Showing papers in "Comptes Rendus Biologies in 2008"

TL;DR: Summer mortality was analyzed for the reference period 1998-2002 and for 2003, with major distortions occurred in the age distribution of the deaths, but no harvesting effect was observed in the months following August 2003.

TL;DR: The concept of the "oxidative window for germination" as mentioned in this paper restricts the occurrence of the cellular events associated with germination to a critical range of reactive oxygen species (ROS) level, enclosed by lower and higher limits.

TL;DR: In this article, the anatomical changes and drought-tolerance strategies under drought condition in higher plants were discussed, on the basis of which post-genomics and metabolomics will have further a practical prospect.

TL;DR: In this article, the authors compared phenolic contents and antioxidant activity in Cynara cardunculus L. organs and focus on leaf phenolic compounds identification by RP-HPLC and their antibacterial activity.

TL;DR: Main antioxidants in higher plants include glutathione, ascorbate, tocopherol, proline, betaine, and others, which are also information-rich redox buffers and important redox signaling components that interact with biomembrane-related compartments.

TL;DR: The seed system provides an appropriate model to study longevity and aging because it possesses a wide range of systems allowing them to survive in the dry state and to preserve a high germination ability.

TL;DR: Ksouri et al. as mentioned in this paper assessed the phenolic content and antioxidant activities of some Tunisian halophytes (Cakile maritima, Limoniastrum monopetalum, Mesembryanthemum crystallinum, M. edule, Salsola kali, and Tamarix gallica ), depending on biological (species, organ and developmental stage), environmental, and technical (extraction solvent) factors.

TL;DR: In this article, methanolic extracts from shoots and roots of Tunisian Nigella sativa were assayed for their antioxidant and antimutagenic activities, and the phenolic composition of these extracts was determined by RP-HPLC.

TL;DR: In this article, two varieties, rosea and alba, of Catharanthus roseus (L.) G. Don. were screened for their water use efficiency under two water regimes, viz. 60 and 100% filed capacity in the present study.

TL;DR: Buitink et al. as mentioned in this paper showed that the storage stability of seeds is related to the packing density and molecular mobility of the intracellular glass, suggesting that the physico-chemical properties of the glass provide stability for long-term survival.

TL;DR: Current goals include the breeding of yellow-seeded rapeseed lines with high content of seed oil and the exploitation of Arabidopsis knowledge will be presented and discussed.

TL;DR: A pot-culture experiment was conducted to estimate the ameliorating effect of triadimefon (TDM) on drought stress in sunflower (Helianthus annuus L.) plants as discussed by the authors.

TL;DR: Plants displayed higher values of water and potassium use efficiencies, leaf proline and Na+ concentrations, associated with lower leaf water potential, suggesting the ability of S. portulacastrum to use Na+ and proline for osmotic adjustment.

TL;DR: In this article, the authors investigated salt stress tolerance of three tetraploid rootstock genotypes (Poncirus trifoliata, Carrizo citrange, Cleopatra mandarin).

TL;DR: Six variable sequence markers are developed and analyzed to find out species boundaries in Hawaiian corals of the genus Pocillopora to identify five distinct mitochondrial lineages and these lineages are compatible with morphology.

TL;DR: It is suggested that this plant-growth retardant (triadimefon) has favourable effects on the reduction of plant height; it can thus be used for replacing manual hand pruning and for improving floral and vegetation colour in bedding plants like C. roseus.

TL;DR: An overview of the data on the structure of these proteins, which are scarce, and sometimes contradictory and on their functional roles can be found in this paper, where the putative role of some of them in controlling the size of lipid bodies is discussed.

TL;DR: In this article, the importance of 37 farm ponds for the biodiversity of Odonata in an agricultural landscape lacking natural wetlands in southwestern France was assessed and it was found that farm ponds captured 40% of the regional species pool, including both common and rare species.

TL;DR: Marco et al. as discussed by the authors studied the diversity and distribution of horticultural flora in 120 Mediterranean gardens belonging to three housing density types and found that twenty-four percent of the cultivated species are well adapted to the Mediterranean climate, and 21 species known to be invasive on the French territory have emanated from gardens.

TL;DR: Naija et al. as discussed by the authors showed that root primordia with a conical shape and several cell layers were present at day 7 and roots with organized tissue system emerged from the stem 10 days after root induction treatment.

TL;DR: Panda et al. as mentioned in this paper investigated whether mitochondria play a significant role in aluminium toxicity, using the mitochondria isolated from tobacco cells ( Nicotiana tabacum, non-chlorophyllic cell line SL) under Al stress.

TL;DR: Genes and/or QTL controlling seed protein content and sulfur-amino acid levels have been identified and will support attempts to engineer legume seed composition for added end user value.

TL;DR: The balance of the paternal and maternal genomes, which is under the control of the FIS polycomb group complex, was found to be of the utmost importance for the successful development of the seed.

TL;DR: Lead-exposed grass pea plants showed a six-fold, two-fold and three and a half-fold reduction in their root calcium, zinc and copper contents, respectively, which suggested that Lathyrus sativus L. was tolerant to a deficiency in essential nutrients and able to store large amounts of lead in its root tissues.

TL;DR: In this paper, a review summarizes the current knowledge of calcium signals involved in plant anti-drought and plant water use efficiency (WUE) and presents suggestions for future focus of study.

TL;DR: In this paper, the functional determinations of all genes that participate in drought adaptation or tolerance reactions are provided to provide an integrated understanding of the biochemical and physiological basis of stress responses in wheat.

TL;DR: In this paper, les technologies post-genomiques facilitent l'avenement d'une approche systemique permettant de decouvrir de nouvelles caracteristiques de la qualite des graines pouvant conduire a des applications potentielles, par exemple dans les programmes de selection.

TL;DR: Results indicate that malathion exposure induced lipid peroxidation LPO, a process of degradation of membrane lipids, involving the deterioration of the cellular integrity, leading to an insufficient elimination of free radicals, causing cytotoxic effects.

TL;DR: In this paper, the influence of sub-acute treatment with cadmium (Cd) on some parameters indicative of oxidative stress and DNA damage in tissues of pregnant female rats was investigated.

TL;DR: The function of the EMB genes in the particular context of eukaryote evolution driven by whole genome duplications and selective gene loss will be discussed.