertaken to evaluate and compare the effects of native AMF on the development of the growth and tolerance of date palm to salt stress along with testing their role as biofertilizers. To achieve this goal, two complexes and two monospecific isolates of native and non-native AMF were used to inoculate date palm seedlings under saline stress (0 g·L−1 Na Cl, 10 g·L−1, and 20 g·L−1 Na Cl). The obtained results showed that salinity drastically affected the physiological parameters and growth of date palm seedlings, whilst the application of selected AMF significantly improved growth parameters and promoted the activities of antioxidant enzymes as a protective strategy. Inoculation with non-native AMF complex and monospecific isolates showed higher responses for all analyzed parameters when compared with the native complex and isolate. It therefore becomes necessary to glamorize the fungal communities associated with date palm for their use in the inoculation of Phoenix dactylifera L. seedlings.

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Arbuscular mycorrhizal fungi improve the growth and drought tolerance of Cinnamomum migao by enhancing physio‐biochemical responses

Yan

Xuefeng

et al. 2022

Ecology and Evolution

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Drought is the main limiting factor for plant growth in karst areas with a fragile ecological environment. Cinnamomum migao H.W. Li is an endemic medicinal woody plant present in the karst areas of southwestern China, and it is endangered due to poor drought tolerance. Arbuscular mycorrhizal fungi (AMF) are known to enhance the drought tolerance of plants. However, few studies have examined the contribution of AMF in improving the drought tolerance of C. migao seedlings. Therefore, we conducted a series of experiments to determine whether a single inoculation and coinoculation of AMF (Claroideoglomus lamellosum and Claroideoglomus etunicatum) enhanced the drought tolerance of C. migao. Furthermore, we compared the effects of single inoculation and coinoculation with different inoculum sizes (20, 40, 60, and 100 g; four replicates per treatment) on mycorrhizal colonization rate, plant growth, photosynthetic parameters, antioxidant enzyme activity, and malondialdehyde (MDA) and osmoregulatory substance contents. The results showed that compared with nonmycorrhizal plants, AMF colonization significantly improved plant growing status; net photosynthetic rate; superoxide dismutase, catalase, and peroxidase activities; and soluble sugar, soluble protein, and proline contents. Furthermore, AMF colonization increased relative water content and reduced MDA content in cells. These combined cumulative effects of AMF symbiosis ultimately enhanced the drought tolerance of seedlings and were closely related to the inoculum size. With an increase in inoculum size, the growth rate and drought tolerance of plants first increased and then decreased. The damage caused by drought stress could be reduced by inoculating 40–60 g of AMF, and the effect of coinoculation was significantly better than that of single inoculation at 60 g of AMF, while the effect was opposite at 40 g of AMF. Additionally, the interaction between AMF and inoculum sizes had a significant effect on drought tolerance. In conclusion, the inoculation of the AMF (Cl. lamellosum and Cl. etunicatum) improved photosynthesis, activated antioxidant enzymes, regulated cell osmotic state, and enhanced the drought tolerance of C. migao, enabling its growth in fragile ecological environments.

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Inoculation with selected indigenous mycorrhizal complex improves Ceratonia siliqua’s growth and response to drought stress

Cited by 19 publications

References 50 publications

Application of Arbuscular Mycorrhizal Fungi Isolates from Semi-arid Mediterranean Ecosystems as Biofertilizers in Argan Tree Development

Application of Arbuscular Mycorrhizal Fungi Isolates from Semi-arid Mediterranean Ecosystems as Biofertilizers in Argan Tree Development

Application of Native or Exotic Arbuscular Mycorrhizal Fungi Complexes and Monospecific Isolates from Saline Semi-Arid Mediterranean Ecosystems Improved Phoenix dactylifera’s Growth and Mitigated Salt Stress Negative Effects

Arbuscular mycorrhizal fungi improve the growth and drought tolerance of Cinnamomum migao by enhancing physio‐biochemical responses

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