Bacterias endófitas de la raíz en líneas de maíces tolerantes y susceptibles a sequía
Bibliographic record
Abstract
<p>El maíz (<em>Zea mays</em>) ocupa el segundo lugar como alimento en el mundo y la sequía limita su productividad. Las plantas albergan bacterias endófitas que influyen en la sanidad y tolerancia a la sequía. El objetivo de esta investigación fue estimar la densidad y diversidad de las bacterias endófitas cultivables de la raíz en siete líneas homocigóticas de maíces tolerantes y siete susceptibles a sequía en tres localidades de México durante tres ciclos del cultivo. La densidad y diversidad de las poblaciones bacterianas se evaluó mediante conteo directo en placas y se identificaron por PCR. Los resultados identificaron tres grupos de bacterias endófitas: 1) altamente frecuentes (<em>Bacillus subtilis</em>, <em>Bacillus megaterium</em> y <em>Pseudomonas geniculata)</em>, 2)<em> </em>frecuentes (<em>Bacillus firmus</em>, <em>Pseudomonas hibiscola</em> y <em>Sinorhizobium meliloti)</em> y 3) baja frecuencia (<em>Acinetobacter soli, Stenotrophomonas maltophila </em>y<em> Burkholderia gladioli</em>. El análisis de varianza (ANOVA) mostró diferencias significativas (p?0,05)<strong> </strong>en la densidad (<sub>Log10 </sub>UFC g<sup>-1</sup> de raíz) de población por localidad, ciclo de cultivo, días después de siembra y líneas de maíz. La densidad de <em>Bacillus subtilis, Pseudomonas hibiscola </em>en la localidad de El<em> </em>Batán<em> y Bacillus megaterium, Sinorhizobium meliloti</em> en Tlaltizapán, fueron significativamente mayores en las líneas de maíz tolerantes que en las susceptibles a sequía. </p>
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.009 | 0.006 |
| Meta-epidemiology (narrow) | 0.002 | 0.003 |
| Meta-epidemiology (broad) | 0.005 | 0.001 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.004 | 0.001 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".