Isolation of peat swamp forest foliar endophyte fungi as biofertilizer

Abstract

Peatland restoration activity is facing many obstacles, particularly in planting techniques and poor nutrient in peat soil. Naturally, endophytic fungi are abundant and have great potential as biofertilizer. This research investigates the potential endophytic fungi isolated from leaves of peat swamp tree species for biofertilizer. Research activities include: exploration, in vitro test to examine the phosphate solubilization and identification. Result showed that there were 360 leave segments collected from 4 sampling locations. The colonization percentage of 222 isolates ranged from 52.17% -60.17%. Fifty seven morphospecies were selected from 222 isolates. Twelve isolates demonstrated ability to produce clear zones and ten isolates were selected for identification. It is concluded that twelve isolated demonstrated potential ability to produce clear zone and Penicillum citrinum isolate P3.10 was identified as an isolate that show the highest potential ability as a biofertilizer.

PEMANFAATAN EKTOMIKORIZA YANG BERASOSIASI DENGAN FUNGI PELAWAN PADA PERTUMBUHAN STEK PUCUK Tristaniopsis obovata

“…Pembentukan kolonisasi ektomikoriza lebih efektif pada bibit T. obovata asal stek pucuk dibandingkan dengan bibit T. obovata asal anakan alam (Gambar 5). Ada indikasi bahwa bibit T. obovata asal anakan alam telah terkolonisasi ektomikoriza lokal sehingga menghambat efektivitas inokulasi ektomikoriza (P-1, P-2, dan P-3) pada tingkat semai, termasuk di dalamnya asosiasi fungi endofit pada sistem perakaran anak alam (Hakim et al, 2017;Maulana et al, 2018). Hal ini terbukti pada bibit T. obovata yang tidak diinokulasi (kontrol) dari asal anakan alam membentuk kolonisasi ektomikoriza secara alami (Gambar 5).…”

Viability of Penicillium Citrinum on Different Carrier Media as Organic Fertilizer

“…Formulasi (Hakim, Yuwati, & Nurulita, 2017). Isolat jamur ditumbuhkan pada media Potato Dextrose Agar (PDA) yang diinkubasi selama satu minggu pada suhu ruangan dan selanjutnya dilakukan pemanenan spora.…”

“…Meskipun jumlah kelimpahan koloni cukup tinggi, diketahui serbuk kayu memiliki C/N rasio cukup tinggi sehingga dikhawatirkan dapat mengganggu pertumbuhan tanaman. (Hakim et al, 2017). Penggunaan gambut sebagai bahan pembawa pupuk organik sudah banyak diteliti dan digunakan.…”

Emmia lacerata SR5 Promotes Michelia macclurei Growth by Enhancing Nutrient Uptake and Regulating Morphology

“…The plant growth-promoting bacterial strain 8 N-4 showed potential to serve as a biofertilizer for Mongolian wheat (Hafeez et al 2006). Endophytic fungi had the ability to solubilize phosphate (Hakim et al 2017), and biofertilizer made from arbuscular mycorrhizal fungus and bacteria had a significant growth-promoting effect on maize (Wu et al 2005). Some biological control microorganisms have also shown potential for use in biological fertilizers (Huang et al 2021;Zhang et al 2021).…”