Impact of dark septate endophytes on tomato growth and nutrient uptake

Yakti, Wael; Kovács, Gábor M.; Vági, Pál; Franken, Philipp

doi:10.1080/17550874.2019.1610912

Cited by 55 publications

(42 citation statements)

References 58 publications

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“…According to Ban et al [47], melanin, an essential antioxidant, accumulates in fungal cell walls when in contact with heavy metals to protect root cells against heavy metals. DSE colonization has also been shown to promote plant growth and allow the utilization of nutrients from organic sources and nutrient uptake in poor soils [48].…”

Section: Discussionmentioning

confidence: 99%

Seedling Growth and Phosphorus Uptake in Response to Different Phosphorus Sources

et al. 2020

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Phosphorus (P) is an essential element for plant growth and development. Finding new P sources and ways to improve crop P utilization are necessary due to the depletion of phosphate reserves. Five crop species, buckwheat (Fagopyrum esculentum L.), maize (Zea mays L.), oilseed rape (Brassica napus L. ssp. oleifera (Moench) Metzg.), spelt wheat (Triticum spelta L.), and white lupine (Lupinus albus L.), were grown in pots containing sandy soil with chemical nutrients, digestate, and meat bone meal (MBM) without added nutrients. Thirty days after the seeding plants were harvested, the growth stage, soil-plant analysis development (SPAD) value, biomass, P content of the plants, colonization of the roots with endomycorrhiza, and soil pH were analyzed, and the number of fungal spores in the soil was counted. All species showed interaction with the P sources for measured traits, except for the rhizosphere pH. A high biomass was recorded in all species fertilized with various P sources compared to the unfertilized treatment. Buckwheat and spelt wheat showed a higher P uptake with MBM, and the mycorrhizal symbiosis improved with digestate or MBM compared to synthetic P. The results indicate that different species have adaptative mechanisms to various P sources which could improve the resilience and sustainability of cropping systems.

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Section: Discussionmentioning

confidence: 99%

Seedling Growth and Phosphorus Uptake in Response to Different Phosphorus Sources

et al. 2020

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“…Positive effects of DSEs on plant growth have been mainly linked to improved plant nutrition (Haselwandter and Read 1982; Jumpponen, Mattson and Trappe 1998; Newsham 2000; Yakti et al . 2018; Yakti et al . 2019), for example, DSEs had significant effects on plant biomass when N was supplied in organic form (Newsham 2011) pointing out to their ability to solubilize nutrients.…”

Section: Discussionmentioning

confidence: 99%

Differential interaction of the dark septate endophyte Cadophora sp. and fungal pathogens in vitro and in planta

Yakti

Kovács

Franken

2019

FEMS Microbiology Ecology

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Dark septate endophytes (DSEs) present a group of widespread root-colonizing fungi. The role of these endophytes in ecosystems and their interactions with plant pathogens are not well understood. In the current study, we assessed the antagonistic potential of the model DSE Cadophora sp. against the tomato soilborne pathogens Rhizoctonia solani, Pythium aphanidermatum and Verticillium dahliae. To investigate their interactions, we conducted in vitro assays followed by a greenhouse experiments in which tomato plants were inoculated with different combinations of the DSE and pathogens. RNA accumulation of selected tomato pathogenesis-related genes and of Cadophora sp. genes with putative antifungal function was analyzed. Cadophora sp. inhibited the growth of the fungal pathogens in vitro and vice versa; a negative impact of the pathogens on the growth of the DSE was also detected. In roots, however, this mutual negative interaction could not be observed. Expression analyses of plant genes could not explain this differential effect, but among the Cadophora sp. genes analyzed, a gene coding for a chalcone synthase was downregulated in planta. The data indicate that plants can change the interaction between fungi and, therefore, in vitro detected antagonism does not necessarily reflect the situation inside the plant.

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“…Other important aspects of endophyte effects on plants relate to nutrient uptake and use, and biocontrol activity (Murphy et al 2014;Høyer et al 2019). Yakti et al (2018) have shown that two model Dark Septate Endophytes (DSE) improved nitrogen uptake in tomato from organic sources and suggested that this might be due to nutrient mobilisation rather than hyphal transport to the plant. Two of the contributions to this SI highlight the biocontrol activity…”

Section: Ecologymentioning

confidence: 99%