Analysis of the relationship between cyanide-resistant respiration and photosynthesis under light in Phaseolus vulgaris leaves

2015 ◽  
Vol 39 (1) ◽  
pp. 104-109
Author(s):  
FENG Han-Qing ◽  
◽  
GUAN Dong-Dong ◽  
JIAO Qing-Song ◽  
JIA Ling-Yun ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
The Relationship ◽  
Cyanide Resistant Respiration

The relationship between ozone insensitivity, lipid-soluble antioxidants, and superoxide dismutase in Phaseolus vulgaris

1982 ◽  
Vol 60 (12) ◽  
pp. 2686-2691 ◽  
Author(s):  
B. D. McKersie ◽  
W. D. Beversdorf ◽  
P. Hucl
Keyword(s):  
Superoxide Dismutase ◽  
Phaseolus Vulgaris ◽  
Physiological Mechanism ◽  
Superoxide Dismutase Activity ◽  
Phaseolus Vulgaris L ◽  
Visual Rating ◽  
Ozone Injury ◽  
Ozone Tolerance ◽  
The Relationship ◽  
Lipid Soluble Antioxidant

Ozone insensitivity was assessed by three methods (visual rating, leakage of amino acids, and leakage of total electrolytes from leaf discs), and related to the levels of lipid-soluble antioxidants and superoxide dismutase activity in the primary leaves of different ages and of different cultivars of Phaseolus vulgaris L. The most sensitive indicator of ozone injury was visual rating. The increased variability associated with measurements of amino acid or total electrolyte leakage masked differences among cultivars which could be detected by visual rating. The correlations among the three measures of injury were high. Ozone tolerance of the primary leaf decreased between 8 and 18 days after planting and varied significantly among the 10 cultivars tested. Similarly, significant differences in lipid-soluble antioxidant content and superoxide dismutase activity were measured, but a correlation with ozone insensitivity was not established. Exposure to 20 pphm ozone for 24 h induced higher quantities of lipid-soluble antioxidant in the susceptible cv. Seafarer but not in the tolerant cv. Goldcrop. Superoxide dismutase increased similarly in both cultivars. The physiological mechanism of ozone insensitivity in the primary leaves of these cultivars of P. vulgaris was not shown to involve increased levels of lipid-soluble antioxidants or superoxide dismutase.

The incidence of bacterial blights of French bean (Phaseolus vulgaris) in East Gippsland, Victoria

1978 ◽  
Vol 18 (91) ◽  
pp. 318
Author(s):  
DLS Wimalajeewa ◽  
RJ Nancarrow
Keyword(s):  
Phaseolus Vulgaris ◽  
Severe Disease ◽  
French Bean ◽  
Brown Spot ◽  
French Beans ◽  
Halo Blight ◽  
Growing Seasons ◽  
Relationship Of ◽  
The Relationship

The incidence of common blight, halo blight and brown spot on French beans was surveyed in the Bairnsdale-Lindenow and Orbost areas in East Gippsland during the 1975-76 and 1976-77 growing seasons. Common blight and halo blight were severe only during late January to March, and occurred largely on mature crops. Common blight was the more severe disease in the Orbost area whereas halo blight was more severe in the Bairnsdale-Lindenow area. Brown spot occurred throughout the season on crops of all ages in both areas but was more severe in the Bairnsdale-Lindenow area. The relationship of weather to the incidence of bacterial blights in the two areas is discussed. It is inferred that losses due to common blight and halo blight could be considerably minimized by timing the planting of crops to harvest them by mid-February.

Relationship of leaf parameters with genetic ozone insensitivity in selected Phaseolus vulgaris cultivars

1982 ◽  
Vol 60 (11) ◽  
pp. 2187-2191 ◽  
Author(s):  
P. Hucl ◽  
W. D. Beversdorf ◽  
B. D. McKersie
Keyword(s):  
Phaseolus Vulgaris ◽  
Stomatal Closure ◽  
Foliar Injury ◽  
Stomatal Frequency ◽  
Phaseolus Vulgaris L ◽  
Ozone Sensitivity ◽  
Primary Mechanism ◽  
Relationship Of ◽  
The Relationship ◽  
Leaf Parameters

The relationship of ozone-induced foliar injury (ozone sensitivity) with several leaf characteristics including stomatal frequency, stomatal closure in the presence of ozone (O3), and trichome densities (abaxial and adaxial) was evaluated for a diverse group of Phaseolus vulgaris L. cultivars. Differences were observed among cultivars for ozone sensitivity and leaf parameters including stomatal frequency, trichome density, and stomatal closure in the presence of O3. Although significant (P ≤ 0.05) differences among the cultivars for stomatal frequency and trichome densities existed, no consistent pattern between insensitive and sensitive cultivars was observed. Ozone-sensitive genotypes responded to 40 parts per hundred million O3 with similar or greater stomatal closure than the more insensitive genotypes, indicating that stomatal closure was not a primary mechanism for O3 insensitivity among the cultivars evaluated.

The effect of density of planting on the growth of two Phaseolus vulgaris varieties in England

1976 ◽  
Vol 87 (1) ◽  
pp. 89-99 ◽  
Author(s):  
E. O. Lucas ◽  
G. M. Milbourn
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Yield ◽  
Dry Matter ◽  
Planting Density ◽  
High Yield ◽  
Vegetative Tissue ◽  
Wide Range ◽  
The Relationship ◽  
Pod Photosynthesis ◽  
Number Of Branches

SummaryThe growth and development of two varieties of Phaseolus vulgaris (Purley King and Limelight) were compared in two experiments in 1973 and 1974 at a range of planting density from 20 to 100 seeds/m2. Within this range, the relationship between seed yield and density in Purley King was asymptotic, although there was a suggestion that if even higher densities had been tested, a downward trend in yield might have occurred. The optimum density of planting for Purley King in Expt 1 was 50 seeds/m2 while that for Limelight was 40 seeds/m2. The corresponding densities in Expt 2 were 75 and 50 seeds/m2 respectively. Although number of branches per plant generally decreased with increasing density, there was no significant density effect on the number of nodes per plant. Thus stabilization of seed yield occurred even at quite low densities. Although in the low-density treatments, less vegetative tissue was produced, the peak of dry-matter yield occurred later after flowering and the slower subsequent senescence ensured the presence of active photosynthetic tissue throughout the pod-fill stage. Less pod retention occurred at high density which, combined with the ability of widely spaced plants to produce pods over a longer period, resulted in a similar number of pods per unit area over a wide range of density.Although the variety Purley King produced more than double the number of mature pods from its extra nodes and branches, it was outyielded by Limelight by 35% from the combined effect of more seeds per pod and a higher mean seed weight. Limelight also produced this high yield with less vegetative tissue. In both varieties it appeared that pod photosynthesis could take place, in Purley King because the pods were borne on higher nodes above the canopy and in Limelight due to the earlier senescence of its smaller leaf area. However, in spite of the apparent physiological advantages of Limelight, the pods are not borne high enough on this plant to enable satisfactory mechanical harvesting.

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