Chickpea and white lupin rhizosphere carboxylates vary with soil properties and enhance phosphorus uptake

Veneklaas, Erik J.; Stevens, J. A.; Cawthray, Gregory R.; Turner, Steven; Grigg, Alasdair M.; Lambers, Hans

doi:10.1007/978-94-010-0243-1_15

Cited by 72 publications

(111 citation statements)

References 25 publications

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“…A high degree of variation among species in carboxylate in the rhizosphere has been reported in many studies under different growth medium and duration of experiment. For instance, three chickpea (C. arietinum) cultivars had carboxylate of approximately 50-200 μmol g −1 root dry weight in the rhizosphere (Veneklaas et al 2003). In response to five different P sources, T. aestivum showed the lowest carboxylate in its rhizosphere, with only 13 μmol g −1 root dry weight, while L. cosentinii accumulated 253 μmol g −1 root dry weight (Pearse et al 2007).…”

Section: P Concentrations In Rootsmentioning

confidence: 98%

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Variation in morphological and physiological parameters in herbaceous perennial legumes in response to phosphorus supply

et al. 2009

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Change in morphological and physiological parameters in response to phosphorus (P) supply was studied in 11 perennial herbaceous legume species, six Australian native (Lotus australis, Cullen australasicum, Kennedia prorepens, K. prostrata, Glycine canescens, C. tenax) and five exotic species (Medicago sativa, Lotononis bainesii, Bituminaria bituminosa var albomarginata, Lotus corniculatus, Macroptilium bracteatum). We aimed to identify mechanisms for P acquisition from soil. Plants were grown in sterilised washed river sand; eight levels of P as KH 2 PO 4 ranging from 0 to 384 μg P g −1 soil were applied. Plant growth under low-P conditions strongly correlated with physiological P-use efficiency and/ or P-uptake efficiency. Taking all species together, at 6 μg P g −1 soil there was a good correlation between P uptake and both root surface area and total root length. All species had higher amounts of carboxylates in the rhizosphere under a low level of P application. Six of the 11 species increased the fraction of rhizosphere citrate in response to low P, which was accompanied by a reduction in malonate, except L. corniculatus. In addition, species showed different plasticity in response to P-application levels and different strategies in response to P deficiency. Our results show that many of the 11 species have prospects for low-input agroecosystems based on their high P-uptake and P-use efficiency.

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Section: P Concentrations In Rootsmentioning

confidence: 98%

“…The sand was carefully tipped out of the pots and the root systems gently shaken to remove excess sand. The sand still attached to the roots was defined as rhizosphere soil (Veneklaas et al 2003). The roots were transferred to a beaker containing a known …”

Section: Rhizosphere Carboxylatesmentioning

confidence: 99%

Variation in morphological and physiological parameters in herbaceous perennial legumes in response to phosphorus supply

et al. 2009

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“…For example, white lupin (Lupinus albus L.) increased P uptake of intercropped wheat via chelation of Ca 2+ by citrate exuded from roots and subsequent release of P from Ca-P complexes (Gardner and Boundy 1983;Horst and Waschkies 1987;Cu et al 2005). Secretion of phosphatases and low-molecular-weight carboxylates increases in plants under low-P conditions, and consequently phosphate uptake of the plants increases (Veneklaas et al 2003). Remarkable differences in the levels of acid phosphatase (APase) secretion from roots under P-deficient conditions have been observed in lupin (Tadano et al 1993;Wasaki et al 2003), maize (Yun and Kaeppler 2001) and maize and chickpea (Li et al 2004b).…”

Section: Introductionmentioning

confidence: 97%

Mineral nutrition of wheat, chickpea and lentil as affected by mixed cropping and soil moisture

Güneş

İnal

Adak

et al. 2007

Nutr Cycl Agroecosyst

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Interspecific complementary and competitive interactions on yield and N, P, K, Fe, Zn and Mn nutrition of mixed wheat/chickpea and wheat/lentil grown in a glasshouse under normal and drought conditions, and intercropping of wheat/chickpea in the field under rainfed conditions were investigated. The results of the experiments confirmed that drought significantly decreased the growth and mineral nutrition of all plant species. Individual plant dry weights of wheat, chickpea and lentil in the glasshouse experiment, and vegetative shoot dry weight of intercropped wheat in the field experiment were significantly increased by the associated plant species as compared with their monoculture. Even though there were increases in vegetative shoot dry weight of wheat, biological and seed yield of intercropped wheat and chickpea were decreased due to the lower row number in intercropping. However, the calculated LER (Land Equivalent Ratio) was found to be higher than 1.0 for biological and seed yields, showing that intercropping of wheat and chickpea has an advantage over monoculture. In many cases, the drought · cropping system interaction on the nutrient concentrations of plant species was not significant. Results of the glasshouse study showed that P nutrition of wheat was improved by chickpea and lentil, which might result from increases in leaf acid phosphatase in mixed cropping. The release of Fe(III)-complexing compounds from the roots was higher in the sole wheat and mixed culture than that of monocultured chickpea and lentil. This improves Fe nutrition of wheat and chickpea, but those improvements were not significant. However, Zn and Mn concentrations of mixed cropped chickpea were also increased. Under the field conditions, shoot concentration of P, K, Fe, Zn and Mn in wheat were increased by intercropping. Furthermore, the concentrations of Zn and Mn in chickpea were increased by intercropping while N, P and K concentrations were decreased. In addition, the concentrations of N, P, K and Fe for wheat seeds and of Zn and Mn for chickpea were improved by intercropping. It is concluded that interspecific interaction was complementary and generally facilitated the mineral nutrition of wheat and chickpea species grown in mixed culture. Besides giving a yield advantage, intercropping of chickpea and wheat also had a positive effect on seed mineral composition.

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“…Genes involved in the transport of these nutrients have been identified, and we are beginning to learn when and where these are expressed. We have also gained a much better understanding of the functioning of specialised roots involved in nutrient acquisition, such as the ''proteoid'' or ''cluster'' roots of Proteaceae and Lupinus albus (Lambers et al, 2003;. These cluster roots produce and exude vast amounts of carboxylates.…”

Section: Resource Acquisition and Carbon Metabolismmentioning

confidence: 99%

Root Physiology – from Gene to Function

Lambers

Colmer

2005

Plant Soil

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Chickpea and white lupin rhizosphere carboxylates vary with soil properties and enhance phosphorus uptake

Cited by 72 publications

References 25 publications

Variation in morphological and physiological parameters in herbaceous perennial legumes in response to phosphorus supply

Variation in morphological and physiological parameters in herbaceous perennial legumes in response to phosphorus supply

Mineral nutrition of wheat, chickpea and lentil as affected by mixed cropping and soil moisture

Root Physiology – from Gene to Function

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