Relationship between mycorrhizal responsiveness and root traits in European sand dune species

Unger, Stephan; Friede, Martina; Volkmar, K. M.; Hundacker, Janik; Beyschlag, Wolfram

doi:10.1016/j.rhisph.2017.04.008

Cited by 11 publications

(7 citation statements)

References 68 publications

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“…In our study, we found that colonization was significantly increased by additional AM fungi inoculation in both male and female saplings ( P < 0.001), and males had an approximately 22.85% higher colonization level than females when grown with the opposite sex ( Table 2 ). Previous studies reported that AM fungi could alter the longevity and morphology of roots in peanut ( Arachis hypogaea ), pigeon pea ( Cajanus cajan ), Populus generosa , and strawberry ( Fragaria × ananassa ; e.g., Berta et al, 1993 ; Hooker et al, 1995 ; Yano et al, 1996 ; Fan et al, 2011 ), and they also reported that some species exhibiting relative colonization levels of above 70% had a lower root biomass accumulation in Anthoxanthum odoratum , Avena sativa , Erodium cicutarium , Sesbania pubeseens , and Sesbania nudzca ( Tawaraya, 2003 ; Unger et al, 2016 , 2017 ). Consequently, different colonization levels between male and female P .…”

Section: Discussionmentioning

confidence: 99%

Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition

Tang

Dong

et al. 2018

Front. Plant Sci.

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Sex-specific responses to mycorrhiza have been reported in dioecious plant species, but little attention has been paid to the influence of arbuscular mycorrhizal (AM) fungi on competitive ability under intersexual competition. To further address whether this competition is affected by an additional AM fungi supply, Populus cathayana saplings were chosen and subjected to two mycorrhizal treatments [inoculated and non-inoculated (control) with an additional AM fungi Funneliformis mosseae] while growing with the opposite sex for 3 months. Compared with the control, the additional AM fungi inoculation induced P. cathayana saplings to exhibit significant sexual differences in root structure and nutrient uptake (e.g., cortical layer, cross-section area, radius of root tips, and N, K, and Mg content), and enlarged sexual differences in morphology and biomass accumulation (e.g., leaf number increment, shoot height increment, total leaf area, total specific root length, stem dry mass, leaf dry mass, and total dry mass). Meanwhile, inoculated females presented higher values in most of these traits mentioned above than males under intersexual competition. Therefore, we conclude that the intersexual competition can be increased by an additional AM fungi supply, with females gaining more symbiosis-mediated benefits than males.

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Section: Discussionmentioning

confidence: 99%

Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition

Tang

Dong

et al. 2018

Front. Plant Sci.

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“…Thicker Juglans spp. absorptive roots are thus able to support more arbuscular mycorrhizas per unit root length or mass because AM fungi form associations within cortical cells along the root axis (Brundrett 2002(Brundrett , 2009Guo et al 2008;Zadworny and Eissenstat 2011;Unger et al 2017). In contrast, in EM associations, fungi predominantly form Hartig nets in the intercellular spaces of root tips, so that fine root systems are more adapted to EM fungal colonization (Brundrett 2002;Comas et al 2014).…”

Section: Root Diameter and Branching Order Of Absorptive Rootsmentioning

confidence: 99%

Forty years of study on interactions between walnut tree and arbuscular mycorrhizal fungi. A review

Mortier

Lamotte

Martin-Laurent

et al. 2020

Agron. Sustain. Dev.

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Walnut trees are among the most important hardwood species in the northern hemisphere, ecologically and economically. They are mainly cultivated for timber and nut production but are also attractive ornamental trees in parks. Establishing walnut orchards is difficult because seedlings have a coarse root architecture and few of them survive to transplanting. Planting success is mainly determined by the root system morphology and the nutrient status of the seedlings, so that rhizosphere conditions are critical for plant performance. Walnut trees can associate with soil-borne arbuscular mycorrhizal fungi, which are obligate biotrophs. In this association, plant-produced carbon compounds are traded against fungus-acquired soil mineral nutrients. The beneficial effect of arbuscular mycorrhizal symbiosis on hardwood seedling quality and field performance has long been known, but an integrated view is lacking about the effects of arbuscular mycorrhizas on walnut cropping. Therefore, we surveyed the literature published over the last 40 years to provide up-to-date knowledge on the relationships between arbuscular mycorrhizas and walnut trees. Our review outlines the major following points: (1) the arbuscular-mycorrhiza-mediated nutrient uptake capacity of walnut trees is associated with first- to third-order roots, and fibrous tip-ended roots are dependent on arbuscular mycorrhizal fungi, whereas pioneer roots are not; (2) early inoculation with arbuscular mycorrhizal fungi improves the survival and seedling performance attributes of transplanted walnut trees: biotization enhances walnut transplant success by increasing the number of lateral roots and plant P uptake, but these benefits are fungus- and host-dependent; (3) in the context of walnut agroforestry, deeply rooted walnut trees play a role as reservoirs of arbuscular mycorrhizal fungal propagules for the surrounding vegetation, but tree shade and soluble phosphate availability decrease walnut mycorrhizal dependency; and (4) the arbuscular mycorrhizal mycelium mediates the transport of juglone and thus plays a role in walnut tree allelopathy.

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“…This prediction is motivated by the observation that some invasive species can be highly colonized by AMF (e.g., Zhang et al, 2010; Dong et al, 2021), although direct comparisons to congeneric native taxa are often lacking. Alternatively, AMF colonization might also be lower in invasive species compared to congeneric native species because traits often ascribed to a fast growth strategy (e.g., high production of fine, short‐lived, thin roots with high specific root length) are associated with reduced AMF colonization and/or lower dependence on AMF (Hetrick, 1991; Wilson and Hartnett, 1998; Brundrett, 2002; Comas and Eissenstat, 2004; Eissenstat et al, 2015; Unger et al, 2017; McCormack and Iverson, 2019; but see Maherali, 2014). This link between functional traits and AMF is often examined outside the context of species invasions (e.g., Kong et al, 2014; Ma et al, 2018), despite the fact that the fast‐growth strategy of many invasive species relative to native species offers a useful context to understand the connection between plant strategy and mycorrhizal symbioses.…”

mentioning

confidence: 99%

Woody invaders are more highly colonized by arbuscular mycorrhizal fungi than congeneric native species

Lamit

Giovati

et al. 2022

American J of Botany

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Premise: Invasive species tend to possess acquisitive plant traits that support fast growth and strong competitive ability. However, the relevance of symbioses with arbuscular mycorrhizal fungi (AMF) to the fast growing, acquisitive strategy of invasive species is still unclear. Methods: We measured AMF colonization in roots of five congeneric pairs of invasive and native eastern North American woody species (10 species total; 4 lianas, 6 shrubs) that were grown in a monoculture common garden experiment in Syracuse, NY. We then examined the relationships of AMF colonization to above and belowground traits of these species. Results: Total AMF colonization and arbuscule colonization were greater in invasive compared to native woody species, a pattern that was more distinct in congeneric shrubs than congeneric lianas. The level of AMF colonization was also positively correlated with traits indicative of rapid plant growth and nutrient uptake. Conclusions: The concordance of a resource-acquisitive strategy with higher AMF colonization suggests that symbioses with AMF may be part of the strategy by which invasive woody plants of eastern North America are able to maintain fast growth rates and outcompete their native counterparts.

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Relationship between mycorrhizal responsiveness and root traits in European sand dune species

Cited by 11 publications

References 68 publications

Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition

Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition

Forty years of study on interactions between walnut tree and arbuscular mycorrhizal fungi. A review

Woody invaders are more highly colonized by arbuscular mycorrhizal fungi than congeneric native species

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