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During the past few years, an increasing awareness concerning the emission of an unexpected high number of bacterial volatiles has been registered. Humans sense, intensively and continuously, microbial volatiles that are released during food transformation and fermentation, e.g., the aroma of wine and cheese. Recent investigations have clearly demonstrated(More)
Volatiles of Stenotrophomonas, Serratia, and Bacillus species inhibited mycelial growth of many fungi and Arabidopsis thaliana (40 to 98%), and volatiles of Pseudomonas species and Burkholderia cepacia retarded the growth to lesser extents. Aspergillus niger and Fusarium species were resistant, and B. cepacia and Staphylococcus epidermidis promoted the(More)
Soil is one of the major habitats of bacteria and fungi. In this arena their interactions are part of a communication network that keeps microhabitats in balance. Prominent mediator molecules of these inter- and intraorganismic relationships are inorganic and organic microbial volatile compounds (mVOCs). In this review the state of the art regarding the(More)
The expression of plastid and nuclear genes coding for photosynthesis-specific proteins has been studied during tomato fruit formation. The steady-state transcript levels for the large (rbcL) and small (rbcS) subunit of RuBPC/Oase, as well as the thylakoid membrane proteins, the 32 kD QB-binding protein of PS II (psbA), the P700 reaction center protein of(More)
Bacterial antagonists are bacteria that negatively affect the growth of other organisms. Many antagonists inhibit the growth of fungi by various mechanisms, e.g., secretion of lytic enzymes, siderophores and antibiotics. Such inhibition of fungal growth may indirectly support plant growth. Here, we demonstrate that small organic volatile compounds (VOCs)(More)
Serratia odorifera, an antagonistic rhizobacterium, emits a diverse and complex bouquet of volatiles. Three different in vitro experimental culture systems indicated that these volatiles promote the growth of Arabidopsis thaliana. CO(2) trapping and significant rise of CO(2) levels (390-3000 ppm CO(2) within 24 h) due to bacterial growth in sealed Petri(More)
Steady-state transcript levels of nuclear (rbcS, cab) and plastid (rbcL, psbA) encoded photosynthesis-specific genes were determined at noon and 05.00 h in different developmental stages of tomato fruits (7-35 days after anthesis). Small alterations are observed in mRNA levels for the small subunit (ssu) and large subunit (lsu) of RuBPC/Oase and the(More)
Expression of the light-harvesting complex protein genes (Lhc) is under the control of a circadian clock. To dissect the molecular regulatory components of the circadian clock a promoter deletion analysis of four tomato Lhc genes was performed in transgenic tobacco plants. The important 5′-upstream promoter regions are present at different positions(More)
The white flowers of N. suaveolens emit a complex bouquet of fragrance volatiles. The dominant compounds are benzenoids (e.g. methyl benzoate, methyl salicylate, benzyl benzoate and benzyl salicylate), monoterpenes (1,8-cineole, limonene, sabinene, E-β-ocimene, β-β-myrcene, α- and β-pinene and α-terpineole) and sesquiterpenes (e.g. caryophyllene), which are(More)
BACKGROUND Phytoestrogens are a diverse group of nonsteroidal plant compounds which have similar effects to endogenous estrogens in humans and have been ascribed potential anticarcinogenic activities. We tested the effects of phytoestrogen extracts from different plant organs of flax, Linum usitatissimum, on cell proliferation in trophoblast tumour cells of(More)