At the Root of the Wood Wide Web

Giovannetti, Manuela; Avio, Luciano; Fortuna, Paola; Pellegrino, Elisa; Sbrana, Cristiana; Strani, Patrizia

doi:10.4161/psb.1.1.2277

Cited by 81 publications

(13 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“… Chen et al (2015a) reported the significant differences in growth traits when plants were grown with the same or opposite sex, and these differences were driven by the N supply. According to Giovannetti et al (2006) , Semchenko et al (2014) , and Xu (2016) , root exudates or mycorrhizal networks should play important roles in neighbor recognition and competition among different plant individuals. In the present study, we found that the growth of 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.

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition

Tang

Dong

et al. 2018

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Volatile organic compounds (VOCs) and green leaf volatiles emitted by stress-exposed plants activate the defense machinery in neighboring plants (Arimura et al, 2000 ; Baldwin et al, 2002 , 2006 ; Matsui, 2006 ; Niinemets et al, 2013 ), and the VOC blend determines the specificity of interplant communications (Ueda et al, 2012 ). Interplant communication is also mediated by common mycorrhizal networks (CMN), which interconnects roots of the same or different plant species (Fitter et al, 1998 ; Giovannetti et al, 2006 ; Selosse et al, 2006 ; Simard et al, 2012 ). CMNs transfer threat information, but also C, N, and P from one plant to another (Leake et al, 2004 ; He et al, 2009 ; Ren et al, 2013 ), thereby promoting plant performance, resource distribution within communities (Eason et al, 1991 ; Selosse et al, 2006 ; He et al, 2009 ; Barto et al, 2012 ) and survival of seedlings on the forest floor (Dickie et al, 2005a , b ; McGuire, 2007 ; Teste et al, 2009 ; Booth and Hoeksema, 2010 ; Bingham and Simard, 2011 , 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Alternaria Brassicae Induces Systemic Jasmonate Responses in Arabidopsis Which Travel to Neighboring Plants via a Piriformsopora Indica Hyphal Network and Activate Abscisic Acid Responses

et al. 2018

View full text Add to dashboard Cite

Stress information received by a particular local plant tissue is transferred to other tissues and neighboring plants, but how the information travels is not well understood. Application of Alternaria Brassicae spores to Arabidopsis leaves or roots stimulates local accumulation of jasmonic acid (JA), the expression of JA-responsive genes, as well as of NITRATE TRANSPORTER (NRT)2.5 and REDOX RESPONSIVE TRANSCRIPTION FACTOR1 (RRTF1). Infection information is systemically spread over the entire seedling and propagates radially from infected to non-infected leaves, axially from leaves to roots, and vice versa. The local and systemic NRT2.5 responses are reduced in the jar1 mutant, and the RRTF1 response in the rbohD mutant. Information about A. brassicae infection travels slowly to uninfected neighboring plants via a Piriformospora Indica hyphal network, where NRT2.5 and RRTF1 are up-regulated. The systemic A. brassicae-induced JA response in infected plants is converted to an abscisic acid (ABA) response in the neighboring plant where ABA and ABA-responsive genes are induced. We propose that the local threat information induced by A. brassicae infection is spread over the entire plant and transferred to neighboring plants via a P. indica hyphal network. The JA-specific response is converted to a general ABA-mediated stress response in the neighboring plant.

show abstract

“…AMs also enhance plant's defences against the attack from insect herbivores 13 14 . Furthermore, the same or different mycorrhizal hyphae are able to form belowground common mycorrhizal networks (CMNs) interconnecting roots of different plant individuals, species, genera and families in a plant community 15 16 17 . Mycorrhizal networks are able to transfer carbon, nitrogen and phosphorus from one plant to another 18 19 20 , which may have a significant influence on plant performance and resource distribution within plant communities 17 19 .…”

mentioning

confidence: 99%

Hijacking common mycorrhizal networks for herbivore-induced defence signal transfer between tomato plants

Song

et al. 2014

Sci Rep

107

100

View full text Add to dashboard Cite

Common mycorrhizal networks (CMNs) link multiple plants together. We hypothesized that CMNs can serve as an underground conduit for transferring herbivore-induced defence signals. We established CMN between two tomato plants in pots with mycorrhizal fungus Funneliformis mosseae, challenged a ‘donor' plant with caterpillar Spodoptera litura, and investigated defence responses and insect resistance in neighbouring CMN-connected ‘receiver' plants. After CMN establishment caterpillar infestation on ‘donor' plant led to increased insect resistance and activities of putative defensive enzymes, induction of defence-related genes and activation of jasmonate (JA) pathway in the ‘receiver' plant. However, use of a JA biosynthesis defective mutant spr2 as ‘donor' plants resulted in no induction of defence responses and no change in insect resistance in ‘receiver' plants, suggesting that JA signalling is required for CMN-mediated interplant communication. These results indicate that plants are able to hijack CMNs for herbivore-induced defence signal transfer and interplant defence communication.

show abstract

At the Root of the Wood Wide Web

Cited by 81 publications

References 66 publications

Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition

Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition

Alternaria Brassicae Induces Systemic Jasmonate Responses in Arabidopsis Which Travel to Neighboring Plants via a Piriformsopora Indica Hyphal Network and Activate Abscisic Acid Responses

Hijacking common mycorrhizal networks for herbivore-induced defence signal transfer between tomato plants

Contact Info

Product

Resources

About