Overview of Biotechnology-Derived Herbicide Tolerance and Insect Resistance Traits in Plant Agriculture

Mall, Tejinder; Gupta, Manju; Dhadialla, Tarlochan S.; Sarria, Rodrigo

doi:10.1007/978-1-4939-8778-8_21

Cited by 25 publications

(12 citation statements)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, the spraying technique is the main strategy for the application of pesticides, even though it has been pointed out that it is the least efficient (Bateman and Chapple 2001); it has been estimated that only 1% of insecticide sprays reach the target insect (Pimentel and Edwards 1982) while the rest can negatively impact nontarget organisms (alternative hosts). Also, the "management" of weeds bets on preventive application, where the crop is practically kept free of weeds throughout the cycle (Heinemann et al 2014;Mall et al 2019). In this way, the two main causes of the appearance of pests are maintained: monoculture and pesticides.…”

Section: Perspectivesmentioning

confidence: 99%

“…This tool could allow the predictive use of herbicides instead of the preventive practices commonly used in world agriculture. Thus, residual herbicides such as atrazine and, more recently, glyphosate-resistant transgenic plant varieties promise to keep crops weed-free for long periods of time (Cortez-Madrigal 2004;Heinemann et al 2014;Mall et al 2019). Of course, a natural response is not long in coming and so, in these highly disturbed agricultural systems, a strong imbalance between populations occurs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhancing biological control: conservation of alternative hosts of natural enemies

Cortéz-Madrigal

Gutiérrez-Cárdenas

2023

Egypt J Biol Pest Control

View full text Add to dashboard Cite

Background There is a consensus that the conservation of natural enemies is the most important biological control strategy, but it has also been the least attended. The reason is simple: there is a strong contradiction between modern agriculture and biological control. Various strategies have been proposed for the conservation of natural enemies, among others, protection against pesticides and establishment of nectar plants as alternative food. Less attention has been paid to the conservation of alternative hosts for natural enemies. Main body Natural enemies are not exclusive to pests, on the contrary, numerous species require alternative prey and hosts for their prevalence. Their conservation is a strategy widely referenced in scientific literature; however, this idea is not consistent with the studies developed. From 1973 to 2021, only 21 studies that emphasized the use of alternative hosts were recorded. Most focused on single phytophagous–natural enemy species, and little attention was given to the plant–phytophagous relationship. For example, Asclepias curassavica (Apocynaceae) hosts more than nine species of specialist phytophagous; and they, in turn, attracted 24 species of natural enemies. Although different studies demonstrate the potential of alternative hosts, some presume an adverse or doubtful effect on pest control; for example, additional vegetation in agroecosystems could act as a source, but also as a sink for natural enemies. This analysis tries to fit biological control to the modern agricultural paradigm, and not the other way around, as suggested by ecological theory. We support the idea that conservation biological control should be directed toward the conservation of multiple species, with the aim of controlling not only pest, but also the self-regulation of the agroecosystem. The path that should be followed by the study and application of alternative hosts as a strategy of biological control by conservation is discussed. Conclusion The wide diversity of non-pest insect species suggests an enormous potential for their exploitation as alternative hosts. The evaluation of host plants of specialized phytophagous species could improve biological control and reduce the risk of pests for crops. This strategy would partly fill the huge gap that exists in modern agroecosystems in terms of biological diversity.

show abstract

Section: Perspectivesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancing biological control: conservation of alternative hosts of natural enemies

Cortéz-Madrigal

Gutiérrez-Cárdenas

2023

Egypt J Biol Pest Control

View full text Add to dashboard Cite

show abstract

“…Genetically engineered crops having insect-resistance and herbicide tolerance play a great part in promoting global agricultural productivity and food security. At the same time, stacking two transgenic events through breeding does not introduce greater variation than traditional breeding processes [37][38][39].…”

Section: Photosynthesis and Respirationmentioning

confidence: 99%

Production of EPSPS and bar gene double-herbicide resistant castor (Ricinus communis L.)

Zhao

Luo

et al. 2020

Biotechnology & Biotechnological Equipment

View full text Add to dashboard Cite

Castor (Ricinus communis L.) is one of the world's top ten oil crops. China is the second largest producer of castor beans, but China's castor bean acreage has been declining. A principal reason for this decline is the prevalence of weeds and the absence of herbicide resistant varieties of castor plants. In this study, we used Agrobacterium-mediated gene transfer to introduce the EPSPS (5-enolpyruvylshikimate-3-phosphate synthase) gene, which confers resistance to glyphosate, and the Bar (phosphinothricin N-acetyltransferase) gene, encoding resistance to glufosinate, into castor 2129 (high stem excellent recovery line) and CSR 181 (dwarf stem excellent recovery line). The transgenic plants exhibited significantly increased expression of the EPSPS and Bar genes and significantly increased resistance to glyphosate and glufosinate. Proteomic analysis showed differences in the amounts of 20 proteins in the dwarf stem transgenic plants. Nine of these proteins are involved in photosynthesis and indirectly related to the mechanism of action of the Bar gene. Eight proteins are involved in defense, repair, stress response, oxidative phosphorylation, and metabolic pathways and are indirectly related to the mechanism of action of the EPSPS gene. These results provide a foundation for the preparation of high herbicide resistant castor varieties.

show abstract

“…Most commercially adopted genes have originated from bacteria and provide multiple trait improvement mechanisms from bacteria into crop plant species [29]. Many genes involved in insect resistance (cry1A, cry2A, cry1F, cry3A, cry3B, cry34A, cry35A, and vip3A and their variants) have been identified from Bacillus thuringiensis (Bt) and have been introduced into commercial transgenic crops to provide resistance to lepidopteran and coleopteran pests [30]. The genes that encode the phosphinothricin acetyltransferase (PAT) and 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme variants that confer glufosinate and glyphosate tolerance to plants, respectively, were also cloned from bacteria [30].…”

Section: Introductionmentioning

confidence: 99%

“…Many genes involved in insect resistance (cry1A, cry2A, cry1F, cry3A, cry3B, cry34A, cry35A, and vip3A and their variants) have been identified from Bacillus thuringiensis (Bt) and have been introduced into commercial transgenic crops to provide resistance to lepidopteran and coleopteran pests [30]. The genes that encode the phosphinothricin acetyltransferase (PAT) and 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme variants that confer glufosinate and glyphosate tolerance to plants, respectively, were also cloned from bacteria [30]. The first commercial drought tolerance maize included the MON 87460 event, in which cold-shock protein B (CSPB) cloned from Bacillus subtilis was expressed [31,32].…”

Section: Introductionmentioning

confidence: 99%

The bacterial potassium transporter gene MbtrkH improves K+ uptake in yeast and tobacco

Bao-Juan

Zhang

et al. 2020

PLoS ONE

View full text Add to dashboard Cite

K + is an essential nutrient for plant growth and is responsible for many important physiological processes. K + deficiency leads to crop yield losses, and overexpression of K + transporter genes has been proven to be an effective way to resolve this problem. However, current research on the overexpression of K + transporter genes is limited to plant sources. TrkH is a bacterial K + transporter whose function generally depends on the regulation of TrkA. To date, whether TrkH can improve K + uptake in eukaryotic organisms is still unknown. In this study, a novel MbtrkH gene was cloned from marine microbial metagenomic DNA. Functional complementation and K +-depletion analyses revealed that MbTrkH functions in K + uptake in the K +-deficient yeast strain CY162. Moreover, K +-depletion assays revealed that MbtrkH overexpression improves plant K + uptake. K + hydroponic culture experiments showed that, compared with WT tobacco lines, MbtrkH transgenic tobacco lines had significantly greater fresh weights, dry weights and K + contents. These results indicate that MbTrkH promotes K + uptake independently of TrkA in eukaryotes and provide a new strategy for improving K +-use efficiency in plants.

show abstract

Overview of Biotechnology-Derived Herbicide Tolerance and Insect Resistance Traits in Plant Agriculture

Cited by 25 publications

References 88 publications

Enhancing biological control: conservation of alternative hosts of natural enemies

Enhancing biological control: conservation of alternative hosts of natural enemies

Production of EPSPS and bar gene double-herbicide resistant castor (Ricinus communis L.)

The bacterial potassium transporter gene MbtrkH improves K+ uptake in yeast and tobacco

Contact Info

Product

Resources

About