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Role of peroxisomes in the oxidative injury induced by 2,4-dichlorophenoxyacetic acid in leaves of pea plants
TLDR
Results suggest that peroxisomes might contribute to 2,4-D toxicity in pea leaves by overproducing cell-damaging ROS and by participating actively in 2, 4-D-induced leaf senescence.
The vaccine adjuvant extra domain A from fibronectin retains its proinflammatory properties when expressed in tobacco chloroplasts
TLDR
Results demonstrate that chloroplasts are an attractive production vehicle for the expression of this protein vaccine adjuvant from the tobacco plastome, a promising strategy in molecular farming.
HAD hydrolase function unveiled by substrate screening: enzymatic characterization of Arabidopsis thaliana subclass I phosphosugar phosphatase AtSgpp
TLDR
Based on both, substrate lax specificity and gene expression, the physiological function of AtSgpp in housekeeping detoxification, modulation of sugar-phosphate balance and Pi homeostasis, is provisionally assigned.
Organ-specific effects of the auxin herbicide 2,4-D on the oxidative stress and senescence-related parameters of the stems of pea plants
TLDR
Results suggest that oxidative stress and senescence are not involved in the mechanism of toxicity of 2,4-D in the stems of pea plants, and that these phenomena are not whole-plant toxicity mechanisms for auxin herbicides in susceptible plants.
Sequence Determinants of Substrate Ambiguity in a HAD Phosphosugar Phosphatase of Arabidopsis Thaliana
TLDR
Additional sequence determinants underpinning the divergent evolutionary selection exerted on the substrate affinity of both enzymes were explored and it was indicated that promiscuity is compromised.
Role of reactive oxygen species in auxin herbicide phytotoxicity: current information and hormonal implications — are gibberellins, cytokinins, and polyamines involved?
TLDR
It has been suggested that reactive oxygen species participate in the injury and death of sensitive plants treated with auxin herbicides, and a role for xanthine oxidase (XOD) and for peroxisomes in the oxidative stress and senescence induced by auxin Herbicides in the leaves ofsensitive plants is suggested.
The kinetic analysis of the substrate specificity of motif 5 in a HAD hydrolase-type phosphosugar phosphatase of Arabidopsis thaliana
TLDR
The Arabidopsis thaliana gene AtSgpp, encodes a protein whose sequence motifs and expected structure reveal that it belongs to the HAD hydrolases subfamily I, with the C1-type cap domain, and in the presence of Mg2+ ions, the enzyme has a phosphatase activity over a wide range of phosphosugar substrates.
Role of peroxisomes in the oxidative injury induced by 2,4-dichlorophenoxyacetic acid in leaves of pea plants
The role of peroxisomes in the oxidative injury induced by the auxin herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) in leaves of pea (Pisum sativum L.) plants was studied. Applications of (2,4-D)
Supra-physiological levels of Gibberellins/DELLAs alter the patterning, morphology and abundance of root hairs in root tips of A. thaliana seedlings
TLDR
Results suggest that, in seedlings of A. thaliana, the GAs/DELLAs might have a role in regulating the patterning, morphology and abundance of root hairs by acting from the sub-epidermal tissues of the root.
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