The Groups > Professor Zed Rengel
 

Professor Zed Rengel
Deputy Head of School
Soil Science and Plant Nutrition,
School of Earth and geographical Sciences,
University of Western Australia,
35 Stirling Highway, Crawley WA 6009  

Personal Website Address: http://www.agric.uwa.edu.au/old/soils/nuts/home.html
Email address: zrengel@agric.uwa.edu.au

Research Aims
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The Big Question

  • To understand cycling of nutrients and toxic ions in the soil/plant/human continuum

The Short-term Goals

  • Elucidate the role of intracellular Ca 2+ homeostasis in Al toxicity
  • Characterise adaptation of native ecosystems to saline and waterlogged land
  • Elucidate the interactions between N and S nutrition and oil accumulation in canola seed
  • Determine the kinetics and regulation of nutrient release during stubble de composition
Group (Laboratory) Members and areas of research
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  • Zed Rengel
  • Dr Olga Babourina (Al toxicity, intracellular Ca 2+ , measuring ion fluxes across the plasma membrane using MIFE)
  • Dr Emmanuel Mapfumo (ecology and modelling of native vegetation on saline and waterlogged land)
  • Dr Bhupinderpal Singh (nutrient cycling from stubble)
  • Dr Zlatko Svecnjak (nitrogen efficiency of canola)
  • Dr Xin Chengsong (salinity tolerance of puccinellia species)
  • Ms Lorraine Osborne (crop nutrition)
  • Mr Paul Damon (potassium cycling in the farming systems)
  • Mr Mark Gherardi (manganese nutrition of lucerne growing on bauxite residue)
  • Ms Mieke Quaghebeur (arsenic toxicity and phosphorus nutrition of native and crop plants)
  • Ms Sommer Jenkins (ecological zonation of puccinelia and tall wheat grass)
  • Mr Kosta Voltchanskii (ecology of melaleuca species on saline and waterlogged land)
  • Ms Nurul Aini (physiology of salinity and waterlogging tolerance in melaleuca species)
  • Mr Liangzuo Shu (control of cluster root development in white lupin)
  • Ms Tatjana Balint (genotypic differences in nitrogen and sulphur efficiency among canola germplasm)
  • Mr Shane Collins (factors controlling decomposition of crop residues)
  • Mr Bart McGann (ammonium toxicity to canola)
  • Mr Behzad Sadeghzadeh (molecular markers for breeding wheat for tolerance to zinc-deficient soils)
Funding
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Currently Active

  • 2004-2005 Molecular mechanisms governing the role of calcium in aluminium toxicity and tolerance in plants (ZR & H Matsumoto); ARC IREX, 43,800

  • 2004 Role of H + -ATPase in the aluminium toxicity syndrome (ZR); Alexander von Humboldt Foundation, Bonn , Germany ; $35,000

  • 2003-2006 Role of nitrogen and sulphur nutrition in determining quantity and quality of oil in canola seed (ZR & DG Allen); ARC; Chemistry Centre WA , Perth ; and Department of Ag WA , Perth ; $564,600

  • 2003-2005 Role of rhizosphere microorganisms in growth of plants in soils with low P availability (P Marschner & ZR); ARC, $271,000

  • 2003-2005 Role of intracellular calcium homeostasis and aluminium transport across the plasma membrane in aluminium toxicity to plants (ZR); ARC, $212,000

  • 2002-2007 Optimising potassium cycling in soils and crops for improved grain production in WA (ZR); Grains Research and Development Corporation (GRDC), $498,100

  • 2002-2005 Species zonation and floristic composition and functioning of ecosystems in areas of primary and secondary salinity in western, southern and eastern Australia (ZR); CRC Plant-Based Management of Dryland Salinity, Perth; 838,000

  • 2002-2005 Modelling gradients of nutrient availability in no-till agriculture (ZR); GRDC, $116,000

  • 2002-2004 Development of innovative technologies for bioremediation of degrading soil-water ecosystem in the Tai Lake catchment - A case study of the Mo Gan Hu subcatchment, China (ZR); Australia-China Special Fund for Scientific and Technological Cooperation; $29,700

  • 2002-2004 Role of stubble management in improving soil fertility (ZR & B. Bowden); ARC, Canberra , and Department of Ag WA , Perth ; $493,500

Applications Submitted or planned

Techniques in the Laboratory
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Currently Active

  • Measuring ion fluxes across the plasma membrane (MIFE)
  • Confocal microscopy
  • Imaging cytosolic Ca 2+
  • ICP-MS for determining nutrient content in plant tissue
  • HPLC-ICP-MS for speciation of arsenic in plant tissues
  • Fractionation of decomposing organic matter
  • Ecophysiological measurements related to salinity and waterlogging
  • Soil chemical analyses

In Development

  • nanoSIMS to measure Al fluxes across the plasma membrane
  • analyses of quality of oil in canola seed
Main areas of Expertise
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Top Three Areas of Knowledge

  1. Aluminium and heavy metal toxicity
  2. Genotypic differences in nutrient uptake and utilisation
  3. Biology and chemistry of rhizosphere

Top Three Technical Skills

  1. Sitting in front of computer, getting grants and writing papers
  2. Intracellular calcium imaging and confocal microscopy
  3. Nutrient analyses by ICP-AES and ICP-MS
A statement on your most significant contributions to this research field
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I have always been fascinated by the dynamics of processes happening in the soil-plant environment. Within that context, I have tackled quite a few different research topics and have been to many labs around the world over time. I was also fortunate to be surrounded by very capable postdocs, research officers and postgraduate students who made it possible to get where I am now.

Perhaps, my most important contributions were in the field of Al toxicity. In 1992, I published four papers developing an initial hypothesis (now a theory) of linking Al toxicity and alteration of the cellular calcium (Ca 2+ ) homeostasis. Since then, a number of leading world labs (eg. Cornell Univ, USA; Univ British Columbia, Canada; Univ Hannover, Germany; Okayama Univ, Japan, etc.) as well as my own lab have repeatedly confirmed the theory. I also led the research team which developed the new method of loading fluorescent Ca-specific dyes into the cytosol of intact root cells, now the method of choice for a range of plant cell types.

I was inspired by Rob Reid's work on Chara (physically separating cell wall and the cytoplasm) and thought it might work for measuring Al fluxes across the plasma membrane by overcoming the problem of strong Al binding in the cell wall. Indeed, we showed that almost all Al remaining in the cell after desorption was situated in the cell wall. We then produced the first two reliable reports ever published on measuring transport of Al across the plasma membrane of intact plant cells within several minutes of exposure using radioactive isotope 26 Al and accelerated mass spectrometry.

Based on the Al work, Zed wrote two invited Tansley reviews for New Phytologist and edited two books for Marcel Dekker ( Handbook of Plant Growth. pH as a Master Variable and Handbook of Soil Acidity ).

Together with my collaborators, I have elucidated physiological mechanisms of differential efficiency of uptake and utilisation of zinc by wheat genotypes; characterised pathways of zinc and manganese loading into developing wheat genotypes; developed a new method of arsenic speciation in plant tissues; implemented a method to overcome nutritional problems in pasture growing on bauxite residue, developed the dynamic simulation model of root growth and nutrient uptake, developed a method to grow plants at P concentrations buffered at realistically low levels, etc.

Other evidence of impact and contributions to the field
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Aside from administrative duties as Head of Department, Discipline Chair and the like, I have been teaching plant nutrition, ion toxicity and soil fertility to students in agriculture, horticulture, natural resource management, environmental science and botany.

I am the author/co-author of more than 170 publications in refereed journals and 20 invited book chapters. I edited 4 books and 3 journal special issues.

I have won 68 competitive research grants and was awarded 4 prizes and 22 fellowships (including Humboldt ´ 2, IEAE, OECD, Commonwealth, Japanese STA, etc.) and Visiting Professorships (Cornell, Okayama, KVL Copenhagen), given 17 invited keynote addresses and chaired 19 scientific sessions at international Conferences, and presented invited seminars at 32 Universities and Professional Societies in 14 countries.

I have been the editor of Plant and Soil for 10 years and am currently editor of 2 journals ( Journal of Plant Nutrition , Journal of Crop Production ) and on the Advisory Editorial Board of 4 journals ( Journal of Experimental Botany , Journal of Plant Nutrition and Soil Science, Crop Research, Turkish Journal of Agriculture and Forestry ). I am member of the Australian Research Council College of Experts (Engineering and Environmental Science). I have also served as consultant to various industries, Universities, the Government, and NATO ( Brussels ). I supervised 24 postdoctoral fellows and 22 postgraduate and 35 Honours students.

Publications - Last 5 years
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  • Valizadeh GR, Rengel Z and Rate A W 2003. Response of wheat genotypes efficient in P utilisation and genotypes responsive to P fertilisation to different P banding depths and watering regimes . Aust. J. Agric. Res. 54 , 59-65.

  • Zhang XK and Rengel Z 2003. Soil solution composition in association with the toxicity of banded di-ammonium phosphate to wheat and amelioration by CaCO 3 . Aust. J. Agric. Res . 54 , 183-191.

  • Li L, Tang C, Rengel Z and Zhang F 2003. Chickpea facilitates phosphorus uptake by intercropped wheat from an organic phosphorus source. Plant and Soil 248 , 297-303.

  • Marschner P, Fu Q and Rengel Z 2003. Manganese availability and microbial populations in the rhizosphere of wheat genotypes differing in tolerance to Mn deficiency. J Plant Nutr. Soil Sci. , 166 , 712-718.

  • Quaghebeur M, Rengel Z and Smirk M 2003. Arsenic speciation in terrestrial plant material using microwave-assisted extraction, ion chromatography and inductively plasma mass spectrometry. J. Anal. Atom. Spectrom . 18 , 128-134.

  • Quaghebeur M and Rengel Z 2003. The distribution of arsenate and arsenite in shoots and roots of Holcus lanatus is influenced by arsenic tolerance and arsenate and phosphate supply . Plant Physiol . 132 , 1600-1609.

  • Rengel Z and Zhang WH 2003. Tansley Review. Role of dynamics of intracellular calcium in aluminium toxicity syndrome . New Phytol. 159 , 295-314.

  • Shen J, Li R, Zhang F, Rengel Z and Tang C 2003. Orthogonal polynomial models to describe yield response of rice to nitrogen and phosphorus at different levels of soil fertility. Nutrient Cycl. Agroecosyst. 65 , 243-251.

  • Shen J, Rengel Z , Tang C, Zhang F 2003. Role of phosphorus nutrition in development of cluster roots and release of carboxylates in soil-grown Lupinus albus . Plant and Soil 248 , 199-206.

  • Tang C, Asseng S, Diatloff E and Rengel Z 2003. Modelling yield losses of aluminium-resistant and sensitive wheat due to subsurface soil acidity: Effects of rainfall, liming and nitrogen application. Plant and Soil 254 , 349-360.

  • Tang C, Nuruzzaman M and Rengel Z 2003. Screening wheat genotypes for tolerance to soil acidity. Aust. J. Agric. Res. 54 , 445-452 .

  • Tang C, Rengel Z , Diatloff E and Gazey C 2003. Responses of wheat and barley to liming on a sandy soil with subsoil acidity. Field Crops Res. 80 , 235-244.

  • Dunbabin V, Diggle A and Rengel Z 2003. Is there an optimal root architecture for nitrate capture in leaching environments? Plant Cell Environ. 26 , 835-844.

  • Gherardi M and Rengel Z 2003. Genotypes of lucerne ( Medicago sativa L.) show differential tolerance to manganese deficiency and toxicity when grown in bauxite residue sand. Plant and Soil 249 , 287-296.

  • Gherardi MJ and Rengel Z 2003. Deep placement of manganese fertiliser improves sustainability of lucerne growing on bauxite residue: A glasshouse study. Plant and Soil 257 , 85-95.

  • Gherardi MJ and Rengel Z 2003. Deep banding improves residual effectiveness of manganese fertiliser for bauxite residue revegetation. Aust. J. Soil Res. 41 , 1273-1282.

  • Khan HR, McDonald GK and Rengel Z 2003. Zn fertilization improves water use efficiency, grain yield and seed Zn content in chickpea. Plant and Soil 249 , 389-400.

  • Tang C, Renge l Z , Abrecht D and Tennant D 2002. Aluminium-tolerant wheat uses more water and yields higher than aluminium-sensitive one on a sandy soil with subsurface acidity. Field Crops Res. 78 , 93-103.

  • Teklic T, Vukadinovic V, Loncaric Z, Rengel Z and Dropulic Z 2002. The model for optimizing fertilization of sugar beet, wheat and maize grown on pseudogley soils. J. Plant Nutr. 25 , 1863-1879.

  • Thomas B M and Rengel Z 2002. Di-ammonium phosphate and mono-ammonium phosphate improve canola growth when banded in a P fixing soil compared to triple superphosphate. Aust. J. Agric. Res. 53 , 1211-1218 .

  • Valizadeh G R, Rengel Z and Rate A W 2002. Role of phosphorus fertiliser banding and the ratio of nitrate to ammonium on the uptake of phosphorus and wheat growth: a glasshouse study. Aust. J. Exp. Agric. 42 , 1095-1102.

  • Valizadeh G R, Rengel Z and Rate A W 2002. Wheat genotypes differ in growth and phosphorus uptake when supplied with different sources and rates of phosphorus banded or mixed in soil in pots . Aust. J. Exp. Agric. 42 , 1103-1111.

  • Zhang X-K and Rengel Z 2002. Temporal dynamics of gradients of phosphorus, ammonium, pH, and EC between di-ammonium phosphate band and wheat roots . Aust. J. Agric. Res. 53 , 985-992.

  • Ahn SJ, Sivaguru M, Chung GC, Rengel Z , Matsumoto H 2002. Aluminum-induced growth inhibition is associated with impaired efflux and influx of H + across the plasma membrane into apices of squash ( Cucurbita pepo ). J. Exp. Bot. 53 , 1959-1966.

  • Bolland M D A, Allen D G and Rengel Z 2002. Response of annual pastures to applications of limestone in the high rainfall areas of south-western Australia. Aust. J. Exp. Agric. 42 , 925-937.

  • Dunbabin V M, Diggle A J and Rengel Z 2002. Simulation of field data by a basic three-dimensional model of interactive root growth . Plant and Soil 239 , 39-54.

  • Dunbabin V M, Diggle A J, Rengel Z and Van Hugten R 2002. Modelling the interactions between water and nutrient uptake and root growth . Plant and Soil 239 , 19-38.

  • Fan XH, Tang C and Rengel Z 2002. Nitrate uptake, nitrate reductase distribution and their relations to proton release by five nodulated grain legumes. Ann Bot. 90 , 315-323.

  • Osborne L D and Rengel Z 2002. Genotypic differences in wheat for uptake and utilization of P from iron phosphate. Aust. J. Agric. Res. 53 , 837-844.

  • Osborne L D and Rengel Z 2002. Growth and P uptake by wheat genotypes supplied with phytate as the only P source. Aust. J. Agric. Res. 53 , 845-850.

  • Rengel Z 2002. Chelator EDTA in nutrient solution decreases growth of wheat. J. Plant Nutr . 25 , 1709-1725.

  • Rengel Z 2002. Genetic control of root exudation. Plant and Soil 245 , 59-70.

  • Rengel Z 2002. Breeding for better symbioses. Plant and Soil 245 , 147-162.

  • Sas L, Rengel Z and Tang C 2002. The effect of nitrogen nutrition on cluster root formation and proton extrusion by Lupinus albus . Ann. Bot . 89 , 435-442.

  • Shen J, Zhang F, Chen Q, Rengel Z , Tang C and Song C 2002. Genotypic differences in seed iron content and early responses to iron deficiency in wheat. J. Plant Nutr. 25 , 1631-1643.

  • Feng G, Su Y B, Li X L, Zhang F S, Tang C and Rengel Z 2002. Histochemical visualization of phosphatase released by arbuscular mycorrhizal fungi in soil. J. Plant Nutr . 25 , 969-980.

  • Feng G, Zhang F S, Li X L, Tian C Y, Tang C and Rengel Z 2002. Improved tolerance of maize plants to salt stress by arbuscular mycorrhiza is related to higher accumulation of soluble sugars in roots. Mycorrhiza 12 , 185-190.

  • Feng G, Zhang F S, Li X L, Tang C and Rengel Z 2002. Uptake of nitrogen from indigenous soil pool by cotton plants inoculated with arbuscular mycorrhizal fungi . Commun. Soil Sci. Plant Anal. 33 , 3825-3836.

  • Ma Q, Rengel Z and Kuo J 2002. Aluminium toxicity in rye ( Secale cereale ): root growth and dynamics of cytoplasmic Ca 2+ in intact root tips. Ann. Bot. 89 , 241-244.

  • Osborne L D and Rengel Z 2002. Screening cereals for genotypic variation in efficiency of phosphorus uptake and utilisation. Aust. J. Agric. Res. 53 , 295-303.

  • Bolland M D A, Rengel Z , Paszkudzka-Baizert L and Osborne L D 2001. Responses of subterranean clover and Italian ryegrass to application of lime. Aust. J. Exp. Agric. 41 , 177-185.

  • Diatloff E and Rengel Z 2001. A compilation of simple spectrophotometric techniques for the measurement of nutrient solution composition. J. Plant Nutr. 24 , 75-86.

  • Dunbabin V, Rengel Z , Diggle A 2001. The root growth response to heterogeneous nitrate supply differs for Lupinus angustifolius and Lupinus pilosus . Aust. J. Agric. Res. 52 , 495-503.

  • Dunbabin V, Rengel Z , Diggle A 2001. Lupinus angustifolius has a plastic influx response to heterogeneously supplied nitrate while Lupinus pilosus does not. Aust. J. Agric. Res. 52 , 505-512.

  • Gherardi M and Rengel Z 2001. Bauxite residue sand has the capacity to rapidly decrease availability of added manganese. Plant and Soil 234 , 143-151.

  • Haslett B, Reid R J and Rengel Z 2001. Zinc mobility in wheat: Uptake and distribution of zinc applied to leaves or roots. Ann. Bot . 87 , 379-386.

  • Li L, Sun J, Zhang F, Li X, Yang S and Rengel Z 2001. Wheat/maize or wheat/soybean strip intercropping. I. Yield advantage and interspecific nutrient interactions. Field Crops Res. 71 , 123-137.

  • Li L, Sun J, Zhang F, Li X, Rengel Z and Yang S 2001. Wheat/maize or wheat/soybean strip intercropping. II. Recovery or compensation of maize and soybean after wheat harvesting. Field Crops Res. 71 , 173-181

  • Rengel Z 2001. Genotypic differences in micronutrient use efficiency in crops. Commun. Soil Sci. Plant Anal. 32 , 1163-1186.

  • Roelofs R F R, Rengel Z, Dixon K W, Kuo J, Cawthray G and Lambers H 2001. Exudation of carboxylates in Australian Proteaceae: chemical composition. Plant Cell Environ . 24 , 891-903.

  • Sas L, Rengel Z and Tang C 2001. Excess cation uptake, and extrusion of proton and organic acid anions by Lupinus albus under phosphorus deficiency. Plant Sci . 160 , 1191-1198.

  • Sas L, Ren gel Z and Tang C 2001. Suitability of hydroxyapatite and iron phosphate as P sources for Lupinus albus grown in nutrient solution. Plant and Soil 235 , 159-166.

  • Streeter T C, Rengel Z and Graham R D 2001. Genotypic differences in Zn efficiency of Medicago species. Euphytica 120 , 281-290.

  • Streeter T C, Rengel Z , Neate S M and Graham R D 2001. Zinc fertilisation increases tolerance to Rhizoctonia solani (AG 8) in Medicago truncatula . Plant and Soil 228 , 233-242.

  • Tang C, Hinsinger P, Drevon J J, Jaillard B and Rengel Z 2001. Effect of phosphorus on the growth, symbiotic N 2 fixation and proton release by two bean ( Phaseolus vulgaris ) genotypes. Agronomie 21 , 683-689.

  • Tang C, Diatloff E, Rengel Z and McGann B 2001. Growth response to subsurface soil acidity of wheat genotypes differing in aluminium tolerance. Plant and Soil 236 , 1-10.

  • Zou C, Shen J, Zhang F, Guo S, Rengel Z and Tang C 2001. Impact of nitrogen form on iron uptake and distribution in maize seedlings in solution culture. Plant and Soil 235 , 143-149.

  • Khan H, McDonald G K and Rengel Z 2000. Response of chickpea genotypes to zinc fertilization under field conditions in South Australia and Pakistan. J. Plant Nutr. 23 , 1517-1531.

  • Rengel Z 2000. Ecotypes of Holcus lanatus tolerant to zinc toxicity are also tolerant to zinc deficiency. Ann. Bot. 86 , 1119-1126.

  • Rengel Z and Römheld V 2000. Differential tolerance to Fe and Zn deficiencies in wheat germplasm. Euphytica 113 , 219-225.

  • Rengel Z and Römheld V 2000. Root exudation and Fe uptake and transport in wheat genotypes differing in tolerance to Zn deficiency. Plant and Soil 222 , 25-34 .

  • Tang C, Raphael C, Rengel Z and Bowden J W 2000. Understanding subsoil acidification: Effect of nitrogen transformation and nitrate leaching. Aust. J. Soil Res . 38 , 837-849.

  • Taylor G J, Stephens J L, Hunter D B, Bertsch P M, Elmore D, Rengel Z and Reid R J 2000. Direct measurement of aluminum uptake and distribution in single cells of Chara corallina . Plant Physiol. 123 , 987-996.

  • Zhang X-K and Rengel Z 2000. Role of soil pH, Ca supply and banded P fertilisers in modulating ammonia toxicity to wheat. Aust. J. Agric. Res . 51 , 691-699.

  • Yu Q, Worth C and Rengel Z 1999. Using capillary electrophoresis to measure Cu/ZnSOD concentration in leaves of wheat genotypes differing in tolerance to zinc deficiency. Plant Sci . 143 , 231-239.

  • Zhang W H and Rengel Z 1999. Aluminium induces an increase in cytoplasmic calcium in intact wheat root apical cells. Aust. J. Plant Physiol. 26 , 401-409.

  • Zhang W H, Rengel Z , Kuo J and Yan G 1999. Effects of aluminium on pollen germination and tube growth of Chamelaucium uncinatum . Comparison with other Ca 2+ antagonists. Ann. Bot. 84 , 559-564.

  • Zhang X-K and Rengel Z 1999. Gradients of pH and ammonium and phosphorus concentration between the banded fertilizer and wheat roots. Aust. J. Agric. Res . 50 , 365-373.

  • Yu Q and Rengel Z 1999. Micronutrient deficiency influences plant growth and activities of superoxide dismutases in narrow-leafed lupins. Ann. Bot . 83 , 175-182.

  • Yu Q and Rengel Z 1999. Drought and salinity differentially influence activities of superoxide dismutases in narrow-leafed lupins. Plant Sci . 142 , 1-11.

  • Yu Q and Rengel Z 1999. Waterlogging influences plant growth and activities of superoxide dismutases in narrow-leafed lupin and transgenic tobacco plants. J. Plant Physiol . 155 , 431-438.

  • Yu Q, Osborne L D and Rengel Z 1999. Increased tolerance to Mn deficiency in transgenic tobacco overproducing MnSOD or FeSOD. Ann. Bot . 84 , 543-547.

  • Dong B, Ryan P R, Rengel Z and Delhaize E 1999. Phosphate uptake and expression of transporter genes in Arabidopsis thaliana . Plant Cell Environ. 22 , 1455-1461.

  • Erenoglu B, Römheld V, Cakmak I and Rengel Z 1999. Uptake of zinc by rye, bread wheat and durum wheat cultivars differing in zinc efficiency . Plant and Soil 209 , 245-252.

  • Pearson J N, Rengel Z and Graham R D 1999. Regulation of Zn and Mn transport into developing wheat grains having different Zn or Mn concentration. J. Plant Nutr. 22 , 1141-1152.

  • Rengel Z 1999. Physiological responses of wheat genotypes grown in chelator-buffered nutrient solutions with increasing concentrations of excess HEDTA. Plant and Soil 215 , 193-202.

  • Rengel Z 1999. Zinc deficiency in wheat genotypes grown in conventional and chelator-buffered nutrient solutions. Plant Sci. 143 , 221-230.

Ten career-best publications
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  1. Rengel Z 1992. Role of calcium in aluminium toxicity. New Phytol. 121 , 499-513.

  2. Pearson J N, Rengel Z, Jenner C F and Graham R D 1995. Transport of zinc and manganese to developing wheat grains. Physiol. Plant. 95 , 449-455.

  3. Rengel Z 1996. Tansley Review No. 89. Uptake of aluminium by plant cells. New Phytol. 134 , 389-406.

  4. Rengel Z and Hawkesford M J 1997. Biosynthesis of a 34-kDa polypeptide in the root-cell plasma membrane of Zn-efficient wheat genotype increases upon Zn starvation. Aust. J. Plant Physiol . 24 , 307-315.

  5. Zhang W H, Rengel Z and Kuo J 1998. Determination of intracellular Ca 2+ in cells of intact wheat roots: Loading of acetoxymethyl ester of Fluo-3 under low temperature. Plant J . 15 , 147-151.

  6. Dong B, Ryan P R, Rengel Z and Delhaize E 1999. Phosphate uptake and expression of transporter genes in Arabidopsis thaliana . Plant Cell Environ. 22 , 1455-1461.

  7. Zhang W H and Rengel Z 1999. Aluminium induces an increase in cytoplasmic calcium in intact wheat root apical cells. Aust. J. Plant Physiol. 26 , 401-409.

  8. Taylor G J, Stephens J L, Hunter D B, Bertsch P M, Elmore D, Rengel Z and Reid R J 2000. Direct measurement of aluminum uptake and distribution in single cells of Chara corallina . Plant Physiol. 123 , 987-996.

  9. Roelofs R F R, Rengel Z, Dixon K W, Kuo J, Cawthray G and Lambers H 2001. Exudation of carboxylates in Australian Proteaceae: chemical composition. Plant Cell Environ . 24 , 891-903.

  10. Quaghebeur M, Rengel Z and Smirk M 2003. Arsenic speciation in terrestrial plant material using microwave-assisted extraction, ion chromatography and inductively plasma mass spectrometry. J. Anal. Atom. Spectrom . 18 , 128-134.

 

 

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