scholarly journals Boron Tolerance in Barley Is Mediated by Efflux of Boron from the Roots

2004 ◽  
Vol 136 (2) ◽  
pp. 3376-3382 ◽  
Author(s):  
Julie E. Hayes ◽  
Robert J. Reid
Keyword(s):  
Boron Tolerance

scholarly journals Breeding for boron tolerance in lentil (Lens culinaris Medik.) using a high-throughput phenotypic assay and molecular markers

2018 ◽  
Vol 137 (4) ◽  
pp. 492-501 ◽  
Author(s):  
Matthew S. Rodda ◽  
Shimna Sudheesh ◽  
Muhammad Javid ◽  
Dianne Noy ◽  
Annathurai Gnanasambandam ◽  
...  
Keyword(s):  
Molecular Markers ◽  
High Throughput ◽  
Lens Culinaris ◽  
Boron Tolerance ◽  
Phenotypic Assay

Boron tolerance in Australian varieties of wheat and barley

1987 ◽  
pp. 139-151 ◽  
Author(s):  
B. Cartwright ◽  
A. J. Rathjen ◽  
D. H. B. Sparrow ◽  
J. G. Paull ◽  
B. A. Zarcinas
Keyword(s):  
Boron Tolerance

Boron Tolerance in Plants

2020 ◽  
pp. 301-314
Author(s):  
Nader Khadem Moghadam ◽  
Behnam Asgari Lajayer ◽  
Mansour Ghorbanpour
Keyword(s):  
Boron Tolerance

Effects of boron toxicity on root and leaf anatomy in two Citrus species differing in boron tolerance

Trees ◽  
2014 ◽  
Vol 28 (6) ◽  
pp. 1653-1666 ◽  
Author(s):  
Jing-Hao Huang ◽  
Zi-Jian Cai ◽  
Shou-Xing Wen ◽  
Peng Guo ◽  
Xin Ye ◽  
...  
Keyword(s):  
Leaf Anatomy ◽  
Boron Toxicity ◽  
Citrus Species ◽  
Boron Tolerance ◽  
Root And Leaf Anatomy

Mapping and QTL analysis of the barley population Clipper × Sahara

2003 ◽  
Vol 54 (12) ◽  
pp. 1137 ◽  
Author(s):  
A. Karakousis ◽  
A. R. Barr ◽  
J. M. Kretschmer ◽  
S. Manning ◽  
S. P. Jefferies ◽  
...  
Keyword(s):  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Nematode Resistance ◽  
Cyst Nematode ◽  
Doubled Haploid Population ◽  
Plant Type ◽  
Boron Tolerance ◽  
Breeding Programs ◽  
Haploid Population ◽  
Barley Population

A genetic linkage map consisting of 211 molecular markers has been generated using a doubled-haploid population derived from a cross between the Australian barley variety Clipper and the Algerian landrace Sahara 3771. The map was used in subsequent trait mapping studies to locate the genes conferring boron tolerance and cereal cyst nematode resistance from Sahara 3371 and to map several plant type and developmental genes. Closely linked markers to the trait loci have been identified and are now being widely implemented in Australian breeding programs.

Boron Tolerance in Wheat Varieties 7

2014 ◽  
Vol 27 (2) ◽  
pp. 322
Author(s):  
S K Sharma ◽  
Ashwani Kumar ◽  
T L Setter ◽  
Monika Singh ◽  
Charu Lata ◽  
...  
Keyword(s):  
Boron Tolerance ◽  
Wheat Varieties

Physiological mechanisms of tolerance to high boron concentration in Brassica rapa

2006 ◽  
Vol 33 (10) ◽  
pp. 973 ◽  
Author(s):  
Sukhjiwan Kaur ◽  
Marc E. Nicolas ◽  
Rebecca Ford ◽  
Robert M. Norton ◽  
Paul W. J. Taylor
Keyword(s):  
Brassica Rapa ◽  
Cell Walls ◽  
Boron Concentration ◽  
Leaf Tissue ◽  
Boron Uptake ◽  
Tolerance Mechanism ◽  
Physiological Mechanisms ◽  
Boron Tolerance ◽  
High Boron ◽  
Sensitive Genotype

Tolerance to high boron concentration in Brassica rapa was primarily due to low net boron uptake by the roots. However, in the two tolerant genotypes, 39–43% of boron uptake was retained in the tap roots, which limited boron accumulation in the leaves, and also contributed to boron tolerance. In the sensitive genotype, 99% of the increase in boron uptake caused by high soil boron accumulated in the leaves, particularly in the leaf margins. Despite higher transpiration rates, lower net boron uptake occurred in the tolerant genotypes. This result cannot be explained by passive boron uptake alone. Active boron efflux was probably responsible for differences in net boron uptake among tolerant and sensitive genotypes. Boron concentration was much lower in the cell walls than in the cell sap of leaves, indicating that storage of boron in the cell walls was not a tolerance mechanism. Despite high boron concentrations in the leaf symplasm, rates of photosynthesis, transpiration and growth were almost unaffected in the tolerant genotypes. The results demonstrate that boron tolerance in Brassica rapa involves boron exclusion at the root level, boron partitioning away from leaves and, as boron accumulates in leaves despite the first two mechanisms, boron tolerance of the leaf tissue itself.

Mechanism of boron tolerance in soil bacteria

2010 ◽  
Vol 56 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Iftikhar Ahmed ◽  
Toru Fujiwara
Keyword(s):  
Soil Bacteria ◽  
Gene Sequencing ◽  
16S Rrna Gene Sequencing ◽  
Soil Samples ◽  
Rrna Gene ◽  
Bacterial Strains ◽  
Tolerance Mechanisms ◽  
Boron Tolerance ◽  
Rrna Gene Sequencing ◽  
Comparative Phylogenetic Analysis

Boron (B) is toxic to living cells at levels above a certain threshold. We isolated several B-tolerant bacterial strains from soil samples and studied them for possible mechanisms of B tolerance. 16S rRNA gene sequencing and comparative phylogenetic analysis demonstrated that the isolates belong to the following 6 genera: Arthrobacter , Rhodococcus , Lysinibacillus , Algoriphagus , Gracilibacillus , and Bacillus . These isolates exhibited B-tolerance levels of 80, 100, 150, 300, 450, and 450 mmol/L, respectively, whilst maintaining a significantly lower intracellular B concentration than in the medium. Statistical analysis showed a negative correlation between the protoplasmic B concentration and the degree of tolerance to a high external B concentration. The kinetic assays suggest that the high B efflux and (or) exclusion are the tolerance mechanisms against a high external B concentration in the isolated bacteria.

Boron Tolerance of Tall Wheatgrass 1

1969 ◽  
Vol 61 (3) ◽  
pp. 445-447 ◽  
Author(s):  
Gerald E. Schuman
Keyword(s):  
Boron Tolerance ◽  
Tall Wheatgrass
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