Effects of Arbuscular Mycorrhizal Fungi on the Vegetative Vigor of Ailanthus altissima (Mill.) Swingle Seedlings under Sustained Pot Limitation

Emilio Badalamenti, Paola Quatrini, Tommaso La Mantia, Marco Ciolfi, Marco Lauteri

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Abstract

In order to invade new ecosystems, invasive alien plants need to cope with differentmicrobial communities. Whilst the ability to avoid antagonists is well recognized, the opportunityto establish mutualistic associations is less known, even in widespread invasive species such asAilanthus altissima (Mill.) Swingle. We sought to evaluate whether the beneficial effects of arbuscularmycorrhizal fungi (AMF) on Ailanthus seedlings are maintained over time, under prolonged potlimitation. We compared three-month-, three-year- and four-year-old mycorrhizal seedlings grown innatural forest soil (NT) with seedlings grown in sterilized (ST) and non-mycorrhizal (NM) soils, in potsof 3.4 L (22 x 15 cm). Growth parameters and leaf traits were assessed, including carbon (13C) andnitrogen (15N) stable isotope compositions. NT seedlings showed relatively higher vigor in the earlystage but, subsequently, the benefits provided by AMF were lost. Interestingly, mycorrhizal seedlingsconsistently showed about 2‰ 13C enrichment, relatively to the other treatments. Negative linearrelationships between leaf 13C and N content were found. Higher photosynthesis rates and WUE arethe likely causes of the early enhanced growth in mycorrhizal seedlings. The symbiotic relationshipbetween AMF and Ailanthus could be driven by resource availability. Greater insights into suchaspects could provide an improved perspective on the ecological limits of Ailanthus
Lingua originaleEnglish
pagine (da-a)1-13
Numero di pagine13
RivistaForests
Volume9
Stato di pubblicazionePublished - 2018

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Ailanthus altissima
vigor
Ailanthus
mycorrhizal fungi
seedling
fungus
seedlings
fungi
introduced plants
resource availability
water use efficiency
invasive species
forest soils
forest soil
stable isotopes
leaves
antagonists
photosynthesis
stable isotope
effect

All Science Journal Classification (ASJC) codes

  • Forestry

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title = "Effects of Arbuscular Mycorrhizal Fungi on the Vegetative Vigor of Ailanthus altissima (Mill.) Swingle Seedlings under Sustained Pot Limitation",
abstract = "In order to invade new ecosystems, invasive alien plants need to cope with differentmicrobial communities. Whilst the ability to avoid antagonists is well recognized, the opportunityto establish mutualistic associations is less known, even in widespread invasive species such asAilanthus altissima (Mill.) Swingle. We sought to evaluate whether the beneficial effects of arbuscularmycorrhizal fungi (AMF) on Ailanthus seedlings are maintained over time, under prolonged potlimitation. We compared three-month-, three-year- and four-year-old mycorrhizal seedlings grown innatural forest soil (NT) with seedlings grown in sterilized (ST) and non-mycorrhizal (NM) soils, in potsof 3.4 L (22 x 15 cm). Growth parameters and leaf traits were assessed, including carbon (13C) andnitrogen (15N) stable isotope compositions. NT seedlings showed relatively higher vigor in the earlystage but, subsequently, the benefits provided by AMF were lost. Interestingly, mycorrhizal seedlingsconsistently showed about 2‰ 13C enrichment, relatively to the other treatments. Negative linearrelationships between leaf 13C and N content were found. Higher photosynthesis rates and WUE arethe likely causes of the early enhanced growth in mycorrhizal seedlings. The symbiotic relationshipbetween AMF and Ailanthus could be driven by resource availability. Greater insights into suchaspects could provide an improved perspective on the ecological limits of Ailanthus",
author = "Emilio Badalamenti and Paola Quatrini and {La Mantia}, Tommaso and Marco Ciolfi and Marco Lauteri",
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language = "English",
volume = "9",
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TY - JOUR

T1 - Effects of Arbuscular Mycorrhizal Fungi on the Vegetative Vigor of Ailanthus altissima (Mill.) Swingle Seedlings under Sustained Pot Limitation

AU - Badalamenti, Emilio

AU - Quatrini, Paola

AU - La Mantia, Tommaso

AU - Ciolfi, Marco

AU - Lauteri, Marco

PY - 2018

Y1 - 2018

N2 - In order to invade new ecosystems, invasive alien plants need to cope with differentmicrobial communities. Whilst the ability to avoid antagonists is well recognized, the opportunityto establish mutualistic associations is less known, even in widespread invasive species such asAilanthus altissima (Mill.) Swingle. We sought to evaluate whether the beneficial effects of arbuscularmycorrhizal fungi (AMF) on Ailanthus seedlings are maintained over time, under prolonged potlimitation. We compared three-month-, three-year- and four-year-old mycorrhizal seedlings grown innatural forest soil (NT) with seedlings grown in sterilized (ST) and non-mycorrhizal (NM) soils, in potsof 3.4 L (22 x 15 cm). Growth parameters and leaf traits were assessed, including carbon (13C) andnitrogen (15N) stable isotope compositions. NT seedlings showed relatively higher vigor in the earlystage but, subsequently, the benefits provided by AMF were lost. Interestingly, mycorrhizal seedlingsconsistently showed about 2‰ 13C enrichment, relatively to the other treatments. Negative linearrelationships between leaf 13C and N content were found. Higher photosynthesis rates and WUE arethe likely causes of the early enhanced growth in mycorrhizal seedlings. The symbiotic relationshipbetween AMF and Ailanthus could be driven by resource availability. Greater insights into suchaspects could provide an improved perspective on the ecological limits of Ailanthus

AB - In order to invade new ecosystems, invasive alien plants need to cope with differentmicrobial communities. Whilst the ability to avoid antagonists is well recognized, the opportunityto establish mutualistic associations is less known, even in widespread invasive species such asAilanthus altissima (Mill.) Swingle. We sought to evaluate whether the beneficial effects of arbuscularmycorrhizal fungi (AMF) on Ailanthus seedlings are maintained over time, under prolonged potlimitation. We compared three-month-, three-year- and four-year-old mycorrhizal seedlings grown innatural forest soil (NT) with seedlings grown in sterilized (ST) and non-mycorrhizal (NM) soils, in potsof 3.4 L (22 x 15 cm). Growth parameters and leaf traits were assessed, including carbon (13C) andnitrogen (15N) stable isotope compositions. NT seedlings showed relatively higher vigor in the earlystage but, subsequently, the benefits provided by AMF were lost. Interestingly, mycorrhizal seedlingsconsistently showed about 2‰ 13C enrichment, relatively to the other treatments. Negative linearrelationships between leaf 13C and N content were found. Higher photosynthesis rates and WUE arethe likely causes of the early enhanced growth in mycorrhizal seedlings. The symbiotic relationshipbetween AMF and Ailanthus could be driven by resource availability. Greater insights into suchaspects could provide an improved perspective on the ecological limits of Ailanthus

UR - http://hdl.handle.net/10447/298799

UR - http://www.mdpi.com/1999-4907/9/7/409/pdf

M3 - Article

VL - 9

SP - 1

EP - 13

JO - Forests

JF - Forests

SN - 1999-4907

ER -