Seed size influences arbuscular mycorrhizal symbiosis across leguminous host-plant species at the seedling stage

Jin, Liang; Wang, Shuhe; Wang, Xiaojuan; Shen, Yuying

doi:10.1007/s13199-009-0013-2

Cited by 11 publications

(7 citation statements)

References 37 publications

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“…Levels of mycorrhizal colonization were similar for all species with the exception of Castilla, which showed no signs of colonization in our experiment, even though the species is known to be facultatively mycorrhizal (Janos 1980). Castilla had much larger seeds (0.5 g) compared to the other four species (0.001-0.03 g), and the presence of larger seed reserves may have delayed establishment of AMF colonization (Allsopp and Stock 1995;Jin et al 2009).…”

Section: Amf Colonizationsupporting

confidence: 46%

Influence of arbuscular mycorrhizal colonization on whole‐plant respiration and thermal acclimation of tropical tree seedlings

Fahey

Winter

Slot

et al. 2016

Ecology and Evolution

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Symbiotic arbuscular mycorrhizal fungi (AMF) are ubiquitous in tropical forests. AMF play a role in the forest carbon cycle because they can increase nutrient acquisition and biomass of host plants, but also incur a carbon cost to the plant. Through their interactions with their host plants they have the potential to affect how plants respond to environmental perturbation such as global warming. Our objective was to experimentally determine how plant respiration rates and responses to warmer environment are affected by AMF colonization in seedlings of five tropical tree species at the whole plant level. We evaluated the interaction between AMF colonization and temperature on plant respiration against four possible outcomes; acclimation does or does not occur regardless of AMF, or AMF can increase or decrease respiratory acclimation. Seedlings were inoculated with AMF spores or sterilized inoculum and grown at ambient or elevated nighttime temperature. We measured whole plant and belowground respiration rates, as well as plant growth and biomass allocation. There was an overall increase in whole plant, root, and shoot respiration rate with AMF colonization, whereas temperature acclimation varied among species, showing support for three of the four possible responses. The influence of AMF colonization on growth and allocation also varied among plant species. This study shows that the effect of AMF colonization on acclimation differs among plant species. Given the cosmopolitan nature of AMF and the importance of plant acclimation for predicting climate feedbacks a better understanding of the patterns and mechanisms of acclimation is essential for improving predictions of how climate warming may influence vegetation feedbacks.

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Section: Amf Colonizationsupporting

confidence: 46%

Influence of arbuscular mycorrhizal colonization on whole‐plant respiration and thermal acclimation of tropical tree seedlings

Fahey

Winter

Slot

et al. 2016

Ecology and Evolution

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“…Our results were consistent with the findings of Kitajima (2003) and Jin et al (2009). Seedling growth reductions as a consequence of removal of cotyledons have been reported in soybean (Chin et al, 1977) and Quercus robur L. (Garcia-Cebrian et al, 2003).…”

Section: Effect Of Cotyledon Removal On Growth and Mycorrhizal Dependsupporting

confidence: 93%

“…This could be due to the large seeds of P. pinnata. Jin et al (2009) pointed out that plants with large seeds generally exhibit lower AMF densities. Furthermore, P. pinnata seedlings did not produce fine roots up to 30 days after sowing; it only formed relatively thick roots, which were not colonized by AMF.…”

Section: Colonization Potential Of Amfmentioning

confidence: 99%

The effects of arbuscular mycorrhizal inoculations and cotyledon removal on early seedling growth of Pongamia pinnata

Jha¹,

Kamalvanshi²,

Kumar³

et al. 2014

Turk J Bot

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Pongamia pinnata (L.) Pierre, a fast-growing oil-seed-producing tree legume, has the ability to grow on wastelands. It can be utilized for biofuel plantation on such lands. The preconditioning of young seedlings during the early stage of development with efficient arbuscular mycorrhizal fungi (AMF) confers several benefits enhancing the possibility of their establishment in fields after outplanting from nurseries. However, before recommending these fungi for inoculation, the suitable AMF species must be identified. Therefore, to determine the potential AMF species, 9 purified fungi (isolated from different sites) were tested for their growth promotion activity. The inoculated fungi were not able to increase seedling growth. Some fungi reduced growth, which was attributed to more utilization of carbon by fungal symbiont. Development of fine roots was delayed up to 30 days after sowing and hence their colonization by AMF inoculants. This could be due to the large amount of nutrients stored in cotyledons of large P. pinnata seeds. Removal of cotyledons significantly reduced seedling growth and plants showed some extent of dependency on AMF inoculants. Thus, it was concluded that AMF inoculations should enhance biomass of P. pinnata only after depletion of metabolic reserves in its cotyledons and such mycorrhizal seedlings can be utilized for biofuel plantation.

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“…Our study here showed that AM fungi had a positive effect on E. nutans plant biomass likely via improved uptake of nutrients, water relations, and increasing resistance to pathogens (Newsham et al 1995;Jin et al 2009Jin et al , 2010. Furthermore, AM fungi also increased N and P concentration in shoots and roots of E. nutans.…”

Section: Discussionsupporting

confidence: 53%

Arbuscular mycorrhiza regulate inter-specific competition between a poisonous plant, Ligularia virgaurea, and a co-existing grazing grass, Elymus nutans, in Tibetan Plateau Alpine meadow ecosystem

et al. 2011

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In order to investigate the function of arbuscular mycorrhizae in Tibetan Plateau Alpine meadow ecosystems, experiments were carried out to evaluate the influence of arbuscular mycorrhizal (AM) fungi on inter-specific competition between the poisonous plant, Ligularia virgaurea, and the grazing grass, Elymus nutans, at different relative densities. Our results showed that the biomass of L. virgaurea significantly declined in AM treatments while the biomass of E. nutans increased in our inter-specific competition system. Relative yields and root/shoot ratios of these two species indicated that AM fungi had a significant influence on the growth of L. virgaurea and E. nutans. This implies that arbuscular mycorrhiza do not benefit both plant species equally but rather contribute to the growth of E. nutans more than L. virgaurea. We thus provide evidence that AM fungi could regulate plant interactions and influence the plant community structure in the Tibetan Plateau Alpine meadow ecosystem.

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Seed size influences arbuscular mycorrhizal symbiosis across leguminous host-plant species at the seedling stage

Cited by 11 publications

References 37 publications

Influence of arbuscular mycorrhizal colonization on whole‐plant respiration and thermal acclimation of tropical tree seedlings

Influence of arbuscular mycorrhizal colonization on whole‐plant respiration and thermal acclimation of tropical tree seedlings

The effects of arbuscular mycorrhizal inoculations and cotyledon removal on early seedling growth of Pongamia pinnata

Arbuscular mycorrhiza regulate inter-specific competition between a poisonous plant, Ligularia virgaurea, and a co-existing grazing grass, Elymus nutans, in Tibetan Plateau Alpine meadow ecosystem

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