Fungal root endophytes influence plants in a species-specific manner that depends on plant's growth stage

Stefan Geisen; Freddy C. ten Hooven; Olga Kostenko; L. Basten Snoek; Wim H. van der Putten

doi:10.1111/1365-2745.13584

Fungal root endophytes influence plants in a species-specific manner that depends on plant's growth stage

Stefan Geisen (Corresponding author), Freddy C. ten Hooven, Olga Kostenko, L. Basten Snoek, Wim H. van der Putten

NIOO - Terrestrial Ecology (TE)

Research output: Contribution to journal/periodical › Article › Scientific › peer-review

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Abstract

The mycobiome (fungal microbiome) influences plants—from seed germination to full maturation. While many studies on fungal-plant interaction studies have focused on known mutualistic and pathogenic fungi, the functional role of ubiquitous endophytic fungi remains little explored. We examined how root-inhabiting fungi (endophytes) influence range-expanding plant species. We isolated endophytes from three European intra-continental range-expanders and three congenerics that are native both in the range expander's original (southern Europe) and new (northern Europe) range. To standardize our collection, endophytes were obtained from all six plant species growing under controlled conditions in northern (new range of the range expander) and southern (native range of the range expander) soils. We cultivated, molecularly identified and tested the effects of all isolates on seed germination, and growth of seedlings and older plants. Most of the 34 isolates could not be functionally characterized based on their taxonomic identity and literature information on functions. Endophytes affected plant growth in a plant species–endophyte-specific manner, but overall differed between range-expanders and natives. While endophytes reduced germination and growth of range-expanders compared to natives, they reduced seedling growth of natives more than of range-expanders. Synthesis. We conclude that endophytic fungi have a direct effect on plant growth in a plant growth stage-dependent manner. While these effects differed between range expanders and natives, the effect strength and significance varied among the plant genera included in the present study. Nevertheless, endophytes likely influence the establishment of newly arriving plants and influence vegetation dynamics.

Original language	English
Pages (from-to)	1618-1632
Journal	Journal of Ecology
Volume	109
Issue number	4
DOIs	https://doi.org/10.1111/1365-2745.13584
Publication status	Published - 2021

Keywords

climate change
enemy release hypothesis
fungi
pathogens
plant–soil interactions
range-expanding plant species
root microbiome
soil biodiversity
NIOO
Plan_S-Compliant_TA

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title = "Fungal root endophytes influence plants in a species-specific manner that depends on plant's growth stage",

abstract = "The mycobiome (fungal microbiome) influences plants—from seed germination to full maturation. While many studies on fungal-plant interaction studies have focused on known mutualistic and pathogenic fungi, the functional role of ubiquitous endophytic fungi remains little explored. We examined how root-inhabiting fungi (endophytes) influence range-expanding plant species. We isolated endophytes from three European intra-continental range-expanders and three congenerics that are native both in the range expander's original (southern Europe) and new (northern Europe) range. To standardize our collection, endophytes were obtained from all six plant species growing under controlled conditions in northern (new range of the range expander) and southern (native range of the range expander) soils. We cultivated, molecularly identified and tested the effects of all isolates on seed germination, and growth of seedlings and older plants. Most of the 34 isolates could not be functionally characterized based on their taxonomic identity and literature information on functions. Endophytes affected plant growth in a plant species–endophyte-specific manner, but overall differed between range-expanders and natives. While endophytes reduced germination and growth of range-expanders compared to natives, they reduced seedling growth of natives more than of range-expanders. Synthesis. We conclude that endophytic fungi have a direct effect on plant growth in a plant growth stage-dependent manner. While these effects differed between range expanders and natives, the effect strength and significance varied among the plant genera included in the present study. Nevertheless, endophytes likely influence the establishment of newly arriving plants and influence vegetation dynamics.",

keywords = "climate change, enemy release hypothesis, fungi, pathogens, plant–soil interactions, range-expanding plant species, root microbiome, soil biodiversity, NIOO, Plan_S-Compliant_TA",

author = "Stefan Geisen and {ten Hooven}, {Freddy C.} and Olga Kostenko and Snoek, {L. Basten} and {van der Putten}, {Wim H.}",

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year = "2021",

doi = "10.1111/1365-2745.13584",

language = "English",

volume = "109",

pages = "1618--1632",

journal = "Journal of Ecology",

issn = "0022-0477",

publisher = "Wiley-Blackwell",

number = "4",

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Fungal root endophytes influence plants in a species-specific manner that depends on plant's growth stage. / Geisen, Stefan (Corresponding author); ten Hooven, Freddy C.; Kostenko, Olga; Snoek, L. Basten ; van der Putten, Wim H.

In: Journal of Ecology, Vol. 109, No. 4, 2021, p. 1618-1632.

Research output: Contribution to journal/periodical › Article › Scientific › peer-review

TY - JOUR

T1 - Fungal root endophytes influence plants in a species-specific manner that depends on plant's growth stage

AU - Geisen, Stefan

AU - ten Hooven, Freddy C.

AU - Kostenko, Olga

AU - Snoek, L. Basten

AU - van der Putten, Wim H.

N1 - 7155, TE

PY - 2021

Y1 - 2021

N2 - The mycobiome (fungal microbiome) influences plants—from seed germination to full maturation. While many studies on fungal-plant interaction studies have focused on known mutualistic and pathogenic fungi, the functional role of ubiquitous endophytic fungi remains little explored. We examined how root-inhabiting fungi (endophytes) influence range-expanding plant species. We isolated endophytes from three European intra-continental range-expanders and three congenerics that are native both in the range expander's original (southern Europe) and new (northern Europe) range. To standardize our collection, endophytes were obtained from all six plant species growing under controlled conditions in northern (new range of the range expander) and southern (native range of the range expander) soils. We cultivated, molecularly identified and tested the effects of all isolates on seed germination, and growth of seedlings and older plants. Most of the 34 isolates could not be functionally characterized based on their taxonomic identity and literature information on functions. Endophytes affected plant growth in a plant species–endophyte-specific manner, but overall differed between range-expanders and natives. While endophytes reduced germination and growth of range-expanders compared to natives, they reduced seedling growth of natives more than of range-expanders. Synthesis. We conclude that endophytic fungi have a direct effect on plant growth in a plant growth stage-dependent manner. While these effects differed between range expanders and natives, the effect strength and significance varied among the plant genera included in the present study. Nevertheless, endophytes likely influence the establishment of newly arriving plants and influence vegetation dynamics.

AB - The mycobiome (fungal microbiome) influences plants—from seed germination to full maturation. While many studies on fungal-plant interaction studies have focused on known mutualistic and pathogenic fungi, the functional role of ubiquitous endophytic fungi remains little explored. We examined how root-inhabiting fungi (endophytes) influence range-expanding plant species. We isolated endophytes from three European intra-continental range-expanders and three congenerics that are native both in the range expander's original (southern Europe) and new (northern Europe) range. To standardize our collection, endophytes were obtained from all six plant species growing under controlled conditions in northern (new range of the range expander) and southern (native range of the range expander) soils. We cultivated, molecularly identified and tested the effects of all isolates on seed germination, and growth of seedlings and older plants. Most of the 34 isolates could not be functionally characterized based on their taxonomic identity and literature information on functions. Endophytes affected plant growth in a plant species–endophyte-specific manner, but overall differed between range-expanders and natives. While endophytes reduced germination and growth of range-expanders compared to natives, they reduced seedling growth of natives more than of range-expanders. Synthesis. We conclude that endophytic fungi have a direct effect on plant growth in a plant growth stage-dependent manner. While these effects differed between range expanders and natives, the effect strength and significance varied among the plant genera included in the present study. Nevertheless, endophytes likely influence the establishment of newly arriving plants and influence vegetation dynamics.

KW - climate change

KW - enemy release hypothesis

KW - fungi

KW - pathogens

KW - plant–soil interactions

KW - range-expanding plant species

KW - root microbiome

KW - soil biodiversity

KW - NIOO

KW - Plan_S-Compliant_TA

U2 - 10.1111/1365-2745.13584

DO - 10.1111/1365-2745.13584

M3 - Article

AN - SCOPUS:85099988671

VL - 109

SP - 1618

EP - 1632

JO - Journal of Ecology

JF - Journal of Ecology

SN - 0022-0477

IS - 4

ER -