Pseudomonas sp. TK35-L enhances tobacco root development and growth by inducing HRGPnt3 expression in plant lateral root formation

Cao, Yuanyuan; Ni, Haiting; Li, Ting; Lay, Khien-duc; Liu, Daisong; He, Xiangyi; Ou, Kangmiao; Tang, Xinyun; Wang, Xiaobo; Qiu, Lijuan

doi:10.1016/s2095-3119(20)63266-x

Cited by 12 publications

(6 citation statements)

References 60 publications

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“…In line with (Azmi & Handriatni, 2019), the bacteria Bacillus and Pseudomonas produces auxin hormone which can stimulate cell division and enlargement of cells in plant tissues. IAA synthesized by those bacteria can increase the production of root hairs, lateral roots and adventitious roots, leading to enhanced nutrient uptake (Cao et al, 2020) Bacillus and Pseudomonas have the same function to colonize plant root areas and produce plant growth hormones as previously mentioned. The function of these hormones can stimulate cell division, regulate cell enlargement and will stimulate root growth and stimulate the absorption of water and nutrients which have an effect on plant growth.…”

Section: Effects Of Utilization Of Biological Agents Of Bacillus and ...mentioning

confidence: 73%

Growth of Cut-Grafting Robusta Coffee Seeds Utilizing Orthotropic and Plagiotropic Rootstocks with Application Bacillus and Pseudomonas Mixture

Rosyady,

Larassati,

Setiyono

et al. 2024

J. appl. agricultural sci. technol.

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Vegetative propagation by cut-grafting has the advantage of being able to obtain seeds that inherit two superior traits from two scion clones in a relatively short time. The purpose of this research is to determine the effect of using orthotropic and plagiotropic rootstocks applied by Bacillus and Pseudomonas on the early growth of robusta coffee seedlings from cut grafting. The method used was by using a completely randomized factorial design with 2 factors and was repeated 3 times. The first factor was the use of rootstock cuttings which consisted of 2 levels, which were S1 (orthotropic stem) and S2 (plagiotropic stem). The second factor was the concentration of Bacillus and Pseudomonas which consisted of 5 levels, which were B0 (0 ml/L), B1 (20 ml/L), B2 (40 ml/L), B3 (60 ml/L) and B4 (80 ml/L). The results showed that (1) there was no interaction between the use of variatic rootstock and the application of the biological agent (2) The use of orthotropic rootstock increased plant growth, that is the number of primary roots and the number of leaves and (3) Application of the biological agent of Bacillus and Pseudomonas with concentrations of B4 increased seedling growth on all observed parameters except the number of shoots. Based on the results of this research, the benefit for coffee planters is to obtain alternative planting materials, namely from orthotropic branches. For further research, the use of orthotropic branch planting material as a scion plant can be investigated.

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Section: Effects Of Utilization Of Biological Agents Of Bacillus and ...mentioning

confidence: 73%

Growth of Cut-Grafting Robusta Coffee Seeds Utilizing Orthotropic and Plagiotropic Rootstocks with Application Bacillus and Pseudomonas Mixture

Rosyady,

Larassati,

Setiyono

et al. 2024

J. appl. agricultural sci. technol.

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“…Despite the similar colonization potential of the two wheat cultivars observed for SBW25 and ∆viscA, respectively, viscosin was found to impact plant root architecture parameters dependent on plant genotype. It has previously been shown that inoculation of plants with plant beneficial bacteria alters root colonization [57,58,59], but to our knowledge this is the first time, that is has been shown to be cultivar-dependent. The observed differential effect on plant root parameters could be the result of differential community assembly, dependent both on plant genotype and/or the ability of the inoculant to produce viscosin.…”

Section: Discussionmentioning

confidence: 84%

The potential ofPseudomonas fluorescensSBW25 to produce viscosin enhances wheat root colonization and shapes root-associated microbial communities in a plant genotype dependent manner in soil systems

Guan,

Bak,

Hennessy

et al. 2023

Preprint

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The importance of microbial functions for plant health and performance is unquestioned. Beneficial rhizosphere bacteria such as Pseudomonas spp. promote plant growth and protect against pathogens by producing a range of bioactive compounds, including cyclic lipopeptides (CLPs) known for their antimicrobial activities. However, the natural roles of CLPs during interactions between bacteria and plants remain underexplored especially in natural systems. Here,Pseudomonas fluorescensSBW25 producing the CLP viscosin was used to unravel the impact of viscosin on bacterial colonization potential and microbiome assembly at the plant root. Two varieties of winter wheat were inoculated with SBW25 or its viscosin-deficient mutant. Viscosin was shown to improve colonization potential and have a significant effect on assembly of both bacterial and protist communities at the root-soil interphase. This effect was shown to be plant cultivar dependent and pinpoints the importance of microbe-microbe interactions in colonization of plant roots. This study provides new insights into the natural role of viscosin and specifically the importance of viscosin for the bacterial colonization of plant roots and in shaping the microbial communities associated with different wheat varieties.

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“…Many studies have reported that PGPR promote plant growth. Cao et al (2020) reported that inoculation of tobacco with Pseudomonas sp. TK35-L can significantly improve tobacco root growth and dry matter accumulation.…”

Section: Discussionmentioning

confidence: 99%

“… Liu et al (2019) indicated that root colonization is critical for PGPR to promote plant growth. However, effective colonization of PGPR means not only that the strain can survive within the rhizosphere for long periods but also that the strain can expand into new zones following plant root extension ( Cao et al, 2020 ). The ability of PGPR to recognize their host plants and to colonize the rhizosphere depends on the combination of lectins secreted by plants and polysaccharides secreted by the PGPR ( Komath et al, 2006 ).…”

Section: Discussionmentioning

confidence: 99%

Phosphate-Solubilizing Pseudomonas sp. Strain WS32 Rhizosphere Colonization-Induced Expression Changes in Wheat Roots

Cai

et al. 2022

Front. Microbiol.

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Rhizosphere colonization is a pre-requisite for the favorable application of plant growth-promoting rhizobacteria (PGPR). Exchange and mutual recognition of signaling molecules occur frequently between plants and microbes. Here, the luciferase luxAB gene was electrotransformed into the phosphate-solubilizing strain Pseudomonas sp. WS32, a type of plant growth-promoting rhizobacterium with specific affinity for wheat. A labeled WS32 strain (WS32-L) was applied to determine the temporal and spatial traits of colonization within the wheat rhizosphere using rhizoboxes experimentation under natural condition. The effects of colonization on wheat root development and seedling growth were evaluated, and RNA sequencing (RNA-seq) was performed to explore the transcriptional changes that occur in wheat roots under WS32 colonization. The results showed that WS32-L could survive in the wheat rhizosphere for long periods and could expand into new zones following wheat root extension. Significant increases in seedling fresh and dry weight, root fresh and dry weight, root surface area, number of root tips, and phosphorus accumulation in the wheat leaves occurred in response to WS32 rhizosphere colonization. RNA-seq analysis showed that a total of 1485 genes in wheat roots were differentially expressed between the inoculated conditions and the uninoculated conditions. Most of the transcriptional changes occurred for genes annotated to the following functional categories: “phosphorus and other nutrient transport,” “hormone metabolism and organic acid secretion,” “flavonoid signal recognition,” “membrane transport,” and “transcription factor regulation.” These results are therefore valuable to future studies focused on the molecular mechanisms underlying the growth-promoting activities of PGPR on their host plants.

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Pseudomonas sp. TK35-L enhances tobacco root development and growth by inducing HRGPnt3 expression in plant lateral root formation

Cited by 12 publications

References 60 publications

Growth of Cut-Grafting Robusta Coffee Seeds Utilizing Orthotropic and Plagiotropic Rootstocks with Application Bacillus and Pseudomonas Mixture

Growth of Cut-Grafting Robusta Coffee Seeds Utilizing Orthotropic and Plagiotropic Rootstocks with Application Bacillus and Pseudomonas Mixture

The potential ofPseudomonas fluorescensSBW25 to produce viscosin enhances wheat root colonization and shapes root-associated microbial communities in a plant genotype dependent manner in soil systems

Phosphate-Solubilizing Pseudomonas sp. Strain WS32 Rhizosphere Colonization-Induced Expression Changes in Wheat Roots

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