@article{DuMaYanez‐Serranoetal.2021,
  author    = {Du, Baoguo and Ma, Yuhua and Y{\´a}{\~n}ez-Serrano, Ana Maria and Arab, Leila and Fasbender, Lukas and Alfarraj, Saleh and Albasher, Gadah and Hedrich, Rainer and White, Philip J. and Werner, Christiane and Rennenberg, Heinz},
  title     = {Physiological responses of date palm (Phoenix dactylifera) seedlings to seawater and flooding},
  series = {New Phytologist},
  volume    = {229},
  journal   = {New Phytologist},
  number    = {6},
  doi       = {10.1111/nph.17123},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228226},
  pages     = {3318 -- 3329},
  year      = {2021},
  abstract  = {In their natural environment along coast lines, date palms are exposed to seawater inundation and, hence, combined stress by salinity and flooding. To elucidate the consequences of this combined stress on foliar gas exchange and metabolite abundances in leaves and roots, date palm seedlings were exposed to flooding with seawater and its major constituents under controlled conditions. Seawater flooding significantly reduced CO\(_{2}\) assimilation, transpiration and stomatal conductance, but did not affect isoprene emission. A similar effect was observed upon NaCl exposure. By contrast, flooding with distilled water or MgSO\(_{4}\) did not affect CO\(_{2}\)/H\(_{2}\)O gas exchange or stomatal conductance significantly, indicating that neither flooding itself, nor seawater sulfate, contributed greatly to stomatal closure. Seawater exposure increased Na and Cl contents in leaves and roots, but did not affect sulfate contents significantly. Metabolite analyses revealed reduced abundances of foliar compatible solutes, such as sugars and sugar alcohols, whereas nitrogen compounds accumulated in roots. Reduced transpiration upon seawater exposure may contribute to controlling the movement of toxic ions to leaves and, therefore, can be seen as a mechanism to cope with salinity. The present results indicate that date palm seedlings are tolerant towards seawater exposure to some extent, and highly tolerant to flooding.},
  language  = {en}
}
@article{GhirardoNosenkoKreuzwieseretal.2021,
  author    = {Ghirardo, Andrea and Nosenko, Tetyana and Kreuzwieser, J{\"u}rgen and Winkler, J. Barbro and Kruse, J{\"o}rg and Albert, Andreas and Merl-Pham, Juliane and Lux, Thomas and Ache, Peter and Zimmer, Ina and Alfarraj, Saleh and Mayer, Klaus F. X. and Hedrich, Rainer and Rennenberg, Heinz and Schnitzler, J{\"o}rg-Peter},
  title     = {Protein expression plasticity contributes to heat and drought tolerance of date palm},
  series = {Oecologia},
  volume    = {197},
  journal   = {Oecologia},
  number    = {4},
  issn      = {0029-8549},
  doi       = {10.1007/s00442-021-04907-w},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-308075},
  pages     = {903-919},
  year      = {2021},
  abstract  = {Climate change is increasing the frequency and intensity of warming and drought periods around the globe, currently representing a threat to many plant species. Understanding the resistance and resilience of plants to climate change is, therefore, urgently needed. As date palm (Phoenix dactylifera) evolved adaptation mechanisms to a xeric environment and can tolerate large diurnal and seasonal temperature fluctuations, we studied the protein expression changes in leaves, volatile organic compound emissions, and photosynthesis in response to variable growth temperatures and soil water deprivation. Plants were grown under controlled environmental conditions of simulated Saudi Arabian summer and winter climates challenged with drought stress. We show that date palm is able to counteract the harsh conditions of the Arabian Peninsula by adjusting the abundances of proteins related to the photosynthetic machinery, abiotic stress and secondary metabolism. Under summer climate and water deprivation, these adjustments included efficient protein expression response mediated by heat shock proteins and the antioxidant system to counteract reactive oxygen species formation. Proteins related to secondary metabolism were downregulated, except for the P. dactylifera isoprene synthase (PdIspS), which was strongly upregulated in response to summer climate and drought. This study reports, for the first time, the identification and functional characterization of the gene encoding for PdIspS, allowing future analysis of isoprene functions in date palm under extreme environments. Overall, the current study shows that reprogramming of the leaf protein profiles confers the date palm heat- and drought tolerance. We conclude that the protein plasticity of date palm is an important mechanism of molecular adaptation to environmental fluctuations.},
  language  = {en}
}
@article{KreuzwieserScheererKruseetal.2014,
  author    = {Kreuzwieser, J{\"u}rgen and Scheerer, Ursel and Kruse, J{\"o}rg and Burzlaff, Tim and Honsel, Anne and Alfarraj, Saleh and Georgiev, Palmen and Schnitzler, J{\"o}rg-Peter and Ghirardo, Andrea and Kreuzer, Ines and Hedrich, Rainer and Rennenberg, Heinz},
  title     = {The Venus flytrap attracts insects by the release of volatile organic compounds},
  series = {Journal of Experimental Botany},
  volume    = {65},
  journal   = {Journal of Experimental Botany},
  number    = {2},
  doi       = {10.1093/jxb/ert455},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-121161},
  pages     = {755-66},
  year      = {2014},
  abstract  = {Does Dionaea muscipula, the Venus flytrap, use a particular mechanism to attract animal prey? This question was raised by Charles Darwin 140 years ago, but it remains unanswered. This study tested the hypothesis that Dionaea releases volatile organic compounds (VOCs) to allure prey insects. For this purpose, olfactory choice bioassays were performed to elucidate if Dionaea attracts Drosophila melanogaster. The VOCs emitted by the plant were further analysed by GC-MS and proton transfer reaction-mass spectrometry (PTR-MS). The bioassays documented that Drosophila was strongly attracted by the carnivorous plant. Over 60 VOCs, including terpenes, benzenoids, and aliphatics, were emitted by Dionaea, predominantly in the light. This work further tested whether attraction of animal prey is affected by the nutritional status of the plant. For this purpose, Dionaea plants were fed with insect biomass to improve plant N status. However, although such feeding altered the VOC emission pattern by reducing terpene release, the attraction of Drosophila was not affected. From these results it is concluded that Dionaea attracts insects on the basis of food smell mimicry because the scent released has strong similarity to the bouquet of fruits and plant flowers. Such a volatile blend is emitted to attract insects searching for food to visit the deadly capture organ of the Venus flytrap.},
  language  = {en}
}