Effects of arbuscular mycorrhizal inoculation on growth performance of  Piper longum L. (Piperaceae) under sterilized soil conditions

Soursop (Annona muricata L.) is increasingly planted in Malaysia for its agronomical importance as a multipurpose plant with medicinal and health benefits. However, there is limited information on soursop cultivation in Malaysia. Soursop can be inoculated with arbuscular mycorrhizal fungi (AMF) as a sustainable approach for successful seedlings growth before transplanting to field. As a beneficial symbiotic soil microorganism, AMF has been known as biofertilizer which can improve soil conditions and plant growth. Following the need to understand the soil management using soil beneficial microorganisms for soursop cultivation, this experiment aimed to determine the effects of AMF and biochar on the growth of soursop seedlings. The polybag experiment was conducted under glasshouse conditions at Farm 15, Faculty of Agriculture, UPM Serdang, Selangor. The study was arranged in Randomised Complete Block Design (RCBD) with eight treatments comprising different rates of rice husk biochar (RHB), with and without AMF and four replications. The treatments were; T1 (Control), T2 (AMF only), T3 (−AMF with 10 t/ha RHB), T4 (+AMF with 10 t/ha RHB), T5 (−AMF with 15 t/ha RHB), T6 (+AMF with 15 t/ha RHB), T7 (−AMF with 20 t/ha RHB) and T8 (+AMF with 20 t/ha RHB). Plant growth measurement were determined upon harvesting after four months of planting. Shoot and root biomass, leaf area meter, root surface area and root length were found significantly highest in soursop seedlings grown in soils amended with 10 t/ha RHB with or without AMF as compared to control. It was concluded that RHB, either individually or when in combination with AMF, had significantly improved the growth performance of soursop seedlings at nursery stage. Therefore, earliest inoculation of soursop seedlings with AMF at nursery stage could ensure successful mycorrhizal establishment and growth performance of soursop seedlings before transplanted under field condition.

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MYCORRHIZAL INOCULATION AND PHOSPHORUS FERTILIZERS TO IMPROVE ONION PRODUCTIVITY IN SALINE SOIL

Acta Scientiarum Polonorum Hortorum Cultus ◽

10.24326/asphc.2019.1.6 ◽

2019 ◽

Vol 18 (1) ◽

pp. 57-66 ◽

Cited By ~ 2

Author(s):

Mansour El-Sayed Ramadan

Keyword(s):

Arbuscular Mycorrhizal Fungi ◽

Mycorrhizal Fungi ◽

Saline Soil ◽

Soluble Sugars ◽

Arbuscular Mycorrhizal ◽

Soil Conditions ◽

Phosphorus Addition ◽

Mycorrhizal Inoculation ◽

Phosphorus Application ◽

Amf Inoculation

This study investigated arbuscular mycorrhizal fungi (AMF) inoculation and phosphorus fertilizer on growth, productivity and quality of onion grown under saline soil conditions. The experiment was conducted in the Experimental Farm of Desert Research Center, Ras Sudr, South Sinai Governorate, Egypt. Egyptian local onion cultivar “Giza 20” was selected. Treatments were: two arbuscular mycorrhizal fungi (AMF) inoculation treatments [without inoculation (–AMF) and with mycorrhizal inoculation (+AMF)] and four phosphorus supplied treatments (0, 48, 96 and 144 kg P2O5 ha–1). Mycorrhizal inoculation and phosphorus addition affected the plant growth, bulb yield and quality. Morphological traits of plant (height, leaf number, fresh and dry weight), neck diameter, bulb characters (diameter and weight), total soluble sugars (TSS), protein, P content increased, while proline content decreased due to the inoculation of AMF and phosphorus application. Onion inoculated by AMF combined with 96 or 144 kg P2O5 ha–1 gave the highest productivity under saline conditions.

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Effect of Mycorrhizal Inoculation and Watering Regimes on the Growth Performance of Garcinia kola (Heckel) Seedlings

International Journal of Scientific and Research Publications (IJSRP) ◽

10.29322/ijsrp.9.08.2019.p92115 ◽

2019 ◽

Vol 9 (8) ◽

pp. p92115

Author(s):

Hammed R.A ◽

Aduradola A.M ◽

Atanda T.A ◽

Osoba A.E ◽

Lawal O.J

Keyword(s):

Growth Performance ◽

Garcinia Kola ◽

Mycorrhizal Inoculation ◽

Garcinia Kola Heckel

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Mycorrhizal inoculation increases fruit production without disturbance of native arbuscular mycorrhizal community in jujube tree orchards (Senegal)

Symbiosis ◽

10.1007/s13199-021-00757-5 ◽

2021 ◽

Author(s):

Babacar Thioye ◽

Hervé Sanguin ◽

Aboubacry Kane ◽

Cheikh Ndiaye ◽

Dioumacor Fall ◽

...

Keyword(s):

Arbuscular Mycorrhizal ◽

Fruit Production ◽

Mycorrhizal Inoculation ◽

Arbuscular Mycorrhizal Community ◽

Jujube Tree

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First Insights into the Effect of Mycorrhizae on the Expression of Pathogen Effectors during the Infection of Grapevine with Plasmopara viticola

Sustainability ◽

10.3390/su13031226 ◽

2021 ◽

Vol 13 (3) ◽

pp. 1226

Author(s):

Ana Cruz-Silva ◽

Andreia Figueiredo ◽

Mónica Sebastiana

Keyword(s):

Mycorrhizal Fungi ◽

Arbuscular Mycorrhizal ◽

Plasmopara Viticola ◽

Vitis Vinifera L ◽

Wine Production ◽

Grapevine Downy Mildew ◽

Pathogen Effectors ◽

Rxlr Effectors ◽

Mycorrhizal Inoculation ◽

And Control

Grapevine (Vitis vinifera L.), widely used for berry and wine production, is highly susceptible to the pathogenic oomycete Plasmopara viticola, the etiological agent of grapevine downy mildew disease. The method commonly used to prevent and control P. viticola infection relies on multiple applications of chemical fungicides. However, with European Union goals to lower the usage of such chemicals in viticulture there is a need to develop new and more sustainable strategies. The use of beneficial microorganisms with biocontrol capabilities, such as the arbuscular mycorrhizal fungi (AMF), has been pointed out as a viable alternative. With this study, we intended to investigate the effect of AMF colonization on the expression of P. viticola effectors during infection of grapevine. Grapevine plants were inoculated with the AMF Rhizophagus irregularis and, after mycorrhizae development, plants were infected with P. viticola. The expression of P. viticola RxLR effectors was analyzed by real-time PCR (qPCR) during the first hours of interaction. Results show that pre-mycorrhizal inoculation of grapevine alters the expression of several P. viticola effectors; namely, PvRxLR28, which presented decreased expression in mycorrhizal plants at the two time points post-infection tested. These results suggest that the pre-inoculation of grapevine with AMF could interfere with the pathogen’s ability to infect grapevine by modulation of pathogenicity effectors expression, supporting the hypothesis that AMF can be used to increase plant resistance to pathogens and promote more sustainable agriculture practices, particularly in viticulture.

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