Auxin transport in intact pea seedlings (Pisum sativum L.): The inhibition of transport by 2,3,5-triiodobenzoic acid

Planta ◽  
1973 ◽  
Vol 110 (2) ◽  
pp. 173-182 ◽  
Author(s):  
D. A. Morris ◽  
Golben Othman Kadir ◽  
A. J. Barry
Keyword(s):  
Pisum Sativum ◽  
Auxin Transport ◽  
Triiodobenzoic Acid ◽  
Pisum Sativum L ◽  
Pea Seedlings

The specificity of auxin transport in intact pea seedlings (Pisum sativum L.)

Planta ◽  
1974 ◽  
Vol 118 (3) ◽  
pp. 225-234 ◽  
Author(s):  
D. A. Morris ◽  
A. Guy Thomas
Keyword(s):  
Pisum Sativum ◽  
Auxin Transport ◽  
Pisum Sativum L ◽  
Pea Seedlings

scholarly journals Physiological and Biochemical Characterization of the GABA Shunt Pathway in Pea (Pisum sativum L.) Seedlings Under Drought Stress

Horticulturae ◽  
2021 ◽  
Vol 7 (6) ◽  
pp. 125
Author(s):  
Nisreen A. AL-Quraan ◽  
Zakaria I. Al-Ajlouni ◽  
Nima F. Qawasma
Keyword(s):  
Drought Stress ◽  
Pisum Sativum ◽  
Water Availability ◽  
Dry Weight ◽  
Gaba Shunt ◽  
Pisum Sativum L ◽  
Pea Seedlings ◽  
Mda Content ◽  
Carbohydrate Levels

The physiological and biochemical role of the γ-aminobutyric acid (GABA) shunt pathway in green pea seedlings (Pisum sativum L.) was studied in response to soil water holding capacity levels: 80%, 60%, 40%, 20%, and 10% grown under continuous light at 25 °C for 7 days and 14 days, separately. Characterization of seeds germination pattern, seedlings growth (plant height, fresh and dry weight, and chlorophyll contents), GABA shunt metabolite (GABA, glutamate, and alanine) levels, total protein and carbohydrate levels, and oxidative damage (MDA level) were examined. Data showed a significant effect of drought stress on seed germination, plant growth, GABA shunt metabolites level, total protein and carbohydrate contents, and MDA level. A significant decline in seed germination percentage was recorded at a 20% drought level, which indicated that 20% of soil water holding capacity is the threshold value of water availability for normal germination after 14 days. Seedling fresh weight, dry weight, and plant height were significantly reduced with a positive correlation as water availability was decreased. There was a significant decrease with a positive correlation in Chl a and Chl b contents in response to 7 days and 14 days of drought. GABA shunt metabolites were significantly increased with a negative correlation as water availability decreased. Pea seedlings showed a significant increase in protein content as drought stress was increased. Total carbohydrate levels increased significantly when the amount of water availability decreased. MDA content increased slightly but significantly after 7 days and sharply after 14 days under all water stress levels. The maximum increase in MDA content was observed at 20% and 10% water levels. Overall, the significant increases in GABA, protein and carbohydrate contents were to cope with the physiological impact of drought stress on Pisum sativum L. seedlings by maintaining cellular osmotic adjustment, protecting plants from oxidative stress, balancing carbon and nitrogen (C:N) metabolism, and maintaining cell metabolic homeostasis and cell turgor. The results presented in this study indicated that severe (less than 40% water content of the holding capacity) and long-term drought stress should be avoided during the germination stage to ensure proper seedling growth and metabolism in Pisum sativum L.

Pathways of auxin transport in the intact pea seedling (Pisum sativum L.)

Planta ◽  
1972 ◽  
Vol 107 (2) ◽  
pp. 171-182 ◽  
Author(s):  
D. A. Morris ◽  
Golben Othman Kadir
Keyword(s):  
Pisum Sativum ◽  
Auxin Transport ◽  
Pisum Sativum L ◽  
Pea Seedling

scholarly journals The effect of quercetine on leaf abscission of apple tree (Malus domestica Borkh.), growth of flax (Linum usitatissimum L.) and pea (Pisum sativum L.), and ethylene production

2011 ◽  
Vol 52 (No. 12) ◽  
pp. 559-563 ◽  
Author(s):  
H. Fišerová ◽  
J. Šebánek ◽  
J. Hradilík ◽  
S. Procházka
Keyword(s):  
Pisum Sativum ◽  
Linum Usitatissimum ◽  
Apple Tree ◽  
Apple Trees ◽  
Polar Transport ◽  
Malus Domestica Borkh ◽  
Inhibiting Effect ◽  
Linum Usitatissimum L ◽  
Pisum Sativum L ◽  
Pea Seedlings

This study compares effects of 2,3,5-triiodobenzoic acid (TIBA) and flavonoid quercetine (Q). In spite of the fact that both these compounds are inhibitors of the polar transport of auxin, a number of experiments demonstrated that their properties are different. If the flax seedlings were decapitated and one cotyledon was removed, the axillary bud of the remaining cotyledon grew up more intensively while TIBA (0.5% applied in the form of a lanolin paste on the remaining cotyledon) induced a correlative reversal so that axillars of removed cotyledons grew up more intensively. However, when Q (0.5%) was applied on the remaining cotyledon in the form of a lanolin paste, this inhibition was not significant. In the lamina-deprived petioles of apple trees TIBA accelerated abscission while Q caused an inhibiting effect similar to that of auxin. TIBA applied on epicotyls of pea seedlings inhibited their growth by 35% while Q only by 15%. As far as the release of ethylene by pea seedlings is concerned, both compounds showed promoting effects similar to the effect of auxin.

Transport of 14C-kinetin in intact and decapitated pea seedlings (Pisum sativum L.)

1977 ◽  
Vol 81 (4) ◽  
pp. 308-313 ◽  
Author(s):  
S. Procházka ◽  
H. Schraudolf ◽  
J. Šonka
Keyword(s):  
Pisum Sativum ◽  
Pisum Sativum L ◽  
Pea Seedlings

scholarly journals Effect of hydrogen cyanamide on the endogenous hormonal content of pea seedlings (Pisum sativum L.)

2008 ◽  
Vol 20 (2) ◽  
pp. 159-163 ◽  
Author(s):  
Eric Guevara ◽  
Víctor M. Jiménez ◽  
Jorge Herrera ◽  
Fritz Bangerth
Keyword(s):  
Pisum Sativum ◽  
Hydrogen Cyanamide ◽  
Pisum Sativum L ◽  
Pea Seedlings ◽  
Hormonal Content
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