scholarly journals Pemanfaatan Fungi Mikoriza Arbuskula Untuk Mendukung Pertumbuhan Jenis Terancam Punah Angsana Pada Media Tailing Emas

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Husna ◽  
Faisal Danu Tuheteru ◽  
Asrianti Arif ◽  
Puput Sintalia
Keyword(s):  
Mycorrhizal Inoculation

Tujuan penelitian adalah untuk mengetahui efektivitas Fungi Mikoriza Arbuskula (FMA) terhadap pertumbuhan angsana umur 4 bulan pada media tailing emas skala rumah kaca. Penelitian ini dilakukan di rumah kaca Asosiasi Mikoriza Indonesia (AMI) cabang Sulawesi Tenggara dengan perlakuan 4 (empat) inoculum FMA yakni kontrol, Acaulospora delicata, Ambiospora apendicula, dan FMA campuran. Setiap perlakuan diulang 3 kali dengan masing-masing 5 unit tanaman. Hasil penelitian menunjukkan bahwa pemanfaatan FMA signifikan meningkatkan pertumbuhan dan berat kering tanaman angsana umur 4 bulan. Inokulasi ketiga inokulum FMA siginifikan meningkatkan tinggi dan jumlah daun tanaman. FMA campuran signifikan meningkatkan diameter batang dan tidak berbeda nyata dengan A. delicata. Ketergantungan angsana terhadap fungi mikoriza tergolong tinggi (Mycorrhizal inoculation effect, 58,5-64,2%.). FMA dapat dimanfaatkan untuk konservasi jenis-jenis pohon terancam punah.

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

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.

Growth and metabolism of onion seedlings as affected by the application of humic substances, mycorrhizal inoculation and elevated CO2

2014 ◽  
Vol 180 ◽  
pp. 227-235 ◽  
Author(s):  
Marcelle M. Bettoni ◽  
Átila F. Mogor ◽  
Volnei Pauletti ◽  
Nieves Goicoechea
Keyword(s):  
Humic Substances ◽  
Elevated Co2 ◽  
Mycorrhizal Inoculation
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