Evidence map›Paper›PMID 30679266›Full record

ArticlePlant physiology2019

MoChlo: A Versatile, Modular Cloning Toolbox for Chloroplast Biotechnology.

Alessandro Occhialini, Agnieszka A Piatek, Alexander C Pfotenhauer, Taylor P Frazier, C Neal Stewart, Scott C Lenaghan

Abstract read
In one paragraph

Article in Plant physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Advancements in Golden Gate Cloning: A Comprehensive Review.Methods in molecular biology (Clifton, N.J.) · 2025
    Review
  9. Review
  10. Article
  11. Article
  12. Golden Gate Cloning of MoClo Standard Parts.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Plastid engineering using episomal DNA.Plant cell reports · 2023
    Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Alessandro OcchialiniDepartment of Food Science, University of Tennessee, Knoxville, Tennessee 37996.ORCID 0000-0002-1162-798X
Agnieszka A PiatekDepartment of Plant Sciences, University of Tennessee, Knoxville, Tennessee 37996.
Alexander C PfotenhauerDepartment of Food Science, University of Tennessee, Knoxville, Tennessee 37996.
Taylor P FrazierCenter for Agricultural Synthetic Biology, Institute of Agriculture, University of Tennessee, Knoxville, Tennessee 37996.
C Neal StewartCenter for Agricultural Synthetic Biology, Institute of Agriculture, University of Tennessee, Knoxville, Tennessee 37996.ORCID 0000-0003-3026-9193
Scott C LenaghanDepartment of Food Science, University of Tennessee, Knoxville, Tennessee 37996 slenagha@utk.edu.ORCID 0000-0002-7539-1726

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plant synthetic biology is a rapidly evolving field with new tools constantly emerging to drive innovation. Of particular interest is the application of synthetic biology to chloroplast biotechnology to generate plants capable of producing new metabolites, vaccines, biofuels, and high-value chemicals. Progress made in the assembly of large DNA molecules, composing multiple transcriptional units, has significantly aided in the ability to rapidly construct novel vectors for genetic engineering. In particular, Golden Gate assembly has provided a facile molecular tool for standardized assembly of synthetic genetic elements into larger DNA constructs. In this work, a complete modular chloroplast cloning system, MoChlo, was developed and validated for fast and flexible chloroplast engineering in plants. A library of 128 standardized chloroplast-specific parts (47 promoters, 38 5' untranslated regions [5'UTRs], nine promoter:5'UTR fusions, 10 3'UTRs, 14 genes of interest, and 10 chloroplast-specific destination vectors) were mined from the literature and modified for use in MoChlo assembly, along with chloroplast-specific destination vectors. The strategy was validated by assembling synthetic operons of various sizes and determining the efficiency of assembly. This method was successfully used to generate chloroplast transformation vectors containing up to seven transcriptional units in a single vector (∼10.6-kb synthetic operon). To enable researchers with limited resources to engage in chloroplast biotechnology, and to accelerate progress in the field, the entire kit, as described, is available through Addgene at minimal cost. Thus, the MoChlo kit represents a valuable tool for fast and flexible design of heterologous metabolic pathways for plastid metabolic engineering.

Indexed as

BiotechnologyChloroplastsCloning, MolecularGenetic VectorsMetabolic EngineeringMetabolic Networks and PathwaysPromoter Regions, GeneticSolanum tuberosumSynthetic BiologyTransformation, Genetic

Identifiers

PMID30679266
PMCPMC6393787

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.