Showing papers in "Journal of Plant Physiology in 1995"

TL;DR: A plant-microbe interaction that prevents physiological malformations asociated with vitrification is reported that offers excellent potential to prevent vitrification and improve the efficiency of in vitro plant tisue propagation.

TL;DR: Preliminary studies suggest that there are changes caused by Cd 2+ in the fatty acid composition of the phospholipid fraction in PM, which were different in the case of wheat and sunflower.

TL;DR: In this article, a triazole plant growth regulator, paclobutrazol, was used to reduce photoinhibition and loss of fresh mass, protein, and membrane integrity in the leaves.

TL;DR: It is suggested that carotenoids, serving as effective light traps, are able to provide protection against harmful effects of blue-light irradiation and can explain the physiological significance of their retention in leaves up to terminal stages of the senescence process.

TL;DR: In this article, changes in the concentrations of organic and inorganic solutes in leaves of durum wheat (Triticum durum) under water stress have been quantified and compared in growing and expanded leaves.

TL;DR: The «IAA destruction» seems to be a potent mechanism for the growth inhibition of UV-B irradiated sunflower seedlings grown at low white light irradiances.

TL;DR: The perennial plant Armeria maritima ssp.

TL;DR: A vacuolar processing enzyme responsible for maturation of seed proteins was isolated from the castor bean and soybean with a novel cysteine proteinase with a molecular mass of 37 kDa and several cDNA homologues of the enzyme were isolated from different plants.

TL;DR: The results suggested that the lipid layer functions as a light filter to reduce irradiation of the cell components, to prevent photooxidative damage and to reduce water losses.

TL;DR: A drought tolerant variety can adapt to drought stress by diverse manipulations in the antioxidant system, manifested by increases in the levels of superoxide dismutase in the drought tolerant varieties.

TL;DR: An ability of Zn-efficient wheat genotypes to maintain greater CA activity under Zn deficiency may be beneficial in maintaining the photosynthetic rate and dry matter production at a higher level, a characteristic that may be especially important for wheat as a species with inherently lower CA activity compared to other species.

TL;DR: It is demonstrated that when red light is used to induce the fluorescence kinetics the variation of F685/F730 is not due to a change in the leaf absorption, as proved by the simultaneous measurement of leaf transmittance.

TL;DR: In this article, a method for collection of apoplasmic fluid from isolated sunflower leaves has been developed, which can be used to study the influence of ammonium or nitrate supply to roots on the apeplasmic pH in Sunflower leaves.

TL;DR: The distribution of mitotic activity followed by cell elongation and endopolyploidisation during seed development suggests a developmental gradient expressed in a specific spatial and temporal pattern at two levels between individual seed organs and within single organs.

TL;DR: The daily variations of inorganic and organic solutes with salinity were determined in seedlings of cultivated tomato and its wild salt tolerant relative L. pennellii for 8 days, with the objective to identify physiological traits in either leaves or roots contributing to the salt tolerance.

TL;DR: Seeds of red varieties of cabbage, cauliflower, kohl rabi, radish, and canola were grown hydroponically with complete nutrient, or with nutrient lacking nitrogen, phosphorus, or potassium, and anthocyanin content was increased and growth was reduced on -N and -P nutrients as compared to plants on complete or -K nutrients.

TL;DR: Transgenic forage- and turf-type tall and red fescue plants have been obtained by microprojectile bombardment of embryogenic suspension cells using chimeric hygromycin phosphotransferase gene constructs driven by CaMV 35S promoter or rice actin 1 5' regulatory sequences.

TL;DR: In this experiment the fluctuations of total chlorophyll, hydrocyanic acid, and epicuticular wax in the leaves, and proline content from the root, were determined and there was a marked relation between concentrations of these compounds and the salinity levels used.

TL;DR: In this article, intact leaves of Vicia faba were vacuum infiltrated with solutions differing in cation exchange strength (water and 50 mol · m -3 BaCl 2 ). Apoplastic washing fluids were subsequently obtained by careful centrifugation.

TL;DR: The changes in bound putrescine and spermidine, and in spermine (all forms) could not be correlated with somatic embryogenesis.

TL;DR: Transformed cultures of Artemisia annua L. annua and Agrobacterium rhizogenes NCIB 8196 or MAFF 03-01724 were established by the co-culture method, showing the typical transformed morphology and the existence of compound(s) structurally related to artemisinin.

TL;DR: Differences between the results obtained with oxygen and fluorescence measurements were re-investigated under controlled laboratory conditions and showed differences between the action spectra of photoinhibition measured by means of fluorescence and oxygen evolution.

TL;DR: It is concluded that the generally observed inhibition of nitrogenase activity during drought stress can be best explained in terms of product inhibition of the enzyme as an efficient feedback regulation mechanism triggered by reduced nitrogen demand of the host plant.

TL;DR: The data suggest that sucrose synthase is important both for sink metabolism and the source sink transition, and both the enzyme activity and the mRNA level showed a sink tissue specific distribution in plants.

TL;DR: In this article, two bread-wheat (Triticum aestivum L.) varieties (Kobomugi:drought tolerant, Regina: drought and salt sensitive) were evaluated for drought (PEG 4000) and salt tolerance under controlled environmental conditions.

TL;DR: Comparisons of homozygous and heterozygous progeny in these strains revealed that a doubling of the number of genes resulted in an approximate doubling in the amount of gene product, and Amino acid analysis revealed an approximate 3 fold increase in the methionine content of seed protein in one R 0 line.

TL;DR: It was discovered, that mean shoot yield and essential oil accumulation over the growing period were fairly associated with Pn, and there were significantly positive correlations between Pn and essentialOil accumulation, shoot yield, and essential Oil content.

TL;DR: The role played by phytochrome B in seed germination responses to light pulses was investigated by comparing wild-type (WT) and phyB-1 -mutant seeds of Arabidopsis thaliana (L.) Heynh and it is proposed to make a higher contribution to low-fluence than very-low- fluence germination responded to light pulse pulses.

TL;DR: No adaptation of the cells to the conditions of weightlessness could be observed over the duration of the space mission (12 days), and after landing, the cells showed a normal gravitactic behavior at 1 x g.

TL;DR: The effect of suppression of UDP-glucose pyrophosphorylase (UGPase) on carbohydrate metabolism in potato tubers was investigated and no transgenic plants, carrying either construct, expressed an enzyme activity lower than 50-60 % of the control.