Phosphate solubilization and phytohormone production by endophytic and rhizosphere Trichoderma isolates of guanandi (Calophyllum brasiliense Cambess)

Resende, MaÃ­ra PaixÃ£o; Jakoby, Isabel Cristina MendonÃ§a Cardoso; Santos, Luiz Carlos Ramos dos; Soares, Marcos AntÃ nio; Pereira, FlÃ¡via DionÃ­sio; Souchie, Edson Luiz; Silva, Fabiano GuimarÃ£es

doi:10.5897/ajmr2014.6633

Cited by 32 publications

(4 citation statements)

References 35 publications

(26 reference statements)

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“…Previous research also showed the phosphate solubilizing capacity of endophytic fungi and these findings support this result. 21,22 Kapri and Tiwari (2010) had isolated 14 Trichoderma species from different plant species and all these strains were capable to solubilize complex form of phosphates. Vanda cristata is an epiphytic orchid so that nutrient availability is quite challenging for this.…”

Section: Discussionmentioning

confidence: 99%

Isolation, characterization, and plant growth-promoting activities of endophytic fungi from a wild orchid Vanda cristata

Chand

Shah

Sharma

et al. 2020

Plant Signaling & Behavior

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Endophytism is one of the widely explored phenomena related to orchids and fungi. Endophytic fungi assist plants by supplementing nutrient acquisition, and synthesis of plant growth regulators. Vanda cristata is an epiphytic orchid that has a great diversity of endophytic fungi. Endophytic fungi were isolated from roots, stems, and leaves of V. cristata and identified by both morphological and molecular study. Furthermore, the isolated endophytic fungi were subjected to auxin synthesis, phosphate solubilization, ammonia synthesis, and elicitor growth test for understanding their growth-promoting effect in a qualitative and quantitative manner. Altogether, 12 different endophytic fungi were isolated from roots, stems, and leaves of V. cristata of which most species belonged to Ascomycota. Unidentified II fungi were found to be most effective for auxin synthesis and phosphate solubilization while Agaricus bisporous and Mycolepto discus were most effective for ammonia synthesis. We have tested the plant growth-promoting activity of the twelve isolated endophytic fungi on Cymbidium aloifolium protocorms (12 weeks old). All the endophytic fungi showed growth-promoting activity. Plant growth of Cymbidium aloifolium was found higher on the MS medium supplemented with all fungal elicitors. Fungal elicitor CVS4, however, showed the highest plant growth-promoting activity toward C. aloifolium.

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Section: Discussionmentioning

confidence: 99%

Isolation, characterization, and plant growth-promoting activities of endophytic fungi from a wild orchid Vanda cristata

Chand

Shah

Sharma

et al. 2020

Plant Signaling & Behavior

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“…Zhao and Zhang [50] reported that the application of Trichoderma to plants under salt stress increased IAA and GA levels and decreased ABA levels. Martínez-Medina et al [51] and Resende et al [52] also found that plant hormones like GA, ABA, and CTK play an important role in enhancing chlorophyll content. Therefore, the increased content of chlorophyll associated with Trichoderma application under salt stress may be related to its effect on plant hormones.…”

Section: Discussionmentioning

confidence: 97%

A novel salt-tolerant strain Trichoderma atroviride HN082102.1 isolated from marine habitat alleviates salt stress and diminishes cucumber root rot caused by Fusarium oxysporum

Zhang

Wang

et al. 2022

BMC Microbiol

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Background Salt stress threaten the growth of plants, and even aggravate plant disease. In this article, salt-tolerant Trichoderma strain was isolated, and its potential to alleviate salt stress and diminish cucumber root rot caused by Fusarium oxysporum was evaluated. Results Twenty-seven Trichoderma isolates were isolated from samples of sea muds and algae collected from the South Sea of China. Among these, the isolate HN082102.1 showed the most excellent salt tolerance and antagonistic activity against F. oxysporum causing root rot in cucumber and was identified as T. atroviride. Its antagonism ability may be due to mycoparasitism and inhibition effect of volatile substances. The application of Trichoderma mitigated the adverse effects of salt stress and promoted the growth of cucumber under 100 mM and 200 mM NaCl, especially for the root. When T. atroviride HN082102.1 was applied, root fresh weights increased by 92.55 and 84.86%, respectively, and root dry weights increased by 75.71 and 53.31%, respectively. Meanwhile, the application of HN082102.1 reduced the disease index of cucumber root rot by 63.64 and 71.01% under 100- and 0-mM saline conditions, respectively, indicating that this isolate could inhibit cucumber root rot under salt stress. Conclusions This is the first report of salt-tolerant T. atroviride isolated from marine habitat showing antagonistic activity to F. oxysporum, and the results provide evidence for the novel strain T. atroviride HN082102.1 in alleviating salt stress and diminishing cucumber root rot, indicating that T. atroviride strain HN082102.1 can be used as biological control agent in saline alkali land.

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“…Several studies have shown the capability of Trichoderma spp. to solubilize phosphate in vitro [51][52][53] and under stress conditions [54][55][56]. Phytases are phosphatases that hydrolyze phytic acid preferentially into inositol and P i [50], whereas acid phosphatases hydrolyze phosphomonoester and amides substrates, thereby transforming organic phosphate into a soluble inorganic form [57].…”

Section: T Atroviride Secretes Enzymes Involved In Oxidative Stress Response Cell Wall Degradation Hydrolysis Of Organic Phosphate Sourcementioning

confidence: 99%

Secretome Analysis of Arabidopsis–Trichoderma atroviride Interaction Unveils New Roles for the Plant Glutamate:Glyoxylate Aminotransferase GGAT1 in Plant Growth Induced by the Fungus and Resistance against Botrytis cinerea

González-López

Jijón-Moreno

Dautt-Castro

et al. 2021

IJMS

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The establishment of plant–fungus mutualistic interaction requires bidirectional molecular crosstalk. Therefore, the analysis of the interacting organisms secretomes would help to understand how such relationships are established. Here, a gel-free shotgun proteomics approach was used to identify the secreted proteins of the plant Arabidopsis thaliana and the mutualistic fungus Trichoderma atroviride during their interaction. A total of 126 proteins of Arabidopsis and 1027 of T. atroviride were identified. Among them, 118 and 780 were differentially modulated, respectively. Bioinformatic analysis unveiled that both organisms’ secretomes were enriched with enzymes. In T. atroviride, glycosidases, aspartic endopeptidases, and dehydrogenases increased in response to Arabidopsis. Additionally, amidases, protein-serine/threonine kinases, and hydro-lyases showed decreased levels. Furthermore, peroxidases, cysteine endopeptidases, and enzymes related to the catabolism of secondary metabolites increased in the plant secretome. In contrast, pathogenesis-related proteins and protease inhibitors decreased in response to the fungus. Notably, the glutamate:glyoxylate aminotransferase GGAT1 was secreted by Arabidopsis during its interaction with T. atroviride. Our study showed that GGAT1 is partially required for plant growth stimulation and on the induction of the plant systemic resistance by T. atroviride. Additionally, GGAT1 seems to participate in the negative regulation of the plant systemic resistance against B. cinerea through a mechanism involving H2O2 production.

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Phosphate solubilization and phytohormone production by endophytic and rhizosphere Trichoderma isolates of guanandi (Calophyllum brasiliense Cambess)

Cited by 32 publications

References 35 publications

Isolation, characterization, and plant growth-promoting activities of endophytic fungi from a wild orchid Vanda cristata

Isolation, characterization, and plant growth-promoting activities of endophytic fungi from a wild orchid Vanda cristata

A novel salt-tolerant strain Trichoderma atroviride HN082102.1 isolated from marine habitat alleviates salt stress and diminishes cucumber root rot caused by Fusarium oxysporum

Secretome Analysis of Arabidopsis–Trichoderma atroviride Interaction Unveils New Roles for the Plant Glutamate:Glyoxylate Aminotransferase GGAT1 in Plant Growth Induced by the Fungus and Resistance against Botrytis cinerea

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