Synergistic Effects of Plant Growth Promoting Rhizobacteria and Chitosan on<i>In Vitro</i>Seeds Germination, Greenhouse Growth, and Nutrient Uptake of Maize (<i>Zea mays</i>L.)

Agbodjato, Nadège A.; Noumavo, Pacôme A.; Adjanohoun, Adolphe; Agbessi, Léonce; Baba-Moussa, Lamine

doi:10.1155/2016/7830182

Cited by 75 publications

(56 citation statements)

References 22 publications

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“…Among the minerals studied, Cu was the most effective metal in terms of the inhibition of plant roots [24][25]. At the same time, similar to an earlier study, our results indicated that Cu is an essential nutrient for plants, and that the amount of Cu absorbed is a stimulant for root development and seed germination [26]. The positive correlation between root length and K concentration in the sediment indicated that K is also one of the most important nutrients and is essential for plant growth and development [27].…”

Section: Resultssupporting

confidence: 89%

Study of the Effects of High Levels of Nutrients on Seed Germination and Root Elongation

Kundrát

Gyulai

Simon

et al. 2017

Pol. J. Environ. Stud.

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IntroductionSpring and thermal ponds are important elements of a landscape, and thermal water is among the best environmental geoindicators [1][2]. Earlier studies have demonstrated that the chemistry of thermal ponds is largely influenced by the specific geological setting [2]. The use of thermal water for geochemical energy and improving health is also important [3]. Many earlier studies have demonstrated that thermal water has effects on the human body, e.g., on skin regeneration and the Pol. J. Environ. Stud. Vol. 26, No. 4 (2017), 1585-1590 AbstractPlant seeds are highly sensitive to environmental stress. The aim of our paper was to assess the effects of high nutrient levels in the water and sediment of thermal ponds and rivers on the ecosystem, based on the seed germination and root elongation of S. alba in the Lëngaricës Valley, Albania. Significant differences were found in the physicochemical parameters of the water and the sediment among samples taken from the river, the thermal ponds, and the control ponds. We found significant differences in the root elongation of S. alba seeds based on the water and the sediment of the river, the thermal ponds, and the control ponds. Significantly longer roots were found in the thermal water and sediment than in the river. Among the physicochemical parameters of the water and the sediment, Cu, K, and Li were stimulants for root elongation. With Cu, Li, Ba, Mg, Ni, carbon-dioxide, and sulphate-ion, a stimulant effect was found on seed germination. Our results indicated that the high mineral level of the water and sediment of these thermal ponds had positive effects on the ecosystem based on seed germination and the root elongation test of S. alba.

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Section: Resultssupporting

confidence: 89%

Study of the Effects of High Levels of Nutrients on Seed Germination and Root Elongation

Kundrát

Gyulai

Simon

et al. 2017

Pol. J. Environ. Stud.

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“…Gupta et al (2012) reported 23% and 16% increases in leaf area of chickpea following exogenous applications of Put and benzyl adenine under water stress condition. Agbodjato et al (2016) and Gholami et al (2009) reported 45% and 91% enhancement in leaf area of maize under stress condition due to inoculation with A. lipoferum.…”

Section: Discussionmentioning

confidence: 99%

Effects of exogenously applied plant growth regulators in combination with PGPR on the physiology and root growth of chickpea (Cicer arietinum) and their role in drought tolerance

Khan

Bano

Zandi

2018

Journal of Plant Interactions

148

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Both the plant growth promoting rhizobacteria (PGPR) and plant growth regulators (PGR) exert beneficial effects on plant growth even under stress, but combined effect of both of them has not been evaluated yet. Present investigation was aimed to determine the responses of 2 chickpea varieties (differing in drought tolerance) to 3 PGPR viz. Bacillus subtilis, Bacillus thuringiensis and Bacillus megaterium and PGR (SA and Putrescine) on physiology of chickpea grown in sandy soil. The PGR, Salicylic acid (SA) and Putrescine (Put) were sprayed on the seedling 20 days after germination. Results revealed, synergistic effects of PGPR and PGR on chlorophyll, protein and sugar contents. Addition of PGR to PGPR inoculated plants assisted the plant in osmoregulation and amelioration of oxidative stresses and in induction of new proteins. Combined application of PGR and PGPR decreased lipid peroxidation more effectively but increased the leaf area. It is inferred that PGPR and PGR work synergistically to promote growth of plants under moisture and nutrient deficit condition of sandy soil. Since, SA induces Systemic Acquired Resistance (SAR) in plants hence the addition of SA along with PGPR may render the plant more productive and better tolerant to diseases/pathogen attack. ARTICLE HISTORY

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“…Thus, these conditions were apparently favorable in this study (application of chitosan), since no negative effects were observed. Several studies reported that chitosan stimulated seed germination in maize (Guan et al, 2009;Lizárraga-Paulín et al, 2011;Agbodjato et al, 2016) and in other plants (Zeng and Luo, 2012;Mahdav and Rahimi, 2013).…”

Section: Discussionmentioning

confidence: 99%

Physicochemical characterization of chitosan and its effects on early growth, cell cycle and root anatomy of transgenic and non-transgenic maize hybrids

Martins¹,

Veroneze-Júnior²,

Carvalho³

et al. 2018

Aust J Crop Sci

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The objectives of this study were to perform the physicochemical characterization of chitosan, to evaluate its effects on germination, early growth, root anatomy and on the cell cycle of two maize hybrids. The hybrids DKB 390 and DKB 390 VTPRO (transgenic) were used. DKB390 VTPRO is from Monsanto, and the event number is 89034, which expresses the proteins Cry1A105 and Cry2AB2. For the physico-chemical characterization of chitosan, the following analyzes were performed:, elemental analysis, total ash, infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric analysis, scanning electron microscopy and viscosity. With the analysis of infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric and elemental analysis it was observed that the structure of chitosan presents a low level of deacetylation. Chitosan had a total ash value of 1.32% and high viscosity. By scanning electron microscopy the chitosan was classified as porous and fibrous structure. Increase in the seed germination rate was observed in both maize hybrids in the presence of chitosan, without changes in the initial growth. The cell analyzes showed that the chitosan was not toxic even at high concentrations, since the mitotic index remained unchanged and no chromosomal abnormalities were detected. The effects of chitosan in root anatomy were evaluated through the measurements of sections of root tips on histological preparations, and the genetically modified hybrid presented the best results. As conclusion, the use of chitosan in appropriate concentrations may favor the development of maize (especially transgenic) acting on germination or changing the root anatomy and consequently increasing resistance and adaptation of the seedlings to adverse conditions.

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Synergistic Effects of Plant Growth Promoting Rhizobacteria and Chitosan onIn VitroSeeds Germination, Greenhouse Growth, and Nutrient Uptake of Maize (Zea maysL.)

Cited by 75 publications

References 22 publications

Study of the Effects of High Levels of Nutrients on Seed Germination and Root Elongation

Study of the Effects of High Levels of Nutrients on Seed Germination and Root Elongation

Effects of exogenously applied plant growth regulators in combination with PGPR on the physiology and root growth of chickpea (Cicer arietinum) and their role in drought tolerance

Physicochemical characterization of chitosan and its effects on early growth, cell cycle and root anatomy of transgenic and non-transgenic maize hybrids

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