Acclimation of white lupin to phosphorus deficiency involves enhanced expression of genes related to organic acid metabolism

Uhde‐Stone, Claudia; Gilbert, Glena A.; Johnson, Jane M. F.; Litjens, Ralph; Zinn, Kelly E.; Temple, Stephen J.; Vance, Carroll P.; Allan, Deborah L.

doi:10.1007/978-94-010-0243-1_8

Cited by 19 publications

(28 citation statements)

References 59 publications

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“…Uhde-Stone et al (2003) have shown, that enhanced in situ expression of PEPC and MDH in P-deficient L. albus was localised in the cortical cells. Uhde-Stone et al (2003) have shown, that enhanced in situ expression of PEPC and MDH in P-deficient L. albus was localised in the cortical cells.…”

Section: Cluster-root Metabolismmentioning

confidence: 86%

“…The evidence for metabolic specialisation in cluster roots of L. albus (Johnston et al, 1994(Johnston et al, , 1996aKeerthisinghe et al, 1998;Watt and Evans, 1999a) supports at least three views: (1) enzymes (activities and transcript levels) involved in carbon metabolism (e.g., PEPC (Johnston et al, 1994, 1996aUhde-Stone et al, 2003;Vance et al, 2003) and PEP-phosphatase (Kihara et al, 2003)) are upregulated during citrate exudation from cluster roots; (2) enzymes involved in carbon metabolism are down-regulated just before the peak in citrate exudation from cluster roots (e.g., aconitase (Kihara et al, 2003;McCluskey et al, 2004;), isocitrate dehydrogenase and pyruvate kinase (Kihara et al, 2003)); (3) transport, rather than net synthesis, is the rate-determining step for exudation of carboxylates (e.g., citrate (Watt and Evans, 1999a, b)). …”

Section: Cluster-root Metabolismmentioning

confidence: 98%

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Cluster Roots: A Curiosity in Context

2005

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Cluster roots are an adaptation for nutrient acquisition from nutrient-poor soils. They develop on root systems of a range of species belonging to a number of different families (e.g., Proteaceae, Casuarinaceae, Fabaceae and Myricaceae) and are also found on root systems of some crop species (e.g., Lupinus albus, Macadamia integrifolia and Cucurbita pepo). Their morphology is variable but typically, large numbers of determinate branch roots develop over very short distances of main root axes. Root clusters are ephemeral, and continually replaced by extension of the main root axes. Carboxylates are released from cluster roots at very fast rates for only a few days during a brief developmental window termed an 'exudative burst'. Most of the studies of cluster-root metabolism have been carried out using the crop plant L. albus, but results on native plants have provided important additional information on carbon metabolism and exudate composition. Cluster-root forming species are generally non-mycorrhizal, and rely upon their specialised roots for the acquisition of phosphorus and other scarcely available nutrients. Phosphorus is a key plant nutrient for altering cluster-root formation, but their formation is also influenced by N and Fe. The initiation and growth of cluster roots is enhanced when plants are grown at a very low phosphate supply (viz. £1 lM P), and cluster-root suppression occurs at relatively higher P supplies. An important feature of some Proteaceae is storage of phosphorus in stem tissues which is associated with the seasonality of cluster-root development and P uptake (winter) and shoot growth (summer), and also maintains low leaf [P]. Some species of Proteaceae develop symptoms of P toxicity at relatively low external P supply. Our findings with Hakea prostrata (Proteaceae) indicate that P-toxicity symptoms result after the capacity of tissues to store P is exceeded. P accumulation in H. prostrata is due to its strongly decreased capacity to down-regulate P uptake when the external P supply is supra-optimal. The present review investigates cluster-root functioning in (1) L. albus (white lupin), the model crop plant for cluster-root studies, and (2) native Proteaceae that have evolved in phosphate-impoverished environments.

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Section: Cluster-root Metabolismmentioning

confidence: 86%

Section: Cluster-root Metabolismmentioning

confidence: 98%

Cluster Roots: A Curiosity in Context

2005

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“…Moreover, the transcriptomic profiling under P-deficiency has revealed an increase in the expression of enzymes involved in C-metabolism, such as SS and MDH, a situation that suggested a high production of C 4 -DCAs presumably destined to acquire more phosphate from sparingly soluble inorganic substrates (Keller et al, 2002;Keller, 2003). Supporting reports were also provided by Uhde-Stone et al (2003) for the proteoid roots of white lupin and Hernández et al (2009) for the nodules of common bean under P-deficient conditions.…”

Section: Molecular Regulation Of N 2 Fixationmentioning

confidence: 92%

Asparagine: an amide of particular distinction in the regulation of symbiotic nitrogen fixation of legumes

Sulieman¹,

Tran²

2012

Critical Reviews in Biotechnology

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“…Abiotic stresses, such as salt or cold (Kumar, Shah, & Dubey, ; Saito et al, ; Yao, Dong, Zhai, You, & Hao, ), nitrogen deficiency (Scheible et al, ), phosphorus deficiency (Lin et al, ; Uhde‐Stone et al, ), iron deficiency (Abadía, López‐Millán, Rombolà, & Abadía, ; López‐Millán, Morales, Abadía, & Abadía, ; Shlizerman, Marsh, Blumwald, & Sadka, ), aluminum toxicity (Chaffai & Marzouk, ; Chaffai, Seybou, Marzouk, & El Ferjani, ), and air CO 2 concentration (Sicher, ), have also been reported to have impact on organic acid accumulation and the expression and activity of the corresponding genes and enzymes, which will not be focused in this review.…”

Section: Organic Acidsmentioning

confidence: 99%

Regulation of phytochemicals in fruits and berries by environmental variation—Sugars and organic acids

et al. 2018

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Sugars and organic acids are important phytochemicals contributing to the nutrition and sensory properties of fruits and berries. Their contents are closely correlated to the genetic background of plants as well as to the environmental conditions during growth. This review focuses on the recent researches on the metabolism of these compounds in fruits and berries in response to the variation of environmental conditions, including temperature, radiation, and water supply. A great deal of investigations indicates that the influence of environmental factors on the composition of fruits/berries depended largely on the genetic background. Moreover, the metabolic regulation in response to environmental changes also varies between different plant developmental stages. Nevertheless, some general trends, like the positive correlation between light intensity and sugar content, were observed in most investigations. In grapes (Vitis vinifera L.), the content of malic acid always decreases as light intensity increases, and as the water supply decreases. Practical applications The contents of sugars and organic acids, and especially their relative ratio, are important indicators determining the taste and quality of fruits and fruit products. In this review, we summarized the investigations carried out on the regulation of these sensory contributing primary metabolites in fruits and berries in relation to the variation of environmental conditions. It was indicated that various factors, such as plant genotype, growing period, and interaction between environmental factors, might contribute to the impact of environmental changes on the composition of fruits/berries. The article not only provides comprehensive knowledges in food chemistry and plant physiology but also provide important background knowledge for berry cultivation and breeding, as well as useful guidelines for utilization of fruits and berries in food industry.

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Acclimation of white lupin to phosphorus deficiency involves enhanced expression of genes related to organic acid metabolism

Cited by 19 publications

References 59 publications

Cluster Roots: A Curiosity in Context

Cluster Roots: A Curiosity in Context

Asparagine: an amide of particular distinction in the regulation of symbiotic nitrogen fixation of legumes

Regulation of phytochemicals in fruits and berries by environmental variation—Sugars and organic acids

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