Strong indirect herbicide effects on mycorrhizal associations
through plant community shifts and secondary invasions

J 2017

Strong indirect herbicide effects on mycorrhizal associations through plant community shifts and secondary invasions

LEKBERG, Ylva, Viktoria WAGNER, Alexii RUMMEL, Morgan MCLEOD, Philip W. RAMSEY et. al.

Základní údaje

Originální název

Strong indirect herbicide effects on mycorrhizal associations through plant community shifts and secondary invasions

Autoři

LEKBERG, Ylva (840 Spojené státy), Viktoria WAGNER (276 Německo, garant, domácí), Alexii RUMMEL (840 Spojené státy), Morgan MCLEOD (840 Spojené státy) a Philip W. RAMSEY (840 Spojené státy)

Vydání

ECOLOGICAL APPLICATIONS, Hoboken, Wiley, 2017, 1051-0761

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10618 Ecology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 4.393

Kód RIV

RIV/00216224:14310/17:00100411

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1002/eap.1613

UT WoS

000416862700009

Klíčová slova anglicky

16:1 omega 5 lipid analysis; arbuscular mycorrhizal fungi; Centaurea stoebe; herbicide application; invasion meltdown; picloram; plant composition; Poa bulbosa; range restoration; Tordon

Štítky

NZ, rivok

Změněno: 11. 4. 2018 23:52, Ing. Nicole Zrilić

Anotace

V originále

Million of acres of U.S. wildlands are sprayed with herbicides to control invasive species, but relatively little is known about non-target effects of herbicide use. We combined greenhouse, field, and laboratory experiments involving the invasive forb spotted knapweed (Centaurea stoebe) and native bunchgrasses to assess direct and indirect effects of the forb-specific herbicide picloram on arbuscular mycorrhizal fungi (AMF), which are beneficial soil fungi that colonize most plants. Picloram had no effect on bunchgrass viability and their associated AMF in the greenhouse, but killed spotted knapweed and reduced AMF colonization of a subsequent host grown. Results were similar in the field where AMF abundance in bunchgrass-dominated plots was unaffected by herbicides one year after spraying based on 16:omega 15 phospholipid fatty acid (PLFA) and neutral lipid fatty acid (NLFA) concentrations. In spotted-knapweed-dominated plots, however, picloram application shifted dominance from spotted knapweed, a good AMF host, to bulbous bluegrass (Poa bulbosa), a poor AMF host. This coincided with a 63% reduction in soil 16:omega 15 NLFA concentrations but no reduction of 16:omega 15 PLFA. Because 16:omega 15 NLFA quantifies AMF storage lipids and 16:omega 15 PLFA occurs in AMF membrane lipids, we speculate that the herbicide-mediated reduction in host quality reduced fungal carbon storage, but not necessarily fungal abundance after one year in the field. Overall, in greenhouse and field experiments, AMF were only affected when picloram altered host quantity and quality. This apparent lack of direct effect was supported by our in-vitro trial where picloram applied to AMF mycelia did not reduce fungal biomass and viability. We show that the herbicide picloram can have profound, indirect effects on AMF within one year. Depending on herbicide-mediated shifts in host quality, rapid interventions may be necessary post herbicide applications to prevent loss of AMF abundance. Future research should assess consequences of these potential shifts for the restoration of native plants that differ in mycorrhizal dependency.

Citovat

LEKBERG, Ylva, Viktoria WAGNER, Alexii RUMMEL, Morgan MCLEOD a Philip W. RAMSEY. Strong indirect herbicide effects on mycorrhizal associations through plant community shifts and secondary invasions. ECOLOGICAL APPLICATIONS. Hoboken: Wiley, 2017, roč. 27, č. 8, s. 2359-2368. ISSN 1051-0761. Dostupné z: https://dx.doi.org/10.1002/eap.1613.

@article{1411769,
   author = {Lekberg, Ylva and Wagner, Viktoria and Rummel, Alexii and McLeod, Morgan and Ramsey, Philip W.},
   article_location = {Hoboken},
   article_number = {8},
   doi = {http://dx.doi.org/10.1002/eap.1613},
   keywords = {16:1 omega 5 lipid analysis; arbuscular mycorrhizal fungi; Centaurea stoebe; herbicide application; invasion meltdown; picloram; plant composition; Poa bulbosa; range restoration; Tordon},
   language = {eng},
   issn = {1051-0761},
   journal = {ECOLOGICAL APPLICATIONS},
   title = {Strong indirect herbicide effects on mycorrhizal associations through plant community shifts and secondary invasions},
   volume = {27},
   year = {2017}
}

TY  - JOUR
ID  - 1411769
AU  - Lekberg, Ylva - Wagner, Viktoria - Rummel, Alexii - McLeod, Morgan - Ramsey, Philip W.
PY  - 2017
TI  - Strong indirect herbicide effects on mycorrhizal associations through plant community shifts and secondary invasions
JF  - ECOLOGICAL APPLICATIONS
VL  - 27
IS  - 8
SP  - 2359-2368
EP  - 2359-2368
PB  - Wiley
SN  - 10510761
KW  - 16:1 omega 5 lipid analysis
KW  - arbuscular mycorrhizal fungi
KW  - Centaurea stoebe
KW  - herbicide application
KW  - invasion meltdown
KW  - picloram
KW  - plant composition
KW  - Poa bulbosa
KW  - range restoration
KW  - Tordon
N2  - Million of acres of U.S. wildlands are sprayed with herbicides to control invasive species, but relatively little is known about non-target effects of herbicide use. We combined greenhouse, field, and laboratory experiments involving the invasive forb spotted knapweed (Centaurea stoebe) and native bunchgrasses to assess direct and indirect effects of the forb-specific herbicide picloram on arbuscular mycorrhizal fungi (AMF), which are beneficial soil fungi that colonize most plants. Picloram had no effect on bunchgrass viability and their associated AMF in the greenhouse, but killed spotted knapweed and reduced AMF colonization of a subsequent host grown. Results were similar in the field where AMF abundance in bunchgrass-dominated plots was unaffected by herbicides one year after spraying based on 16:omega 15 phospholipid fatty acid (PLFA) and neutral lipid fatty acid (NLFA) concentrations. In spotted-knapweed-dominated plots, however, picloram application shifted dominance from spotted knapweed, a good AMF host, to bulbous bluegrass (Poa bulbosa), a poor AMF host. This coincided with a 63% reduction in soil 16:omega 15 NLFA concentrations but no reduction of 16:omega 15 PLFA. Because 16:omega 15 NLFA quantifies AMF storage lipids and 16:omega 15 PLFA occurs in AMF membrane lipids, we speculate that the herbicide-mediated reduction in host quality reduced fungal carbon storage, but not necessarily fungal abundance after one year in the field. Overall, in greenhouse and field experiments, AMF were only affected when picloram altered host quantity and quality. This apparent lack of direct effect was supported by our in-vitro trial where picloram applied to AMF mycelia did not reduce fungal biomass and viability. We show that the herbicide picloram can have profound, indirect effects on AMF within one year. Depending on herbicide-mediated shifts in host quality, rapid interventions may be necessary post herbicide applications to prevent loss of AMF abundance. Future research should assess consequences of these potential shifts for the restoration of native plants that differ in mycorrhizal dependency.
ER  -

LEKBERG, Ylva, Viktoria WAGNER, Alexii RUMMEL, Morgan MCLEOD a Philip W. RAMSEY. Strong indirect herbicide effects on mycorrhizal associations through plant community shifts and secondary invasions. \textit{ECOLOGICAL APPLICATIONS}. Hoboken: Wiley, 2017, roč.~27, č.~8, s.~2359-2368. ISSN~1051-0761. Dostupné z: https://dx.doi.org/10.1002/eap.1613.

Podrobný výpis o publikaci