Growth stimulation and fruit yield improvement of greenhouse tomato plants by inoculation with Pseudomonas putida or Trichoderma atroviride: Possible role of indole acetic acid (IAA)

2007 ◽  
Vol 39 (8) ◽  
pp. 1968-1977 ◽  
Author(s):  
Valérie Gravel ◽  
Hani Antoun ◽  
Russell J. Tweddell
Keyword(s):  
Acetic Acid ◽  
Pseudomonas Putida ◽  
Indole Acetic Acid ◽  
Growth Stimulation ◽  
Fruit Yield ◽  
Trichoderma Atroviride ◽  
Yield Improvement ◽  
Tomato Plants ◽  
Greenhouse Tomato

scholarly journals GROWTH IMPROVEMENT OF TOMATO WITH THE APPLICATION OF BACTERIAL ISOLATES PRODUCING INDOLE ACETIC ACID (IAA) AND PHOSPHATE SOLUBILIZER

2019 ◽  
Vol 20 (1) ◽  
pp. 35
Author(s):  
Eny Ida Riyanti ◽  
Dwi Ningsih Susilowati ◽  
Karden Mulya ◽  
Edy Listanto
Keyword(s):  
Acetic Acid ◽  
Root Length ◽  
Crop Production ◽  
Indole Acetic Acid ◽  
Dry Weight ◽  
Fruit Yield ◽  
Bacterial Isolates ◽  
Phenotypic Properties ◽  
Root Dry Weight ◽  
Tomato Growth

<p class="keyword">Soil bacteria have important roles in biogeochemical cycle for soil fertility and have been manipulated for ecologically-friendly crop production.  The search for beneficial association between microbes and plants for promoting growth and health should be studied for tomato growth improvement. The study aimed to  evaluate 19 microbial isolates which produced indole acetic acid (IAA) affecting growth and development of tomato (Palupi variety), and  molecularly identify the most effective isolates in improving tomato growth based on 16s rDNA sequences. The experiment was conducted in pots using a complete randomized design with three replications. The parameters observed included plant height, plant dry weight, root length, root dry weight, and fruit fresh weight.  The isolates that significantly improved tomato growth were molecularly identified using 16s rRNA sequence. The phenotypic properties such as IAA content and phosphate solubilizing index (PI) of the superior isolates were determined. Results showed that the application of bacterial isolates on tomato significantly increased plant dry weight and fruit yield. From 19 isolates tested, Aj 3.7.1.14 significantly increased plant dry weight, root length, and fruit yield. This isolate produced IAA of about 14.77 ppm and PI of 1.86.  Molecular analysis on Aj 3.7.1.14 demonstrated that the isolate had 89% similarity to <em>Pseudomonas fragi</em>. The identified <em>P. fragi</em> was found to be the most effective isolate for improving tomato growth and fruit yield. Another isolate, <em>Bacillus amyloliquefaciens</em> was found to promote root length, root dry weight, and fruit yield. These isolates are potential to be further investigated for field trials</p>

scholarly journals Sodium nitroprusside and indole acetic acid improve the tolerance of tomato plants to heat stress by protecting against DNA damage

2017 ◽  
Vol 12 (1) ◽  
pp. 177-186 ◽  
Author(s):  
Manzer H. Siddiqui ◽  
Saud A. Alamri ◽  
Mutahhar Y.Y. Al-Khaishany ◽  
Mohammed A. Al-Qutami ◽  
Hayssam M. Ali ◽  
...  
Keyword(s):  
Dna Damage ◽  
Acetic Acid ◽  
Heat Stress ◽  
Sodium Nitroprusside ◽  
Indole Acetic Acid ◽  
Tomato Plants

scholarly journals Indole acetic acid is responsible for protection against oxidative stress caused by drought in soybean plants: The role of heme oxygenase induction

Redox Report ◽  
2014 ◽  
Vol 19 (6) ◽  
pp. 242-250 ◽  
Author(s):  
Manuel López Lecube ◽  
Guillermo O. Noriega ◽  
Diego M. Santa Cruz ◽  
María L. Tomaro ◽  
Alcira Batlle ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Acetic Acid ◽  
Heme Oxygenase ◽  
Indole Acetic Acid ◽  
Soybean Plants

Indole Acetic Acid (IAA) Mediated Amelioration of Lead (Pb) Stress- Physiological Indices of Mung Bean [Vigna radiata (L.) Wilczek]

2021 ◽  
Author(s):  
Sana Saleem ◽  
Ghulam Yasin ◽  
Ikram Ul Haq ◽  
Adeela Altaf ◽  
Khalid Hussain ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Stomatal Conductance ◽  
Transpiration Rate ◽  
Mung Bean ◽  
Indole Acetic Acid ◽  
Sandy Loam ◽  
Co2 Concentration ◽  
Pb Stress ◽  
Loam Soil

Background: Heavy metals have their adverse effects on growth and physiology of plant. Plant growth regulators help in improving the growth and physiological phenomenon in plants. A pot culture experiment was devised to explore the ameliorative potential of Indole Acetic Acid (IAA) for toxicity of rhizospheric lead (Pb) on two varieties of Mung bean [Vigna radiate (L.) Wickzek]. Methods: Seeds of two varieties i.e., M- 8 and MN-92 were grown in earthen pots filled with sandy loam soil and were arranged under complete randomization. Fifteen days after germination, the lead (Pb) was added @ 10mg/kg and 20mg/kg soil as solution Pb NO3. Indole Acetic Acid @100.0mM was foliarly sprayed twice at 15 and 30 days of plants emergence. Physiological parameters i.e., Photosynthetic Rate, Transpiration Rate, Stomatal conductance, Sub Stomatal CO2 Concentration and biomass production in the form of stem, root and leaf dry weights were determined at the age of physiological maturity for three replicates. Result: By application of IAA, photostnthetic rate reduction was declined from 24.61% to 17.78% under 10mg Pb stress and from 55.54% to 27.35% under 20mg Pb stress. Stomatal conductance reduction was declined from 0.56% to 0.28% under 10mg Pb stress and from 3.37% to 1.68% under 20mg Pb stress. Alleviation of Pb stress by IAA for transpiration rate was non significant. Similarly, the role of IAA for alleviation of Pb stress in term of dry weights of stem,root and leaves were non significant statistically.

scholarly journals Effect of Indole Acetic Acid and Boron on the Nutrient Contents of Summer Tomato Cultivar Bina Tomato-3

2019 ◽  
pp. 1-7
Author(s):  
Munmun Saha ◽  
Md. Abul Khair Chowdhury ◽  
Md. Akhter Hossain Chowdhury
Keyword(s):  
Acetic Acid ◽  
Indole Acetic Acid ◽  
Control Treatment ◽  
Tomato Cultivar ◽  
Tomato Fruits ◽  
Tomato Plants ◽  
Nutrient Contents ◽  
Randomized Design ◽  
Agricultural Chemistry ◽  
Completely Randomized Design

A pot experiment was carried out with tomato variety BINA Tomato-3 in the net house of the Department of Agricultural Chemistry, Bangladesh Agricultural University (BAU), Mymensingh from March to August, 2010 to study the effect of Indole Acetic Acid(IAA) and Boron(B) on the nutrient contents of BINA Tomato-3. There were four doses of IAA viz. 0, 20, 40 and 60 ppm and B viz. 0, 1.5, 2.0 and 2.5 kg ha-1. The experiment was laid out in a Completely Randomized Design (CRD) with 3 replications. The result revealed that nutrient contents of tomato fruits and plants such as N, P, Ca, Mg and B were significantly influenced by the application of IAA and B. The highest N (0.70%), Ca (0.69%), Mg (0.80%) in tomato fruits and highest N (0.40%), Ca (0.93%), Mg (0.90%) in tomato plants  were obtained in 60 ppm IAA along with 2.0 kg B ha-1 and the lowest was obtained in the control treatment. In tomato fruits the highest P (0.41%) was found in IAA40B2.0 treatment, while the lowest P (0.18%) was recorded in IAA0B0.0. The lowest B (4.55µgg-1) was recorded in control, while the highest B (15.72µgg-1) was found in IAA20B2.0in tomato fruits. In tomato plants the highest P (0.34%) was recorded in IAA60B1.5 and the lowest P (0.20%) was found in control. The lowest B (4.15µgg-1) was recorded in IAA0B0.0, while the highest B(13.33µgg-1) was found in IAA40B2.0 in tomato plants. The overall results suggest that treatment IAA60B2.0 was the best from other treatments.

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