Effect of Sterilization on Arbuscular Mycorrhizal Fungal Activity and Soil Nutrient Status

Hu, Wentao; Wei, Suzhen; Chen, Hui; Tang, Ming

doi:10.1007/s42729-019-00156-2

Cited by 12 publications

(4 citation statements)

References 31 publications

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“…At the beginning of June, we planted the seedlings individually into 384 plastic 1-l pots (64 seedlings per population) filled with a nutrient-poor, autoclaved (at 120 °C, 1 bar, for 20 min) growth substrate consisting of 50% commercial (Kekkilä) sand and 50% potting mix ( Kekkilä karkea ruukutusseos ). The commercial growth substrate was used to ensure homogeneous low-nutrient growth conditions across treatments, and possible increase in nutrient availability caused by soil autoclaving (Trevors 1996, Hu et al . 2019) was mitigated by sand addition.…”

Section: Methodsmentioning

confidence: 99%

Growth of Invasive Lupinus polyphyllus (Fabaceae) is Not Affected by Site Invasion History

Ramula

Kalske

2023

Annales Botanici Fennici

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For invasive plant species that associate with mutualists, the presence of suitable partners or a lack thereof can be important to invasion success. We studied the effects of site invasion history and soil microbiota on the performance, folivore damage, and resistance to a fungal disease of the invasive legume Lupinus polyphyllus (Fabaceae). We discovered that the plant invader benefited from soil microbes: plants treated with an intact soil inoculum nodulated more than those grown in autoclaved soils, and tended to have higher biomass and a smaller relative investment in roots as compared with that in shoots. However, the origin of soil inoculum (previously invaded, uninvaded) had no effect on the invader's performance, the occurrence of folivory or resistance to fungal disease. Our results indicate that mutualistic associations in soils outweigh potential antagonistic interactions between plants and soil pathogens. Nevertheless, these mutualistic associations are not unique to previously invaded sites in the study area.

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Section: Methodsmentioning

confidence: 99%

Growth of Invasive Lupinus polyphyllus (Fabaceae) is Not Affected by Site Invasion History

Ramula

Kalske

2023

Annales Botanici Fennici

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“…However, infected roots were still found after sterilization with formaldehyde, indicating that there were strains resistant to formalin (Hayman, 1970). Hu et al (2020) mention that sterilization reduces colonization to less than 0.1% as well as decreases the germination rate and survival rate of VAM. The high percentage of VAM infections is also caused by the P content that is not high.…”

Section: Root Infectionmentioning

confidence: 97%

The Role of Indigenous Mycorrhizae of Corn Plants in Various Soil Types in Gunung Kidul, Indonesia

2022

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Indigenous Vesicular-Arbuscular Mycorrhizae (VAM) are natural mycorrhizae from specific areas that have good environmental adaptability. This study, conducted from January to November 2020 at the Faculty of Agriculture, Universitas Gadjah Mada, aimed to isolate the vesicular-arbuscular mycorrhizal fungus so that it can be used as information on the type and role of VAM on Gunung Kidul soil. The research was arranged in a Completely Randomized Design (CRD) with three factors. The first factor was soil type from Gunung Kidul Regency (Inceptisol, Mollisol, and Alfisol), the second factor was sterilization (sterilized soil and unsterilized soil), and the third factor was corn variety (local and hybrid). Analysis of soil and plant growth was performed by using Analysis of Variance (ANOVA) and Tukey's Honestly Significant Difference (Tukey's HSD) Test. Genetic detection of root infecting VAM was performed by using Terminal Restriction Fragment Length Polymorphism (T-RFLP) method with FAM AML1-AML2 labeled primers. The VAM detected in the roots of hybrid variety included Acaulospora sp., Gigaspora sp., and Septoglomus sp., and those in the roots of local variety were Acaulospora sp., Gigaspora sp., and Funelisformis sp. The results showed that the role of VAM could be seen through unsterilized soil so that there was no VAM elimination in the soil. Unsterilized soil showed the best results of root infection, leaf fresh and dry weight, leaf phosphor (P) content, and leaf P uptake. Meanwhile, Alfisol showed the best result of root infection, fresh weight, dry weight, leaf P content, and leaf P uptake. The treatment of plant varieties showed that the varieties did not significantly affect the root infection, fresh weight, dry weight, leaf P content, and leaf P uptake.

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“…SMS has high water retention capacity, allowing the creation of a high-humidity microclimate, which might have compromised microbial respiration (Silva et al 2007b). In the experimental units, microbial populations were composed of nematodes and any remaining fungi in SMS, given that the soil used was previously autoclaved, eliminating other organisms (Hu et al 2019). Therefore, the results agree with the hypothesis that treatments with a higher concentration of P. djamor spent substrate promoted an increase in soil microbial biomass.…”

Section: )mentioning

confidence: 99%

Control of Meloidogyne javanica with Pleurotus djamor spent mushroom substrate

Lopes

Gomes

Dias‐Arieira

et al. 2022

Preprint

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Background The interest in the development of ecologically correct products associated with the loss of efficiency of chemical nematicides for the control management of this pest is growing. Thus, the adoption of biological control or the use of biopesticides are excellent options for these products. Spent mushroom substrate (SMS), a product of the mushroom production industry, has great potential for biological control due to its high levels of mycelium, residual enzymes, high humidity and unique microbiota that may contain other nematode antagonists. For this reason, this study aimed to evaluate the potential of spent mushroom substrate (SMS) from Pleurotus djamor cultivation in the control of Meloidogyne javanica in lettuce and assess its effects on plant resistance enzymes and soil biological activity. Results SMS reduced nematode reproduction, and a plateau was reached at SMS concentrations above 15%. Higher concentrations of SMS caused phytotoxicity in lettuce, with reduction of vegetative variables, chlorophyll content and nitrogen balance in the leaves; however, SMS increases the anthocyanin content. Guaiacol peroxidase activity was highest in treatments containing 0% and 30% SMS and phenylalanine ammonia-lyase activity was highest in the 60% SMS treatment, suggesting induction of resistance to M. javanica. The maximum soil basal respiration was estimated to be achieved with 25.75% SMS, whereas the maximum soil metabolic quotient was estimated to be achieved with 8.8% SMS. Soil biomass carbon increased with increasing SMS proportion. Conclusions Spent substrate from P. djamor cultivation incorporated in soil at proportions of 15, 30, 45 e 60% is efficient in controlling M. javanica in lettuce.

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Effect of Sterilization on Arbuscular Mycorrhizal Fungal Activity and Soil Nutrient Status

Cited by 12 publications

References 31 publications

Growth of Invasive Lupinus polyphyllus (Fabaceae) is Not Affected by Site Invasion History

Growth of Invasive Lupinus polyphyllus (Fabaceae) is Not Affected by Site Invasion History

The Role of Indigenous Mycorrhizae of Corn Plants in Various Soil Types in Gunung Kidul, Indonesia

Control of Meloidogyne javanica with Pleurotus djamor spent mushroom substrate

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