Maize seed endophytes

Wallace, Jason G.

doi:10.1111/mpp.13278

Cited by 15 publications

(3 citation statements)

References 77 publications

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“…Some of the bacterial genera found in this work have been previously described as culturable endophytes in maize and teosinte plants with relevant phenotypic traits for plant-microorganism interaction, plant growth promotion, biological control, and adaptation to the environment ( Chowdhury et al., 2019 ; Mehta et al., 2021 ; Wallace, 2023 ). However, many non-cultured bacteria genera no previously associated with teosinte and maize endophytes were also detected in the seed endosphere of teosinte, such as Nitrospira, Scalindua , and Phytoplasma , among others.…”

Section: Discussionmentioning

confidence: 85%

Unlocking the hidden potential of Mexican teosinte seeds: revealing plant growth-promoting bacterial and fungal biocontrol agents

De-la-Vega-Camarillo,

Hernández-García,

Villa-Tanaca

et al. 2023

Front. Plant Sci.

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The bacterial component of plant holobiont maintains valuable interactions that contribute to plants’ growth, adaptation, stress tolerance, and antagonism to some phytopathogens. Teosinte is the grass plant recognized as the progenitor of modern maize, domesticated by pre-Hispanic civilizations around 9,000 years ago. Three teosinte species are recognized: Zea diploperennis, Zea perennis, and Zea mays. In this work, the bacterial diversity of three species of Mexican teosinte seeds was explored by massive sequencing of 16S rRNA amplicons. Streptomyces, Acinetobacter, Olivibacter, Erwinia, Bacillus, Pseudomonas, Cellvibrio, Achromobacter, Devosia, Lysobacter, Sphingopyxis, Stenotrophomonas, Ochrobactrum, Delftia, Lactobacillus, among others, were the bacterial genera mainly represented. The bacterial alpha diversity in the seeds of Z. diploperennis was the highest, while the alpha diversity in Z. mays subsp. mexicana race was the lowest observed among the species and races. The Mexican teosintes analyzed had a core bacteriome of 38 bacterial genera, including several recognized plant growth promoters or fungal biocontrol agents such as Agrobacterium, Burkholderia, Erwinia, Lactobacillus, Ochrobactrum, Paenibacillus, Pseudomonas, Sphingomonas, Streptomyces, among other. Metabolic inference analysis by PICRUSt2 of bacterial genera showed several pathways related to plant growth promotion (PGP), biological control, and environmental adaptation. The implications of these findings are far-reaching, as they highlight the existence of an exceptional bacterial germplasm reservoir teeming with potential plant growth promotion bacteria (PGPB). This reserve holds the key to cultivating innovative bioinoculants and formidable fungal antagonistic strains, thereby paving the way for a more sustainable and eco-friendly approach to agriculture. Embracing these novel NGS-based techniques and understanding the profound impact of the vertical transference of microorganisms from seeds could revolutionize the future of agriculture and develop a new era of symbiotic harmony between plants and microbes.

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Section: Discussionmentioning

confidence: 85%

Unlocking the hidden potential of Mexican teosinte seeds: revealing plant growth-promoting bacterial and fungal biocontrol agents

De-la-Vega-Camarillo,

Hernández-García,

Villa-Tanaca

et al. 2023

Front. Plant Sci.

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“…The choice of seeds for microbes may be due to their impacts on seed conservation, their growth potential and growth enhancement in different soils (Wallace, 2023 ). On one hand, microbes associated or within seeds might have higher survival chances under harsh conditions, considering the unique physical attributes of the seed (Bergmann & Leveau, 2022 ).…”

Section: Why Do Microbes Choose Seeds As Their Destination and When D...mentioning

confidence: 99%

The seed microbiomes of staple food crops

Sun,

Adeleke,

Shi

et al. 2023

Microbial Biotechnology

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The scientific community increasingly recognized that seed microbiomes are important for plant growth and nutrition. The versatile roles and modulating properties that microbiomes hold in the context of seeds seem to be an inherited approach to avert adverse conditions. These discoveries attracted extensive interest, especially in staple food crops (SFCs) where grain was consumed as food. Along with the rapid expansion of population and industrialization that posed a severe challenge to the yield of SFCs, microbiologists and botanists began to explore and engineer seed microbiomes, for safer and more fruitful grain production. To utilize seed microbiomes, we present an overall review of the most updated scientific literature on three representative SFCs (wheat, rice and maize) using the 5W1H (Which, Where, What, Why, When and How) method that provides a comprehensive understanding of the issue. These include which factors determine the composition of seed microbiomes? Where do seed microbiomes come from? What are these seed microbes? Why do these microbes choose seeds as their destination and when do microbes settle down and become seed communists? In addition, how do seed microbiomes work and can be manipulated effectively? Therefore, answering the aforementioned questions regarding SFCs seed microbiomes remain fundamental in bridging endophytic research gaps and harnessing their ecological services.

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“…This timely review discusses the reasons for the disease's re‐emergence and summarizes its biology, taxonomy, and methods for early detection and control. Finally, Wallace reviews our rapidly advancing knowledge of the maize seed microbiome, including what we know about its composition transmission and the interactions with the host and between the microorganisms themselves ( 2023 , this issue).…”

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confidence: 99%