Abstract
Seed endophytes in maize, which facilitate the transmission of microorganisms from one plant generation to the next, may play a crucial role in plant protection and growth promotion. This study aimed to investigate the effects of various maize varieties on the communities of endophytic bacteria in seeds and germinating roots. This study utilized Illumina high-throughput sequencing technology to examine the structural and diversity differences of endophytic bacterial communities within seed maize (BY1507), silage maize (QQ446), and wild maize (Teosinte) in both seeds and germinating roots. The results showed that 416 bacterial genera were detected, with Pantoea, Lachnospiraceae, Pararhizobium, Enterobacteriaceae, Stenotrophomonas, and Pseudonocardia being the most prevalent (relative abundance > 10%) at the genus level. No significant difference was observed in diversity indices (Chao1, ACE, Shannon, and Simpson) of seed endophytes among BY1507, QQ446, and Teosinte. The Shannon and Simpson indices for the germinating root endophyte from the wild variety (Teosinte) were significantly higher than the domesticated varieties (BY1507 and QQ446). PCoA revealed a notable overlap in the endophytic bacterial communities from the seeds of BY1507, QQ446, and Teosinte. Yet, clustering patterns were found. Co-occurrence network analysis showed that BY1507, QQ446, and Teosinte share a notable proportion of shared endophytic bacteria (>30%) between the seeds and germinating roots. This investigation elucidates the characteristics of endophytic microbial communities of seeds and germinating roots with seed maize, silage maize, and wild maize, offering data for future research on the physiological ecological adaptation of these endophytic microbial communities.
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Claims 7
Claim · model-written summary
Maize seed and root samples contained 416 bacterial genera.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize Seeds and Germinating Roots”
e0“416 bacterial genera were detected”
Claim · model-written summary
Pantoea, Lachnospiraceae, Pararhizobium, Enterobacteriaceae, Stenotrophomonas, and Pseudonocardia were most prevalent, above 10% relative abundance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize Seeds and Germinating Roots”
e0“Pantoea, Lachnospiraceae, Pararhizobium, Enterobacteriaceae, Stenotrophomonas, and Pseudonocardia being the most prevalent (relative abundance > 10%) at the genus level”
Claim · model-written summary
Seed endophyte Chao1, ACE, Shannon, and Simpson diversity indices did not differ significantly among the three varieties.
- Material
- BY1507, QQ446, and Teosintee0
- Outcome
- diversity indices (Chao1, ACE, Shannon, and Simpson)e0
- Direction
- No significant differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant difference was observed in diversity indices (Chao1, ACE, Shannon, and Simpson) of seed endophytes among BY1507, QQ446, and Teosinte”
t0“Maize Seeds”
Claim · model-written summary
Teosinte germinating-root endophytes had significantly higher Shannon and Simpson indices than the domesticated varieties.
- Material
- Teosintee0
- Organ / stage
- germinating roote0
- Outcome
- Shannon and Simpson indicese0
- Direction
- highere0
- Comparator
- BY1507 and QQ446e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Shannon and Simpson indices for the germinating root endophyte from the wild variety (Teosinte) were significantly higher than the domesticated varieties (BY1507 and QQ446)”
t0“Maize”
Claim · model-written summary
PCoA showed notable overlap among the seed bacterial communities of the three maize varieties.
- Material
- BY1507, QQ446, and Teosintee0
- Organ / stage
- seedse0
- Outcome
- notable overlap in the endophytic bacterial communitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PCoA revealed a notable overlap in the endophytic bacterial communities from the seeds of BY1507, QQ446, and Teosinte”
t0“Maize”
Claim · model-written summary
Seed endophyte communities also formed clustering patterns.
- Outcome
- clustering patternse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yet, clustering patterns were found”
t0“Maize Seeds”
Claim · model-written summary
Each maize variety shared over 30% of endophytic bacteria between seeds and germinating roots.
- Material
- BY1507, QQ446, and Teosintee0
- Organ / stage
- seeds and germinating rootse0
- Outcome
- shared endophytic bacteriae0
- Value
- >30%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BY1507, QQ446, and Teosinte share a notable proportion of shared endophytic bacteria (>30%) between the seeds and germinating roots”
t0“Maize”