ArticleBMC plant biology2014
Increased expression of native cytosolic Cu/Zn superoxide dismutase and ascorbate peroxidase improves tolerance to oxidative and chilling stresses in cassava (Manihot esculenta Crantz).
Article in BMC plant biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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Who cites it
44 citing papers in PubMed, 142 citations in OpenAlex.
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- Pepper (Capsicum annuum L.) AP2/ERF transcription factor, CaERF2 enhances salt stress tolerance through ROS scavenging.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Validation of stay-green and stem reserve mobilization QTLs: physiological and gene expression approach.Frontiers in plant science · 2025Article
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- Novel insight into functions of ascorbate peroxidase in higher plants: More than a simple antioxidant enzyme.Redox biology · 2023Review
- The importance of plant growth-promoting rhizobacteria to increase air pollution tolerance index (APTI) in the plants of green belt to control dust hazards.Frontiers in plant science · 2023Article
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- Silicon- and Boron-Induced Physio-Biochemical Alteration and Organic Acid Regulation Mitigates Aluminum Phytotoxicity in Date Palm Seedlings.Antioxidants (Basel, Switzerland) · 2022Article
- Integrative Comparative Assessment of Cold Acclimation in Evergreen and Deciduous Iris Species.Antioxidants (Basel, Switzerland) · 2022Article
- Effects of ε-Poly-L-Lysine Combined with Wuyiencin as a Bio-Fungicide againstMicroorganisms · 2022Article
- Nanofertilizer Possibilities for Healthy Soil, Water, and Food in Future: An Overview.Frontiers in plant science · 2022Review
- Physiological and molecular mechanisms of the response of roots ofFrontiers in plant science · 2022Article
- Symbiotic responses of Lotus japonicus to two isogenic lines of a mycorrhizal fungus differing in the presence/absence of an endobacterium.The Plant journal : for cell and molecular biology · 2021Article
- Transcriptome Profiling of Maize (Genes · 2021Article
- The Drought-Mediated Soybean GmNAC085 Functions as a Positive Regulator of Plant Response to Salinity.International journal of molecular sciences · 2021Article
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCassava (Manihot esculenta Crantz) is a tropical root crop, and is therefore, extremely sensitive to low temperature; its antioxidative response is pivotal for its survival under stress. Timely turnover of reactive oxygen species (ROS) in plant cells generated by chilling-induced oxidative damages, and scavenging can be achieved by non-enzymatic and enzymatic reactions in order to maintain ROS homeostasis.
resultsTransgenic cassava plants that co-express cytosolic superoxide dismutase (SOD), MeCu/ZnSOD, and ascorbate peroxidase (APX), MeAPX2, were produced and tested for tolerance against oxidative and chilling stresses. The up-regulation of MeCu/ZnSOD and MeAPX2 expression was confirmed by the quantitative reverse transcriptase-polymerase chain reaction, and enzymatic activity analyses in the leaves of transgenic cassava plant lines with a single-transgene integration site. Upon exposure to ROS-generating agents, 100 μM ROS-generating reagent methyl viologen and 0.5 M H₂O₂, higher levels of enzymatic activities of SOD and APX were detected in transgenic plants than the wild type. Consequently, the oxidative stress parameters, such as lipid peroxidation, chlorophyll degradation and H₂O₂ synthesis, were lower in the transgenic lines than the wild type. Tolerance to chilling stress at 4°C for 2 d was greater in transgenic cassava, as observed by the higher levels of SOD, catalase, and ascorbate-glutathione cycle enzymes (e.g., APX, monodehydroascorbate reductase, dehydroascorbate reducatase and glutathione reductase) and lower levels of malondialdehyde content.
conclusionsThese results suggest that the expression of native cytosolic SOD and APX simultaneously activated the antioxidative defense mechanisms via cyclic ROS scavenging, thereby improving its tolerance to cold stress.
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