Growth-promoting activity of gibberellins on shoot elongation in Salix pentandra is reduced by 16,17-dihydro derivatisation

1997 ◽  
Vol 99 (1) ◽  
pp. 63-66 ◽  
Author(s):  
J. E. Olsen ◽  
O. Junttila
Keyword(s):  
Shoot Elongation ◽  
Growth Promoting ◽  
Salix Pentandra

scholarly journals Enhancement Potential of Plant Growth-Promoting Rhizobacteria on White Beans (Phaseolus vulgaris) Seedlings

2016 ◽  
Vol 57 ◽  
pp. 11-17
Author(s):  
Ugochi Kemka ◽  
Etienne Chinakwe ◽  
Emmanuel Egbadon
Keyword(s):  
Plant Growth ◽  
Indole Acetic Acid ◽  
Plant Growth Promoting Rhizobacteria ◽  
Shoot Elongation ◽  
Nutrient Supply ◽  
Percentage Germination ◽  
Microbial Inoculation ◽  
Seedling Root ◽  
Plant Growth Promoting ◽  
Growth Promoting

The effect of inoculating single cultures of plant growth-promoting rhizobacteria (PGPR) on development of white beans seedling (Phaseolus vulgaris) was analyzed. Five PGPR were isolated from the rhizosphere of Okra plants and were assessed for abilities to solubilise phosphate and produce indole acetic acid (IAA). The phosphate solubilising index ranged from 6-10 while the concentration of IAA ranged from 17.48mg/l to 27.43mg/l. Serratia sp. produced the highest concentration of IAA (27.43mg/l) and had the highest solubilisation index (10mm). Bacillus sp. produced the least amount of IAA (17.48mg/l) while Staphylococcus sp. had the least solubilisation index (6mm). The highest percentage germination of 83.3% was observed in the seedling inoculated with Bacillus sp. The influence of microbial inoculation on root and shoot elongation was studied hydroponically for 7 days. Significant increases (P< 0.05) in root elongation were observed. The highest seedling root length (18.47cm) and shoot length (19.17cm) were observed with inoculation of Staphylococcus sp. and Bacillus sp. respectively. The use of these bacteria as bio-inoculants could be a sustainable practice to facilitate nutrient supply to white beans seedlings.

Gibberellin-like activity in shoots of Salix pentandra as related to the elongation growth

1982 ◽  
Vol 60 (7) ◽  
pp. 1231-1234 ◽  
Author(s):  
Olavi Junttila
Keyword(s):  
Marked Reduction ◽  
Shoot Elongation ◽  
Apical Part ◽  
Apical Growth ◽  
Shoot Tip ◽  
Flower Buds ◽  
Natural Conditions ◽  
Growth Cessation ◽  
Salix Pentandra ◽  
Lateral Flower

Activities of acidic gibberellin(GA)-like substances in shoots of Salix pentandra trees growing under natural conditions (69°39′ N, 18°37′ E) were studied in relation to shoot elongation and tip abscission. Bioassay after separation on SiO2 partition columns was accomplished with the lettuce hypocotyl and dwarf rice 'Tan-ginbozu' assays. The GA-like activity in the apical part of the shoot greatly decreased before cessation of growth and shoot tip abscission. In the basal part of the shoot the marked reduction of GA-like substances occurred well before shoot tip abscission and even before shoot elongation had ceased. Low GA-like activity in the shoot may be a prerequisite for apical growth cessation and for the development of lateral flower buds.

Stimulation of shoot elongation in Salix pentandra by gibberellin A9; activity appears to be dependent upon hydroxylation to GA1 via GA20

1992 ◽  
Vol 84 (1) ◽  
pp. 113-120 ◽  
Author(s):  
Olavi Junttila ◽  
Einar Jensen ◽  
David W. Pearce ◽  
Richard P. Pharis
Keyword(s):  
Shoot Elongation ◽  
Salix Pentandra ◽  
Stimulation Of

Xyloglucan- and cello-oligosaccharides: Antagonists of the growth-promoting effect of H+

1990 ◽  
Vol 80 (1) ◽  
pp. 109-113 ◽  
Author(s):  
Ester P. Lorences ◽  
Gordon J. McDougall ◽  
Stephen C. Fry
Keyword(s):  
Promoting Effect ◽  
Growth Promoting

Role of putrescine in enhancing shoot elongation in Scirpus mucronatus under submergence

1996 ◽  
Vol 96 (3) ◽  
pp. 419-424
Author(s):  
Tse-Min Lee ◽  
Yuh-Jang Shieh ◽  
Chang-Hung Chou
Keyword(s):  
Shoot Elongation

Growth-promoting supervision: Reflections from women of color psychology trainees.

2019 ◽  
Vol 13 (3) ◽  
pp. 167-173
Author(s):  
Fiona C. Thomas ◽  
Jhodi-Ann Bowie ◽  
Lincoln Hill ◽  
Joelle T. Taknint
Keyword(s):  
Women Of Color ◽  
Psychology Trainees ◽  
Growth Promoting ◽  
Color Psychology
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