2001
DOI: 10.1071/bt00086
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Co-occurrence of Proteaceae, laterite and related oligotrophic soils: coincidental associations or causative inter-relationships?

Abstract: C Corresponding author on soil and geomorphological issues; email: wverboom@agric.wa.gov.au D Corresponding author on botanical issues.Abstract. This communication presents the hypothesis that certain Australian lateritic and related oligotrophic soils may have been partly derived biotically from soluble iron-rich complexes generated following secretion of lowmolecular weight organic acids by phosphate-absorbing specialised proteoid (cluster) roots of proteaceous plants. Subsequent precipitation of the iron is… Show more

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Cited by 97 publications
(56 citation statements)
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“…A similar mechanism operates for microbial siderophores (Reichard et al 2007). Pate et al (2001) noted a close association of species belonging to the Proteaceae and lateritic soils. As discussed above, almost without exception, species of the Proteaceae produce proteoid root clusters, which release vast amounts of carboxylates (Shane and Lambers 2005b).…”
Section: Root-induced Physical Breakdown Of Rocks and Consequences Fomentioning
confidence: 97%
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“…A similar mechanism operates for microbial siderophores (Reichard et al 2007). Pate et al (2001) noted a close association of species belonging to the Proteaceae and lateritic soils. As discussed above, almost without exception, species of the Proteaceae produce proteoid root clusters, which release vast amounts of carboxylates (Shane and Lambers 2005b).…”
Section: Root-induced Physical Breakdown Of Rocks and Consequences Fomentioning
confidence: 97%
“…This is certainly linked with the soil being the greatest reservoir of biodiversity on the planet (Crawford et al 2005). The central and positive role that higher plants have played to improve and maintain the Earth's terrestrial ecosystems in this favourable state, including via a number of rhizosphere processes, needs to be recognised, as stressed by Pate et al (2001) and Verboom and Pate (2006a). From a global perspective, Schwartzman and Volk (1989) emphasised the role of higher plants in the habitability of Earth.…”
Section: Root-induced Physical Breakdown Of Rocks and Consequences Fomentioning
confidence: 97%
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“…Certainly the dominance of laterite soils by Proteaceae, versus the greater abundance of Myrtaceae on the grey sands, suggests some difference in Ôstrat-egyÕ of plants on the two soils. Interestingly, Pate et al (2001) suggested that Proteaceae species might contribute causally to development of laterite, rather than simply showing a preference for these soils. Even the dolerite soil may provide lower water availability to understorey shrubs than suggested by its clay content, water holding capacity and depth, since the eucalypt overstorey may take up relatively large volumes of water in summer (Lamont, 1985).…”
Section: Variation In Leaf Mechanics On Contrasting Soilsmentioning
confidence: 97%
“…Intriguingly, such adaptations have been hypothesised as phytotaria-agents of soil bioengineering leading to 'the formation of silicon-or ironbased linings of vertical channels and pores, binding of sand on roots, generation of organically derived hydrophobicity, development of clay-based hardpans and texture-contrast seals, precipitation of silcrete, calcrete and ferricrete pavements, effective accessing and conservation of P resources, including mining by microbes and the biological cycling of Si and Al via plants and micro-organisms' which create phytotaria …'the collective outcomes of the above biotic influences in construction and maintenance of niches peculiar to specific vegetation types (Verboom and Pate 2006a, pg 71; see also Pate et al 2001;Pate 2003, 2006b;Pate and Verboom 2009). Thus, plants with traits conducive to long-term persistence in OCBILs have modified their edaphic environment to further enhance their persistence and keep competitors at bay.…”
Section: Nutritional and Other Biological Specialisationmentioning
confidence: 98%