Effect of Copper Toxicity on Root Morphology, Ultrastructure, and Copper Accumulation in Moso Bamboo (Phyllostachys pubescens)
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Junren Chen
Abstract
A hydroponic culture experiment was conducted to study the effect of copper toxicity on root morphology, ultrastructure, and copper accumulation in Moso bamboo (Phyllostachys pubescens). Root ultrastructure of Moso bamboo was studied by transmission electron microscopy and scanning electron microscopy. Application of 200 μM Cu resulted in an accumulation of 810 mg kg-1 dry weight and 91 mg kg-1 dry weight Cu in roots and shoots, respectively. The majority of the plants did not survive the application of 400 μM Cu. Biomass production declined consistently with application of each additional increment of Cu. Root growth was more severely inhibited than shoot growth. Cu adversely affected the root morphology of the plants, however, root surface area and number of root tips increased slightly at low levels of Cu. Root cell ultrastructure and organelles changed significantly under Cu stress, in particular, cell walls, mitochondria, and xylem parenchyma were affected.
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Articles in the same Issue
- Three New Di-O-glycosyl-C-glucosyl Flavones from the Leaves of Caesalpinia ferrea Mart.
- Amino Phenolics from the Fruit of the Argan Tree Argania spinosa (Skeels L.)
- Synthesis and Antimicrobial Evaluation of 2-(p-Substituted Phenyl)-5-[(4-substituted piperazin-1-yl)acetamido]-benzoxazoles
- Antibacterial Flavanones and Dihydrochalcones from Macaranga trichocarpa
- Chemical Constituents and Biological Activities of Cirsium leucopsis, C. sipyleum, and C. eriophorum
- Antihyperglycemic Activities of Extracts of the Mistletoes Plicosepalus acaciae and P. curviflorus in Comparison to their Solid Lipid Nanoparticle Suspension Formulations
- Effect of Copper Toxicity on Root Morphology, Ultrastructure, and Copper Accumulation in Moso Bamboo (Phyllostachys pubescens)
- Evaluation of Cucurbita maxima Extract against Scopolamine- Induced Amnesia in Rats: Implication of Tumour Necrosis Factor Alpha
- Effect of Debarking Water from Norway Spruce (Picea abies) on the Growth of Five Species ofWood-Decaying Fungi
