Assessment of aluminium tolerance in maize using a rapid screening procedure

Mendes, P.B; Farina, M. P. W.; Channon, P.

doi:10.1080/02571862.1984.10634115

Cited by 9 publications

(11 citation statements)

References 12 publications

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“…Doubt persists with regard to the selection of discriminatory criteria for the assessment of A1 tolerance (Mendes et al, 1984). Stimulusresponse coupling has not previously been used to explain the root reaction to AI.…”

Section: Altered Gene Expressionmentioning

confidence: 99%

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The aluminium signal: New dimensions to mechanisms of aluminium tolerance

Bennet

Breen

1991

Plant Soil

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The physiological basis of plant reaction to and tolerance of aluminium (AI) is poorly understood. We review the results of investigations into A1 toxicity and root physiology to develop a theoretical basis for explaining the reaction of the root to AI, including suggested roles for Ca 2+, mucilaginous cap secretions and endogenous growth regulators in mediating a transmitted response between Al-damaged cap cells and the interacting cell populations of the cap and root.This information is used to identify possible mechanisms of A1 tolerance, notably involving signal transduction, A1 uptake pathways and root morphogenesis; and to briefly discuss how procedures selecting for AI tolerance may be improved by incorporating the concept of stimulus-response coupling.Similarities in the responses of roots to A1 and other signals (e.g. gravity, light, mechanical impedance) are used to develop the hypothesis that roots respond to environmental signals by way of a common regulatory system. New research prospects for extending our perception of A1 tolerance mechanisms are identified.

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Section: Altered Gene Expressionmentioning

confidence: 99%

“…It is important to consider that existing procedures directed at screening plants for increased A1 tolerance (see Mendes et al, 1984 andLittle, 1988) are largely based on the measurement of plant growth responses i.e. the last event in the stress/response chain.…”

Section: Altered Gene Expressionmentioning

confidence: 99%

The aluminium signal: New dimensions to mechanisms of aluminium tolerance

Bennet

Breen

1991

Plant Soil

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“…This is especially true of areas with subsoil acidity, which is both difficult and costly to ameliorate. Glasshouse and growth-chamber studies have indicated that considerable variability in tolerance to AI exists among South African maize inbreds and hybrids (Farina, Mendes, Gevers & Channon, 1982;Mendes, Farina & Channon, 1984). Doubts persist, however, regarding the magnitude and economic significance of these differences under field conditions.…”

Section: Introductionmentioning

confidence: 96%

A field evaluation of the differential tolerance to soil acidity of forty-eight South African maize cultivars

Mendes¹,

Farina²,

Channon³

et al. 1985

South African Journal of Plant and Soil

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“…Tukey HSD was used to make pair wise mean comparison of each germplasm under control and Al-treated conditions. Relative total root length (RTRL) and root growth inhibition (RGI) were also estimated using the following method (Mendes et al, 1984). …”

Section: Data Recording and Statistical Analysismentioning

confidence: 99%

Hydroponic screening and characterization of aluminium tolerance on finger millet (Eleusine coracana (L.) Gaertn) accessions

Brhane¹,

Fikru²,

Haileselassie³

et al. 2018

J. Agric. Biotech. Sustain. Dev.

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Biotic and abiotic stress combined with the use of less productive local cultivars cause low production of finger millet in Ethiopia. This research was conducted to investigate acidity tolerance of finger millet accessions. Preliminary screening was done on 288 accessions and six improved national cultivars of finger millet. Twenty randomly selected and surface-sterilized seeds of each germplasm were wrapped and germinated in a tissue paper in Petri dishes. Thirty six hours-old seedlings of uniform size were transferred to the nutrient solutions having 500 µM KNO 3 , 500 µM CaCl 2 , 500 µM NH 4 NO 3 , 150 µM MgSO 4 .7H 2 O, 10 µM KH 2 PO 4 , 2 µM FeCl 3 (III) and 112.5 µM Al 2 (SO 4 ) 3 .18H 2 O and allowed to grow for a further 8 days along with tolerant and susceptible references. Characterization with (112.5 µM) and without (0 µM) Al conditions was also done on 80 accessions. After eight days root and shoot length of seedlings were measured using a ruler, while fresh weight of these seedlings was taken using a digital balance. Mean separation and analysis of variance on each treatment was conducted using SPSS software. Relative total root length (RTRL) and root growth inhibition (RGI) were also estimated. From screening of 288 accessions, 75 (26.04%) of them were Al tolerant, while 213 (73.95%) of them were medium to susceptible. From characterization, 63 (78.75%) showed significant Al stress in root length, 23 (28.75%) in fresh weight, while no distinct and visible symptom were observed in shoot growth. The study clearly showed the possibility of developing lines and genotypes that can tolerate acidity in Ethiopian context and support agricultural development in acidic soils in the country and in the world.

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Assessment of aluminium tolerance in maize using a rapid screening procedure

Cited by 9 publications

References 12 publications

The aluminium signal: New dimensions to mechanisms of aluminium tolerance

The aluminium signal: New dimensions to mechanisms of aluminium tolerance

A field evaluation of the differential tolerance to soil acidity of forty-eight South African maize cultivars

Hydroponic screening and characterization of aluminium tolerance on finger millet (Eleusine coracana (L.) Gaertn) accessions

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