Showing papers in "Plant Science in 2004"

TL;DR: It is concluded that although there are a number of promising selection criteria, the complex physiology of salt tolerance and the variation between species make it difficult to identify single criteria.

TL;DR: Based on the results of the experiments reported herein, the use of plant growth-promoting bacteria such as A. piechaudii ARV8 may provide a means of facilitating plant growth in arid environments.

TL;DR: Higher activities of SOD, GPX, APX, DHAR and GR in salt-stressed leaves induced by Si addition may protect the plant tissues from membrane oxidative damage under salt stress, thus mitigating salt toxicity and improving the growth of cucumber plants.

TL;DR: The accumulation of anthocyanins was enhanced by ABA treatment and suppressed by NAA and shading, and there were significant differences in the mRNA copy number among three Chss, between two Chis, and two F3hs during the coloration of grape berry skins.

TL;DR: Results indicate that the salt tolerance of wheat and grain yield in saline soils can be improved by enhancing the level of the vacuolar Na + /H + antiporter gene AtNHX1 from Arabidopsis thaliana.

TL;DR: The grape has been classified as a non-climacteric fruit whose ripening is thought to be ethylene independent, but it is shown here that a transient increase of endogenous ethylene production occurs just before veraison (i.e. inception of ripening).

TL;DR: Results indicated that the production of HVA1 proteins might have helped in better performance of transgenic rice plants by protecting cell membrane from injury under drought stress.

TL;DR: Results suggested that the overexpressed Cu/Zn-SOD enhances the chloroplast antioxidant system.

TL;DR: It is concluded that plant could grow under chromium stress and protect themselves from phytotoxicity of Cr by altering various metabolic processes.

TL;DR: Three different cultural practices are today considered to be of prime importance for combating this disease and the production of mycotoxins: deep tillage, the choice of the preceding crop in the rotation and the choiceof appropriate cultivar, as varietal effects exist.

TL;DR: Results suggest differential response to AA and H 2 O 2 signaling by Cr(III) and Cr(VI) and that AA in combination with APX was more effective in mitigating oxidative stress as against the role of GSH as an antioxidant.

TL;DR: The ion distribution between roots and leaves of cucumber plants suggested that the uptake and the upward translocation of these ions could be altered by copper excess, and the decrease in potassium content may have played a crucial role in the inhibition of leaf expansion.

TL;DR: The first successful transfer of T-DNA of Agrobacterium tumefaciens carrying the genes coding for β-glucuronidase, green fluorescent protein and hygromycin phosphotransferase to the nuclear genome of the green alga Chlamydomonas reinhardtii is reported.

TL;DR: The Km values obtained were similar to the reported values by the in vitro method, which confirms the feasibility of the anaerobic method for determining NRA and NMP and implies that there is a threshold of nitrate concentration in MP (NMP) to induce NRA.

TL;DR: Stress-inducible expression of the P5CS transgene showed significant advantages over the constitutive expression in increasing the biomass production of transgenic rice grown in soil under stress conditions.

TL;DR: Investigation of cell wall modifying capacity and enzyme composition of rapid and slow-softening tropical fruits during ripening found extensive pectin modifications occurred in ripening tomato, mango and papaya, explaining that endo-PG might not be the determining factor of differential softening.

TL;DR: It is concluded that the combined analysis of morphological traits, volatile oil composition and molecular markers represents the optimal approach to verify taxonomy and to correlate it with agronomic traits.

TL;DR: Results indicate that B. juncea cv.

TL;DR: Betaine aldehyde dehydrogenase gene expression (BADH mRNA) in Salicornia europaea and Suaeda maritima leaves increased with salt stress and the expression pattern coincided with the observed betaine accumulation, which was associated with a greater capacity for osmotic adjustment.

TL;DR: The chilling tolerance, expressed in cell membrane damage, degree of chilling injury, survival rate, and photosynthesis was enhanced in plants of transgenic lines 2, 3, 4 and 5 as compared with wild type plants, which might play an important role of osmoregulation under stress conditions.

TL;DR: The activities of SOD, CAT, APX, POD and LOX, and MDA levels decreased during the rewatering period in both leaves and roots and these decrements were faster in plants rewatered in semi-shade conditions (SHP) than in plants under environmental light (NSHP).

TL;DR: GHS plants showed significantly higher activities of PRX enzyme in response to high temperature compared to those from the leaves of SHS plants, and plants exposed to GHS leaked less electrolytes from the Leaves compared with the plants exposedto SHS.

TL;DR: Both young and mature leaves exhibited a considerable increase in non-photochemical quenching (NPQ) and xanthophyll-mediated photoprotection capacity in response to drought stress, with a greater level of NPQ in mature leaves.

TL;DR: The results suggested that the Mn-SOD overexpressed in Arabidopsis played a pivotal role in preventing the over accumulation of ROS and protecting the cells against ROS caused by salt stress, as a result, enhanced salt-tolerance of the transgenic plants.

TL;DR: Salinity decreased seedling fresh weight and germination percentage, spinach being the exception, and the ratio (Spd + Spm)/Put increased with salinity in all studied species, which would infer increased tolerance to salinity.

TL;DR: Results suggest possible different behaviors of cultivars differing in salt tolerance with respect to germination, seedling vigor, plant growth, water content (WC) and Na + /K + contents.

TL;DR: The effects of nitrogen availability on growth and photosynthesis were followed in plants of sunflower grown in the greenhouse under natural photoperiod under two contrasting nitrogen supply, with nitrogen supplied as ammonium nitrate and vermiculite.

TL;DR: In this paper, population differences in dry matter accumulation and allocation, gas exchange, abscisic acid content and water use efficiency of Populus davidiana seedlings were measured after exposure to well-watered and progressive drought stress treatments.

TL;DR: Induction of oxidative stress in hydroponically raised maize plants subjected to the deficiency of N, P, K, Ca, Mg or S was investigated by studying the levels of lipid peroxidation, H 2O2, and some important enzymatic antioxidative responses.

TL;DR: Efficient use of P in the calcareous soil by line 181 is related to its large root system, greater ability to acidify the rhizosphere, and positive response of APase production and excretion to low P conditions.