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Carrizo citrange ( Citrus sinensis × Poncirus trifoliata ) is a citrus hybrid widely used as a rootstock, whose genetic manipulation to improve different growth characteristics is of high agronomic interest. In this work, transgenic Carrizo citrange plants have been produced overexpressing sense...
Recent design-based stereological methods that can be applied to thick sections cut in an arbitrary direction are presented and their implementation for measuring mesophyll anatomical characteristics is introduced. These methods use software-randomized virtual 3D probes, such as disector and...
The gaseous environment surrounding parenchyma in woody tissue is low in O 2 and high in CO 2 , but it is not known to what extent this affects respiration or might play a role in cell death during heartwood formation. Sapwood respiration was measured in two conifers and three angiosperms...
Developmental and biophysical leaf characteristics that influence post-harvest shelf life in lettuce, an important leafy crop, have been examined. The traits were studied using 60 informative F 9 recombinant inbed lines (RILs) derived from a cross between cultivated lettuce ( Lactuca sativa cv....
Reactive oxygen species (ROS) production by an NADPH oxidase (NOX) encoded by AtrbohC/RHD2 is required for root hair growth in Arabidopsis thaliana. ROP ( R HO o f p lants) GTPases are also required for normal root hair growth and have been proposed to regulate ROS production in plants....
The relationship between nitric oxide (NO) and salicylic acid (SA) was investigated in Arabidopsis thaliana . Here it is shown that SA is able to induce NO synthesis in a dose-dependent manner in Arabidopsis . NO production was detected by confocal microscopic analysis and spectrofluorometric...
There is circumstantial evidence implicating reactive oxygen species (ROS) in the highly ordered temporal and spatial regulation of expression of the Cat and Sod antioxidant genes during seed development and germination in maize. In order to understand and provide experimental data for the...
This study investigated whether and how polyamines (PAs) in rice ( Oryza sativa L.) plants are involved in drought resistance. Six rice cultivars differing in drought resistance were used and subjected to well-watered and water-stressed treatments during their reproductive period. The activities...
Cellodextrins (CD), water-soluble derivatives of cellulose composed of β-1,4 glucoside residues, have been shown to induce a variety of defence responses in grapevine ( Vitis vinifera L.) cells. The larger oligomers of CD rapidly induced transient generation of H 2 O 2 and elevation in free...
The formation of arsenic–phytochelatin (As–PC) complexes is thought to be part of the plant detoxification strategy for arsenic. This work examines (i) the arsenic (As) concentration-dependent formation of As–PC complex formation and (ii) redistribution and metabolism of As after arrested...
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