Dark Septate Root Endophytic Fungus Nectria haematococca Improves Tomato Growth Under Water Limiting Conditions

Valli, Piramanagayam Prema Sundara; Muthukumar, Thangavelu

doi:10.1007/s12088-018-0749-6

Cited by 40 publications

(14 citation statements)

References 27 publications

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“…Indeed, in our study, we observed elevation of K and N levels associated with increases of approximately 20% in the total leaf area. This positive effect of fungal DSE isolates on the leaf area was previously observed by other studies [54,90].…”

supporting

confidence: 87%

Dark septate endophytic fungi increase the activity of proton pumps, efficiency of 15N recovery from ammonium sulphate, N content, and micronutrient levels in rice plants

et al. 2019

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Plants colonised by dark septate endophytic (DSE) fungi show increased uptake of nutrients available in the environment. The objective of the present study was to evaluate the impact of DSE fungi on the activity of proton pumps, nitrogen (N) recovery from ammonium sulphate, and nutrient accumulation in rice plants. Treatments consisted of non-inoculated plants and plants inoculated with two isolates of DSE fungi, A101 and A103. To determine N recovery from the soil, ammonium sulphate enriched with 15 N was added to a non-sterile substrate while parameters associated with the activity of proton pumps and with NO 3 − uptake were determined in a sterile environment. The A101 and A103 fungal isolates colonised the roots of rice plants, promoting 15 N uptake, growth, and accumulation of nutrients as compared with the mock control. A103 induced the expression of the plasma membrane H + -ATPase (PM H + -ATPase) isoforms OsA5 and OsA8, the activity of the PM H + -ATPase and H +pyrophosphatase. Our results suggest that the inoculation of rice plants with DSE fungi represents a strategy to improve the N recovery from ammonium sulphate and rice plant growth through the induction of OsA5 and OsA8 isoforms and stimulation of the PM H + -ATPase and H + -pyrophosphatase.

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confidence: 87%

Dark septate endophytic fungi increase the activity of proton pumps, efficiency of 15N recovery from ammonium sulphate, N content, and micronutrient levels in rice plants

et al. 2019

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“…Here, inoculation with PC, EG, DA, PT and AV 2 increased the proline content of I. indigotica compared to that of control plants, suggesting that the inoculated plants had a higher osmotic adjustment capacity under drought stress. Valli and Muthukumar (2018) found that DSE inoculation could enhance proline accumulation in tomato shoots under water-limited conditions. These results indicate that DSE inoculation can regulate proline accumulation to facilitate osmotic regulation, leading to enhanced tolerance to dehydration under water deficits (Hosseini et al 2017;Zang et al 2015).…”

Section: Discussionmentioning

confidence: 97%

Growth-promoting effects of dark septate endophytes on the non-mycorrhizal plant Isatis indigotica under different water conditions

Hou

Liu

et al. 2021

Symbiosis

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Dark septate endophytes (DSE) are root-associated fungi and can form plant-DSE symbioses to enhance the growth and abiotic stress resistance of plants. Although DSE exist in many non-mycorrhizal plants, the growing effects of DSE on non-mycorrhizal plants are currently poorly documented. This study investigated how DSE from mycorrhizal plants affect non-mycorrhizal plant growth especially under drought stress. In this study, the non-mycorrhizal plant Isatis indigotica was inoculated with DSE isolated from the roots of mycorrhizal plant Glycyrrhiza uralensis that grows in desert and farmland environments to evaluate plant performance and active ingredient content under different water treatments by measuring growth parameters and physiological indexes. The results indicated that seven DSE colonized the roots of I. indigotica regardless of watering regime. Inoculation with Acrocalymma vagum, Edenia gomezpompae and Darksidea alpha enhanced plant biomass, root surface area and epigoitrin content, and reduced oxidative damage from drought stress. Under drought stress condition, DSE inoculation caused remarkable increases in photosynthesis and revealed positive effects on SOD activity and proline content, which was reliance on fungus species. Correlation analyses indicated that root biomass was negatively correlated with soil pH and available phosphorus, and net photosynthetic rate was negatively correlated with soil organic carbon and available phosphorus. Therefore, DSE isolated from mycorrhizal plants could enhance the growth and active ingredient content of I. indigotica. The link between DSE and non-mycorrhizal plant highlights a potential application for DSE strains in dryland medicinal plant cultivation.

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“…Ramy et al (2020) found that metabolites of Cladosporiumin can effectively inhibit pathogenic microorganisms. Nectria haematococca can signi cantly improve plant growth parameters and promote plant growth under abiotic stress (Prema et al, 2018). Enrichment for Lecanicillium, Novosphingobium, Cladosporium, Cordycipitaceae and Nectria may be caused by a better growth performance in Victoria than in the two other.…”

Section: Discussionmentioning

confidence: 99%

Comparison of rhizosphere soil microbial diversity of different introduced alfalfa varieties

Ma¹,

Qi²,

Yu³

et al. 2020

Preprint

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Alfalfa (Medicago sativa L.) is an important forage legume in farming and animal husbandry systems. In this study, MiSeq high-throughput sequencing was applied to assess the relationship between bacterial and fungal community structures and alfalfa growth characteristics and soil physical and chemical properties induced by different cultivars alfalfa (Victoria, Kangsai, Aohan) in the grey desert soil. The results showed that the diversity of bacterial and fungal in Victoria was higher, and the bacterial diversity was significantly lower for alfalfa with Aohan than for the others, and the fungal diversity was lower for alfalfa with Kangsai than for the others. Heatmap showed that total nitrogen, fresh weight, pH and organic have significantly affect fungal community structure, whereas pH and organic carbon also significant effects on bacterial community structure. LefSe analysis showed that the growth adaptability of introduced alfalfa is mainly related to fungal and bacterial species, and the beneficial microorganisms with significant differences and relative high abundance are significantly enriched in Victoria. Pathogens with high relative abundance are mainly concentrated in Aohan alfalfa soil. Based on our findings, Victoria is the high-yield alfalfa suitable for planting in gray desert soil, while planting Kangsai and Aohan alfalfa needs probiotic for adjuvant.

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Dark Septate Root Endophytic Fungus Nectria haematococca Improves Tomato Growth Under Water Limiting Conditions

Cited by 40 publications

References 27 publications

Dark septate endophytic fungi increase the activity of proton pumps, efficiency of 15N recovery from ammonium sulphate, N content, and micronutrient levels in rice plants

Dark septate endophytic fungi increase the activity of proton pumps, efficiency of 15N recovery from ammonium sulphate, N content, and micronutrient levels in rice plants

Growth-promoting effects of dark septate endophytes on the non-mycorrhizal plant Isatis indigotica under different water conditions

Comparison of rhizosphere soil microbial diversity of different introduced alfalfa varieties

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