The Potential Role of Mycorrhizae in the Growth and Establishment of Juniperus Seedlings

Bush, J. K.

doi:10.1007/978-0-387-34003-6_6

Cited by 13 publications

(10 citation statements)

References 73 publications

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“…This might be related to the efficiency of P uptake by AMF, which overshadows the influence of the enzymes on P mineralisation and P uptake by plants. In this sense, numerous studies have shown that mycorrhizal roots are more efficient at P uptake than non-mycorrhizal roots (Klironomos, 2003;Bush, 2008).…”

Section: Discussionmentioning

confidence: 98%

The co-existence between DSE and AMF symbionts affects plant P pools through P mineralization and solubilization processes

et al. 2015

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Section: Discussionmentioning

confidence: 98%

The co-existence between DSE and AMF symbionts affects plant P pools through P mineralization and solubilization processes

et al. 2015

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“…Although junipers are believed to associate exclusively with arbuscular mycorrhizal fungi (Bush ), many oaks can associate with both arbuscular and ectomycorrhizal fungi (Southworth , Ibañez et al. ).…”

Section: Discussionmentioning

confidence: 99%

Native tree and shrub canopy facilitates oak seedling regeneration in semiarid woodland

et al. 2020

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Oaks (Quercus spp.) are currently declining worldwide due to a multitude of threats. Woodland management is often heavily focused on thinning and burning nontarget species to reduce competition and promote oak dominance in the overstory. These techniques have typically been developed in temperate regions, such as eastern U.S. forests, but whether they are the most effective strategy for promoting oak regeneration in semiarid woodlands has not been sufficiently examined. We conducted our study on the eastern Edwards Plateau in central Texas, where several oak species are codominant with Ashe juniper (Juniperus ashei) over karst limestone terrane. These juniper‐oak woodlands provide habitat for many endemic species and play an essential role in the maintenance of key aquifers. A history of canopy clearing and a severe drought in 2011 generated patches of living and dead juniper‐oak canopy interspersed with canopy gaps in our study area. In November 2013, we planted 200 shin oak (Quercus sinuata var. breviloba) acorns in each of three habitat treatments, replicated six times: (1) live canopy, (2) dead canopy, and (3) open invasive grassland. We monitored emergence and survival each year, harvesting five seedlings from each replicate in October 2017 to assess shoot height, rooting depth, biomass, ectomycorrhizal colonization, and foliar nutrients. Canopy trees, living or dead, significantly enhanced seedling emergence and survival. Survival was positively associated with increasing Ashe juniper and oak basal area, shrub cover, and soil organic matter, and negatively associated with increasing canopy gap size (complete mortality in gaps >220 m2). Seedling biomass increased significantly in dead and open treatments along with foliar nutrients N, P, and S (dead treatments) or S and Fe (open treatments), whereas ectomycorrhizal colonization and foliar nutrients Ca, Mg, and Mn increased under living canopy. Our findings suggest that oak regeneration in these juniper‐oak woodlands closely resembles that of Mediterranean regions, where canopy facilitates seedling survival. Both living and dead trees and shrubs enhanced oak regeneration, with seedling survival depending on proximity to larger trees, living roots, shrubs, and juniper‐oak canopy. Planting acorns under canopy is an inexpensive, sustainable, and effective restoration practice in drought‐prone ecosystems.

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“…It may involve AM fungi indirectly: mycorrhizal roots may release more root exudates containing soil enzymes because of the larger root system and/or improved nutrition 32 . Nevertheless, a mutualistic association with AM fungi is of particular importance in improving P uptake of the host plant 33 34 , but not of the neighbors. Therefore, Gc inoculation had no significant influences on P acquisition and yield of kangkong compared to the non-inoculated IS treatment.…”

Section: Discussionmentioning

confidence: 99%

Biochar and Glomus caledonium Influence Cd Accumulation of Upland Kangkong (Ipomoea aquatica Forsk.) Intercropped with Alfred Stonecrop (Sedum alfredii Hance)

et al. 2014

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Both biochar application and mycorrhizal inoculation have been proposed to improve plant growth and alter bioaccumulation of toxic metals. A greenhouse pot trial was conducted to investigate growth and Cd accumulation of upland kangkong (Ipomoea aquatica Forsk.) intercropped with Alfred stonecrop (Sedum alfredii Hance) in a Cd-contaminated soil inoculated with Glomus caledonium and/or applied with biochar. Compared with the monocultural control, intercropping with stonecrop (IS) decreased kangkong Cd acquisition via rhizosphere competition, and also decreased kangkong yield. Gc inoculation (+M) accelerated growth and Cd acquisition of stonecrop, and hence resulted in further decreases in kangkong Cd acquisition. Regardless of IS and +M, biochar addition (+B) increased kangkong yield via elevating soil available P, and decreased soil Cd phytoavailability and kangkong Cd concentration via increasing soil pH. Compared with the control, the treatment of IS + M + B had a substantially higher kangkong yield (+25.5%) with a lower Cd concentration (−62.7%). Gc generated additive effects on soil alkalinization and Cd stabilization to biochar, causing lower DTPA-extractable (phytoavailable) Cd concentrations and post-harvest transfer risks.

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The Potential Role of Mycorrhizae in the Growth and Establishment of Juniperus Seedlings

Cited by 13 publications

References 73 publications

The co-existence between DSE and AMF symbionts affects plant P pools through P mineralization and solubilization processes

The co-existence between DSE and AMF symbionts affects plant P pools through P mineralization and solubilization processes

Native tree and shrub canopy facilitates oak seedling regeneration in semiarid woodland

Biochar and Glomus caledonium Influence Cd Accumulation of Upland Kangkong (Ipomoea aquatica Forsk.) Intercropped with Alfred Stonecrop (Sedum alfredii Hance)

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