Comparing native and non-native seed-isolated strains for drought resilience in maize (Zea mays L.)

Gil, Tatiana; Romão, Inês Rebelo; Gomes, Joana do Carmo; Vergara-Diaz, Omar; de Carvalho, Lucas Amoroso Lopes; Sousa, Andre; Kasa, Flavia; Teixeira, Raquel; Mateus, Sara; Katamadze, Artūrs; Pinheiro, Daniel Guariz; Vicente, Rubén; Vílchez, Juan Ignacio

doi:10.1016/j.stress.2024.100462

Cited by 3 publications

(1 citation statement)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Seed-borne endophytes are an important concern for VTEs due to their potential presence in emerging progeny plants and play an important role in these plants during seed germination and early seedling establishment [7]. Core seed endophytes have been shown to be vertically transmitted in rice and several other crops, opening up new opportunities to improve plant fitness by manipulating the seed-associated microbiome [8][9][10]. Similarly, in vegetative propagated crops, vegetative propagules (e.g., shoot tips or cuttings) carrying endophytes can also undergo vertical transmission and confer functions equal to or greater than those conferred by seeds on host plants [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Targeted Manipulation of Vertically Transmitted Endophytes to Confer Beneficial Traits in Grapevines

Chen,

Guo,

Wang

et al. 2024

Horticulturae

View full text Add to dashboard Cite

Vertically transmitted endophytes (VTEs) with multi-host-supporting functions are considered plant-acquired heritable traits, which can be manipulated to develop plants with the stable inheritance of these VTEs, defined here as ‘plant endophytic modification (PEM)’. To translate this hypothetical strategy into agricultural and horticultural practice, a PEM was carried out by introducing an anti-fungal pathogenic bacterium, Bacillus cereus (strain ID: ZX-2), into grapevine cuttings and growing the cuttings into vine plants. Bacterial strain XZ-2 is highly efficient in infecting grapevine cuttings and colonizing the interior of the infected cuttings, various parts of the subsequently established vine plants, and next year’s emerging vine shoots and leaves. Profiling the endophytic microbiota by high-throughput sequencing to the grapevines revealed that the colonization with exogenous ZX-2 slightly affected endophytic diversity, while significantly altering the composition and the predicted phenotypes of endophytic microbiota in ZX-2-modified grapevines (ZX-2mg). Most importantly, leaves (from both first- and second-year grapevines) of ZX-2mg conferred significantly higher (p < 0.001) anti-fungal pathogen abilities and a reduction in naturally occurring lesion area than leaves compared to the control grapevines. For all detected vines, a significant correlation (N = 37, r = 0.418; p < 0.01) between fungal pathogen inhibition rates and B. cereus (ZX-2) isolation rates was observed. In addition, ZX-2mg showed some growth promotion and a delay (15–20 days) in leaf abscission. The work established an alternative strategy to create plant lines with functions of specific VTEs via PEM, confirming the practical value of PEM in future organic farming systems.

show abstract

Section: Introductionmentioning

confidence: 99%

Targeted Manipulation of Vertically Transmitted Endophytes to Confer Beneficial Traits in Grapevines

Chen,

Guo,

Wang

et al. 2024

Horticulturae

View full text Add to dashboard Cite

show abstract

Editorial: Role of microorganisms in plant growth, stress amelioration and phytoremediation

Shah,

Yasin,

Altaf

et al. 2024

Plant Stress

View full text Add to dashboard Cite

The Biotechnological Potential of Plant Growth-Promoting Rhizobacteria Isolated from Maize (Zea mays L.) Cultivations in the San Martin Region, Peru

Ríos-Ruiz,

Tarrillo-Chujutalli,

Rojas-García

et al. 2024

Plants

View full text Add to dashboard Cite

Maize (Zea mays L.) is an essential commodity for global food security and the agricultural economy, particularly in regions such as San Martin, Peru. This study investigated the plant growth-promoting characteristics of native rhizobacteria isolated from maize crops in the San Martin region of Peru with the aim of identifying microorganisms with biotechnological potential. Soil and root samples were collected from maize plants in four productive zones in the region: Lamas, El Dorado, Picota, and Bellavista. The potential of twelve bacterial isolates was evaluated through traits, such as biological nitrogen fixation, indole acetic acid (IAA) production, phosphate solubilization, and siderophore production, and a completely randomized design was used for these assays. A completely randomized block design was employed to assess the effects of bacterial strains and nitrogen doses on maize seedlings. The B3, B5, and NSM3 strains, as well as maize seeds of the yellow hard ‘Advanta 9139’ variety, were used in this experiment. Two of these isolates, B5 and NSM3, exhibited outstanding characteristics as plant growth promoters; these strains were capable of nitrogen fixation, IAA production (35.65 and 26.94 µg mL−1, respectively), phosphate solubilization (233.91 and 193.31 µg mL−1, respectively), and siderophore production (34.05 and 89.19%, respectively). Furthermore, molecular sequencing identified the NSM3 isolate as belonging to Sporosarcina sp. NSM3 OP861656, while the B5 isolate was identified as Peribacillus sp. B5 OP861655. These strains show promising potential for future use as biofertilizers, which could promote more sustainable agricultural practices in the region.

show abstract

Comparing native and non-native seed-isolated strains for drought resilience in maize (Zea mays L.)

Cited by 3 publications

References 79 publications

Targeted Manipulation of Vertically Transmitted Endophytes to Confer Beneficial Traits in Grapevines

Targeted Manipulation of Vertically Transmitted Endophytes to Confer Beneficial Traits in Grapevines

Editorial: Role of microorganisms in plant growth, stress amelioration and phytoremediation

The Biotechnological Potential of Plant Growth-Promoting Rhizobacteria Isolated from Maize (Zea mays L.) Cultivations in the San Martin Region, Peru

Contact Info

Product

Resources

About