Maize-associated Meyerozyma from the Brazilian semiarid region are effective plant growth-promoting yeasts

Targino, Herbert Mouse de Lima; Silva, Viviane Siqueira Lima; Escobar, Indra Elena Costa; Ribeiro, Paula Rose de Almeida; Gava, C. A. T.; Fernandes‐Júnior, Paulo Ivan

doi:10.1016/j.rhisph.2022.100538

Cited by 9 publications

(5 citation statements)

References 41 publications

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“…After foliar application of C. tropicalis KPS2219, shoot and root length as well as root and stem dry weight of chili significantly improved by 17.72, 29.15, 60 and 46.15 %, respectively, in comparison with the control, indicating that C. tropicalis KPS2219 had a beneficial effect on plant development compared to the uninoculated control (Table 4). Our finding is consistent with other previous works that studied the effect of plant growth-promoting yeast on plant growth [50,51] Additionally, foliar spray is an effective method to introduce phyllospheric yeast to plants. In the phyllosphere's microecosystem, yeast and bacteria are more common in the grooves, around the trichomes, and in the stomata of epidermal cells [52].…”

Section: Effects Of Growth-promoting Yeasts On the Growth Of Chili Se...supporting

confidence: 93%

Indole-3-Acetic Acid Producing Yeasts in the Phyllosphere of Legumes: Benefits for Chili Growth

Soponputtaporn,

Srithaworn,

Promnuan

et al. 2024

Trends Sci

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Plant growth-promoting yeast (PGPY), which is associated with plants, has demonstrated the ability to enhance plant growth and crop yield and provide an effective alternative strategy for reducing the extensive use of chemical fertilizers. However, plant development and yield effects of the phyllosphere yeast have received comparatively little research. Therefore, 95 phylloplane yeast were isolated from the leaves of plants in Leguminosae, and their capability to produce indole-3-acetic acid (IAA) in yeast extract peptone dextrose (YPD) broth supplemented with L-tryptophan was evaluated in this research. Forty-two isolates were selected, due to their ability to produce IAA. Among these isolates, 7 showed high IAA production of more than 40 mg/g DW in YPD with tryptophan as the precursor. These strains were identified as Candida tropicalis, Pichia kudriavzevii and Tortispora caseinolytica based on morphological and D1/D2 domain of LSU rDNA sequence analysis. Other plant growth promotion traits, including the solubilization of phosphate, production of ammonia and siderophores and ACC deaminase activity, were also investigated. The results revealed that Candida tropicalis KPS2219 exhibited maximum IAA production of 54.10 mg/g DW, high ammonia production at 1.16 mg/mL and siderophore production. In a greenhouse experiment, the ability of C. tropicalis KPS2219 to enhance the growth of chili seedlings was investigated. The results revealed that seed priming followed by foliar spraying with C. tropicalis KPS2219 significantly increased the root length, shoot length, root dry weight and stem dry weight of the seedlings by 17.72, 29.15, 60 and 46.15 %, respectively, in comparison to those of the uninoculated control. These findings indicate the possibility of C. tropicalis KPS2219 as a bioinoculant to promote plant development and the effectiveness of foliar application. The efficacy of employing yeast consortiums to enhance growth will be investigated for further study. HIGHLIGHTS Phylloplane yeasts with remarkably high IAA production and multiple traits that promote the growth of plants were isolated from the new habitat, legumes. Spraying the yeast cells on the leaves of chili plants accelerated the growth of the plant. GRAPHICAL ABSTRACT

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Section: Effects Of Growth-promoting Yeasts On the Growth Of Chili Se...supporting

confidence: 93%

Indole-3-Acetic Acid Producing Yeasts in the Phyllosphere of Legumes: Benefits for Chili Growth

Soponputtaporn,

Srithaworn,

Promnuan

et al. 2024

Trends Sci

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“…In contrast, in a study of maize plants in Thailand, 217 yeast isolates were obtained, and those from the phylum Basidiomycota were more abundant (81.6%) [ 22 ]. In contrast, yeasts associated with corn in Brazil belonged entirely to the phylum Ascomycota [ 23 ]. These findings showed that yeast diversity appears to be largely influenced by maize variety, tissue type, and the soil in which the plants are grown.…”

Section: Resultsmentioning

confidence: 99%

Mycobiota of Mexican Maize Landraces with Auxin-Producing Yeasts That Improve Plant Growth and Root Development

Ramos-Garza

Aguirre-Noyola

Bustamante-Brito

et al. 2023

Plants

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Compared to agrochemicals, bioinoculants based on plant microbiomes are a sustainable option for increasing crop yields and soil fertility. From the Mexican maize landrace “Raza cónico” (red and blue varieties), we identified yeasts and evaluated in vitro their ability to promote plant growth. Auxin production was detected from yeast isolates and confirmed using Arabidopsis thaliana plants. Inoculation tests were performed on maize, and morphological parameters were measured. Eighty-seven yeast strains were obtained (50 from blue corn and 37 from red corn). These were associated with three families of Ascomycota (Dothideaceae, Debaryomycetaceae, and Metschnikowiaceae) and five families of Basidiomycota (Sporidiobolaceae, Filobasidiaceae, Piskurozymaceae, Tremellaceae, and Rhynchogastremataceae), and, in turn, distributed in 10 genera (Clavispora, Rhodotorula, Papiliotrema, Candida, Suhomyces, Soliccocozyma, Saitozyma Holtermaniella, Naganishia, and Aeurobasidium). We identified strains that solubilized phosphate and produced siderophores, proteases, pectinases, and cellulases but did not produce amylases. Solicoccozyma sp. RY31, C. lusitaniae Y11, R. glutinis Y23, and Naganishia sp. Y52 produced auxins from L-Trp (11.9–52 µg/mL) and root exudates (1.3–22.5 µg/mL). Furthermore, they stimulated the root development of A. thaliana. Inoculation of auxin-producing yeasts caused a 1.5-fold increase in maize plant height, fresh weight, and root length compared to uninoculated controls. Overall, maize landraces harbor plant growth-promoting yeasts and have the potential for use as agricultural biofertilizers.

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“…Thirty-five known yeast species in the phylum Ascomycota and 15 known species in the phylum Basidiomycota were identified in this study. Among these, 11 ascomycetous yeast species were reported as endophytic yeasts: Candida metapsilosis [48] , C. orthopsilosis [49] , C. parapsilosis [45] , [50] , C. tropicalis [48] , Meyerozyma caribbica [51] , M. carpophila [52] , C. pseudointermedia [48] , Kodamaea ohmeri [48] , Pichia kluyveri [53] , Pi. kudriavzevii [49] , and Hanseniaspora opuntiae [53] .…”

Section: Discussionmentioning

confidence: 99%

Diversity of duckweed (Lemnaceae) associated yeasts and their plant growth promoting characteristics

Kajadpai,

Angchuan,

Khunnamwong

et al. 2023

AIMSMICRO

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<abstract> The diversity of duckweed (<italic>Lemnaceae</italic>) associated yeasts was studied using a culture-dependent method. A total of 252 yeast strains were isolated from 53 duckweed samples out of the 72 samples collected from 16 provinces in Thailand. Yeast identification was conducted based on the D1/D2 region of the large subunit (LSU) rRNA gene sequence analysis. It revealed that 55.2% and 44.8% yeast species were Ascomycota and Basidiomycota duckweed associated yeasts, respectively. Among all, <italic>Papiliotrema laurentii</italic>, a basidiomycetous yeast, was found as the most prevalent species showing a relative of frequency and frequency of occurrence of 21.8% and 25%, respectively. In this study, high diversity index values were shown, indicated by the Shannon-Wiener index (<italic>H′</italic>), Shannon equitability index (<italic>EH</italic>) and Simpson diversity index (<italic>1-D</italic>) values of 3.48, 0.86 and 0.96, respectively. The present results revealed that the yeast community on duckweed had increased species diversity, with evenness among species. Principal coordinate analysis (PCoA) revealed no marked differences in yeast communities among duckweed genera. The species accumulation curve showed that the observed species richness was lower than expected. Investigation of the plant growth promoting traits of the isolated yeast on duckweed revealed that 178 yeast strains produced indole-3-acetic acid (IAA) at levels ranging from 0.08–688.93 mg/L. Moreover, siderophore production and phosphate solubilization were also studied. One hundred and seventy-three yeast strains produced siderophores and exhibited siderophores that showed 0.94–2.55 activity units (AU). One hundred six yeast strains showed phosphate solubilization activity, expressed as solubilization efficiency (SE) units, in the range of 0.32–2.13 SE. This work indicates that duckweed associated yeast is a potential microbial resource that can be used for plant growth promotion. </abstract>

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Maize-associated Meyerozyma from the Brazilian semiarid region are effective plant growth-promoting yeasts

Cited by 9 publications

References 41 publications

Indole-3-Acetic Acid Producing Yeasts in the Phyllosphere of Legumes: Benefits for Chili Growth

Indole-3-Acetic Acid Producing Yeasts in the Phyllosphere of Legumes: Benefits for Chili Growth

Mycobiota of Mexican Maize Landraces with Auxin-Producing Yeasts That Improve Plant Growth and Root Development

Diversity of duckweed (<i>Lemnaceae</i>) associated yeasts and their plant growth promoting characteristics

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