scholarly journals Sugar signalling mediates cluster root formation and phosphorus starvation-induced gene expression in white lupin

2008 ◽  
Vol 59 (10) ◽  
pp. 2749-2756 ◽  
Author(s):  
K. Zhou ◽  
M. Yamagishi ◽  
M. Osaki ◽  
K. Masuda
Keyword(s):  
Gene Expression ◽  
Root Formation ◽  
White Lupin ◽  
Phosphorus Starvation ◽  
Cluster Root ◽  
Sugar Signalling

Root-derived auxin contributes to the phosphorus-deficiency-induced cluster-root formation in white lupin (Lupinus albus)

2012 ◽  
Vol 148 (4) ◽  
pp. 481-489 ◽  
Author(s):  
Zhi Bin Meng ◽  
Xue Di You ◽  
Dong Suo ◽  
Yun Long Chen ◽  
Caixian Tang ◽  
...  
Keyword(s):  
Root Formation ◽  
Phosphorus Deficiency ◽  
Lupinus Albus ◽  
White Lupin ◽  
Cluster Root

A re-assessment of sucrose signaling involved in cluster-root formation and function in phosphate-deficient white lupin (Lupinus albus)

2015 ◽  
Vol 154 (3) ◽  
pp. 407-419 ◽  
Author(s):  
Zhengrui Wang ◽  
Jianbo Shen ◽  
Uwe Ludewig ◽  
Günter Neumann
Keyword(s):  
Root Formation ◽  
Lupinus Albus ◽  
White Lupin ◽  
Cluster Root ◽  
And Function

scholarly journals Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots

Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 302
Author(s):  
Miguel A. Quiñones ◽  
Susana Fajardo ◽  
Mercedes Fernández-Pascual ◽  
M. Mercedes Lucas ◽  
José J. Pueyo
Keyword(s):  
Contaminated Soils ◽  
Lupinus Albus ◽  
White Lupin ◽  
Cluster Roots ◽  
Cluster Root ◽  
Bioaccumulation Factors ◽  
Aerial Parts ◽  
High Mercury ◽  
Lupinus Albus L ◽  
Hg Accumulation

Two white lupin (Lupinus albus L.) cultivars were tested for their capacity to accumulate mercury when grown in Hg-contaminated soils. Plants inoculated with a Bradyrhizobium canariense Hg-tolerant strain or non-inoculated were grown in two highly Hg-contaminated soils. All plants were nodulated and presented a large number of cluster roots. They accumulated up to 600 μg Hg g−1 DW in nodules, 1400 μg Hg g−1 DW in roots and 2550 μg Hg g−1 DW in cluster roots. Soil, and not cultivar or inoculation, was accountable for statistically significant differences. No Hg translocation to leaves or seeds took place. Inoculated L. albus cv. G1 plants were grown hydroponically under cluster root-promoting conditions in the presence of Hg. They accumulated about 500 μg Hg g−1 DW in nodules and roots and up to 1300 μg Hg g−1 DW in cluster roots. No translocation to the aerial parts occurred. Bioaccumulation factors were also extremely high, especially in soils and particularly in cluster roots. To our knowledge, Hg accumulation in cluster roots has not been reported to date. Our results suggest that inoculated white lupin might represent a powerful phytoremediation tool through rhizosequestration of Hg in contaminated soils. Potential uptake and immobilization mechanisms are discussed.

scholarly journals Update on White Lupin Cluster Root Acclimation to Phosphorus Deficiency Update on Lupin Cluster Roots

2011 ◽  
Vol 156 (3) ◽  
pp. 1025-1032 ◽  
Author(s):  
Lingyun Cheng ◽  
Bruna Bucciarelli ◽  
Jianbo Shen ◽  
Deborah Allan ◽  
Carroll P. Vance
Keyword(s):  
Phosphorus Deficiency ◽  
White Lupin ◽  
Cluster Roots ◽  
Cluster Root

Cluster root formation by Gymnostoma papuanum (Casuarinaceae) in relation to aeration and mineral nutrient availability in water culture

1990 ◽  
Vol 68 (12) ◽  
pp. 2564-2570 ◽  
Author(s):  
Suzanne Racette ◽  
Isabelle Louis ◽  
John G. Torrey
Keyword(s):  
Root Growth ◽  
Root Formation ◽  
Phosphorus Deficiency ◽  
Lateral Roots ◽  
Critical Factor ◽  
Mineral Nutrient ◽  
Cluster Roots ◽  
Phosphorus Level ◽  
Water Culture ◽  
Cluster Root

The term cluster root is used to refer to a dense cluster of determinate lateral roots (rootlets), in preference to the terms proteoid root and proteoid-like root used by other authors. Cluster roots are often formed by the actinorhizal plant Gymnostoma papuanum. In water culture, cluster root formation by G. papuanum was influenced by aeration, phosphorus level, and nitrogen source. Aeration was a critical factor, with nonaerated rooted cuttings having far fewer cluster roots than aerated ones. Phosphorus deficiency was the single nutrient deficiency that led to increased cluster root formation. Seedlings, grown under conditions of either low (0.8 mg∙L−1) or no phosphorus, responded by devoting a greater portion of root growth to the production of cluster roots, with no overall reduction in root growth for 6 weeks. The response to varying phosphorus level was modified by providing nitrogen in different forms. Supplying nitrogen as ammonium resulted in low levels of cluster root formation. Supplying nitrate to nodulated seedlings led to an increase in cluster root formation in comparison with plants that depended solely upon dinitrogen fixation by Frankia. Greatest cluster root formation occurred on plants grown in aerated water cultures supplied with nitrate and with little or no phosphorus. Key words: Gymnostoma papuanum, cluster roots, proteoid roots, phosphorus deficiency.

scholarly journals Gene expression profiling during adventitious root formation in carnation stem cuttings

BMC Genomics ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Carlos Villacorta-Martín ◽  
Ana Belén Sánchez-García ◽  
Joan Villanova ◽  
Antonio Cano ◽  
Miranda van de Rhee ◽  
...  
Keyword(s):  
Gene Expression ◽  
Gene Expression Profiling ◽  
Expression Profiling ◽  
Adventitious Root ◽  
Root Formation ◽  
Adventitious Root Formation ◽  
Stem Cuttings

Differential gene expression in proteoid root clusters of white lupin (Lupinus albus )

2002 ◽  
Vol 116 (1) ◽  
pp. 28-36 ◽  
Author(s):  
Enrique Peñaloza ◽  
Ana Gutierrez ◽  
José Martínez ◽  
Gastón Muñoz ◽  
León A. Bravo ◽  
...  
Keyword(s):  
Gene Expression ◽  
Differential Gene Expression ◽  
Lupinus Albus ◽  
White Lupin ◽  
Differential Gene ◽  
Proteoid Root
Sign in / Sign up

Export Citation Format

Share Document