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

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

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 Effect of phosphorus supply on the formation and function of proteoid roots of white lupin ( Lupinus albus L.)

1998 ◽  
Vol 21 (5) ◽  
pp. 467-478 ◽  
Author(s):  
G. Keerthisinghe ◽  
P. J. Hocking ◽  
P. R. Ryan ◽  
E. Delhaize
Keyword(s):  
Lupinus Albus ◽  
White Lupin ◽  
Proteoid Roots ◽  
And Function ◽  
Lupinus Albus L

Impact of phosphorus mineral source (Al–P or Fe–P) and pH on cluster-root formation and carboxylate exudation in Lupinus albus L.

2008 ◽  
Vol 304 (1-2) ◽  
pp. 169-178 ◽  
Author(s):  
M. W. Shane ◽  
H. Lambers ◽  
G. R. Cawthray ◽  
A. J. Kuhn ◽  
U. Schurr
Keyword(s):  
Root Formation ◽  
Lupinus Albus ◽  
Cluster Root ◽  
Carboxylate Exudation ◽  
Lupinus Albus L

Hormonal interactions during cluster-root development in phosphate-deficient white lupin ( Lupinus albus L.)

2015 ◽  
Vol 177 ◽  
pp. 74-82 ◽  
Author(s):  
Zhengrui Wang ◽  
A.B.M. Moshiur Rahman ◽  
Guoying Wang ◽  
Uwe Ludewig ◽  
Jianbo Shen ◽  
...  
Keyword(s):  
Root Development ◽  
Lupinus Albus ◽  
White Lupin ◽  
Cluster Root ◽  
Lupinus Albus L ◽  
Hormonal Interactions

Is there a critical level of shoot phosphorus concentration for cluster-root formation in Lupinus albus?

2008 ◽  
Vol 35 (4) ◽  
pp. 328 ◽  
Author(s):  
Haigang Li ◽  
Jianbo Shen ◽  
Fusuo Zhang ◽  
Caixian Tang ◽  
Hans Lambers
Keyword(s):  
Organic Matter ◽  
Root Formation ◽  
Critical Level ◽  
Lupinus Albus ◽  
White Lupin ◽  
Cluster Roots ◽  
Proton Release ◽  
P Concentration ◽  
Citrate Exudation ◽  
P Supply

This study examined the effects of localised phosphorus (P) supply on cluster-root formation and citrate exudation in white lupin (Lupinus albus L. cv. Kiev Mutant). White lupin plants were grown in nutrient solutions with a range of P supplies in a split-root system with one root half deprived of P and the other root supplied with 0, 2, 5, 8, 10 or 75 μm P. Plants were also grown in soil with or without organic matter added to the top layer. The proportion of cluster roots as a percentage of the total root biomass decreased similarly on both root halves with increasing P supply in the hydroponic experiments. More than 18% of the P taken up by the P-supplied root halves was incorporated into the P-deprived halves. Irrespective of the P supply or organic matter addition in the experiments, the proportion of cluster roots and the rate of citrate exudation decreased sharply with increasing P concentration in the shoots up to a critical level of 2–3 mg P g–1 dry weight. In contrast, the rate of proton release was higher in P-deprived root halves than in P-supplied ones. The formation of cluster roots is regulated by shoot P concentration with a critical level of 2–3 mg g–1. Citrate exudation is predominantly governed by shoot P status, whereas proton release strongly responds to local P supply.

Sign in / Sign up

Export Citation Format

Share Document