Related Experiment Video
Updated: May 5, 2026
10:52
Protocols for Robust Herbicide Resistance Testing in Different Weed Species
Published on: July 2, 2015
14.6K
Nanobody Mediated Atrazine Resistance in Plants
Yujie Chen1, Qingqing He1, Simin Shen2
1College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, China.
Journal of Agricultural and Food Chemistry
|July 9, 2024
Summary
This study introduces the first plant-based nanobody for herbicide resistance. Transformed Arabidopsis thaliana demonstrated effective resistance to atrazine, paving the way for herbicide-resistant crops.
Area of Science:
- Plant biotechnology
- Molecular biology
- Agricultural science
Background:
- Recombinant antibodies for herbicide resistance are promising but underdeveloped.
- Nanobodies offer potential due to their small size and high affinity.
Purpose of the Study:
- To develop and characterize a nanobody for atrazine resistance in plants.
- To assess the efficacy and accumulation of the nanobody in Arabidopsis thaliana.
Main Methods:
- Transformation of Arabidopsis thaliana with an atrazine nanobody gene fused to a GFP tag.
- Confirmation of gene expression using PCR, ELISA, and immunoblotting.
- Assessment of herbicide resistance in T3 homozygous lines.
Main Results:
- Successful expression and accumulation of the nanobody in various cellular compartments (nucleus, cytoderm, cytosol).
- Plant-expressed nanobody exhibited comparable affinity, sensitivity, and selectivity to E. coli-expressed nanobody.
- T3 homozygous lines showed dose-dependent resistance to atrazine up to 380 g ai/ha.
Conclusions:
- This is the first report of a nanobody conferring herbicide resistance in plants.
- High-affinity nanobody gene expression is a viable strategy for developing herbicide-resistant crops.
- This approach could serve as a valuable tool for studying plant physiology.
Related Concept Videos
01:27Bioavailability Enhancement: Drug Permeability Enhancement
352
After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt secretion,...
352
01:05Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
332
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
332
01:24Site-Targeted Drug Delivery Systems: Polymeric Carriers
160
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
160
01:24iChip
105
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
105