Maize root system growth and development as influenced by phosphorus deficiency

Mollier, Alain; Pellerin, Sylvain

doi:10.1093/jxb/50.333.487

Cited by 220 publications

(120 citation statements)

References 38 publications

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“…In barley, deficiencies in N, P or K all led to a marked decrease in the lengths of both first-and second-order lateral roots, while seminal root length was unaffected (Drew, 1975). A similar response to P deficiency was noted in maize (Zea mays) (Mollier and Pellerin, 1999). Note that it seems to be a general rule in plants that primary root growth is much less sensitive to nutritional effects than is the growth of secondary or higher-order roots…”

Section: Root Growth and Branchingsupporting

confidence: 60%

The nutritional control of root development

Forde

Lorenzo

2002

Interactions in the Root Environment: An Integrated Approach

214

252

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Root development is remarkably sensitive to variations in the supply and distribution of inorganic nutrients in the soil. Here we review examples of the ways in which nutrients such as N, P, K and Fe can affect developmental processes such as root branching, root hair production, root diameter, root growth angle, nodulation and proteoid root formation. The nutrient supply can affect root development either directly, as a result of changes in the external concentration of the nutrient, or indirectly through changes in the internal nutrient status of the plant. The direct pathway results in developmental responses that are localized to the part of the root exposed to the nutrient supply; the indirect pathway produces systemic responses and seems to depend on long-distance signals arising in the shoot. We propose the term 'trophomorphogenesis' to describe the changes in plant morphology that arise from variations in the availability or distribution of nutrients in the environment. We discuss what is currently known about the mechanisms of external and internal nutrient sensing, the possible nature of the long-distance signals and the role of hormones in the trophomorphogenic response.Abbreviations: ABA, abscisic acid; NR, nitrate reductase; P i , inorganic phosphate

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Section: Root Growth and Branchingsupporting

confidence: 60%

The nutritional control of root development

Forde

Lorenzo

2002

Interactions in the Root Environment: An Integrated Approach

214

252

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“…Theoretically phosphorus acquisition would be optimized if roots had reduced lateral branching in low-phosphorus soil domains, permitting greater axial elongation, and greater lateral branching in high-phosphorus patches. This is evident in bean and maize, in which low phosphorus reduces lateral rooting more than it reduces axial elongation (Borch et al, 1999;Mollier and Pellerin, 1999). In young plants with few axial roots, lateral branching may increase exploration of soil domains not reached by axial roots.…”

Section: Lateral Branchingmentioning

confidence: 99%

Root Phenes for Enhanced Soil Exploration and Phosphorus Acquisition: Tools for Future Crops

2011

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“…For instance, limited P supply inhibits leaf growth which consequently results in overall plant growth reduction (Fredeen et al, 1989;Jeschke et al, 1996;Nielsen et al, 1998;Rodríguez et al, 1998;Mollier and Pellerin 1999;Chiera et al, 2002). These reductions are the consequence of lower rates of leaf initiation, less dividing cells, as well as reduced leaf expansion (Rodríguez et al, 1998;Rodrıǵuez et al, 2000;Plénet et al, 2000;Chiera et al, 2002;Assuero et al, 2004) (Fig.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Physiological and molecular alterations in plants exposed to high [CO2] under phosphorus stress

Pandey

Zinta

AbdElgawad

et al. 2015

Biotechnology Advances

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Physiological and molecular alterations in plants exposed to high [CO 2 ] under phosphorus stress, Biotechnology Advances (2015Advances ( ), doi: 10.1016Advances ( /j.biotechadv.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. This is the author's version of a work that was accepted for publication in Biotechnology Advances (Ed. Elsevier). Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Pandey, Renu et al. Fax: +91-11-25846420] has increased substantially in recent decades and will continue to do so, whereas the availability of phosphorus (P) is limited and unlikely to increase in the future. P is a non-renewable resource, and it is essential to every form of life. P is a key plant nutrient controlling the responsiveness of photosynthesis to [CO 2 ]. Increases in [CO 2 ] typically results in increased biomass through stimulation of net photosynthesis, and hence enhance the demand for P uptake. However, most soils contain low concentrations of available P.Therefore, low P is one of the major growth-limiting factors for plants in many agricultural and natural ecosystems. The adaptive responses of plants to [CO 2 ] and P availability encompass alterations at morphological, physiological, biochemical and molecular levels. In general low P reduces growth, whereas high [CO 2 ] enhances it particularly in C 3 plants. Photosynthetic capacity is often enhanced under high [CO

show abstract

Maize root system growth and development as influenced by phosphorus deficiency

Cited by 220 publications

References 38 publications

The nutritional control of root development

The nutritional control of root development

Root Phenes for Enhanced Soil Exploration and Phosphorus Acquisition: Tools for Future Crops

Physiological and molecular alterations in plants exposed to high [CO2] under phosphorus stress

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