Teofilo Vamerali
Associate professor in Crop Science and Crop Physiology at the University of Padova (Italy), one of the oldest universities in the world.
1995. PhD in "Environmental agronomy"
1991. Master degree on Agricultural Science.
Research topics:
- quality of cereals in a context of sustainable agriculture (aiding bacteria and VAM; use of phytohormones);
- soybean isoflavones;
- phytoremediation of metal pollutes soils;
- plant roots (methods, root architecture and physiology);
- new frontiers in the use of biochar as agricultural amendment;
- crops and abiotic stresses: drought, N and P lack, flooding;
- biostimulants and fungicides.
1995. PhD in "Environmental agronomy"
1991. Master degree on Agricultural Science.
Research topics:
- quality of cereals in a context of sustainable agriculture (aiding bacteria and VAM; use of phytohormones);
- soybean isoflavones;
- phytoremediation of metal pollutes soils;
- plant roots (methods, root architecture and physiology);
- new frontiers in the use of biochar as agricultural amendment;
- crops and abiotic stresses: drought, N and P lack, flooding;
- biostimulants and fungicides.
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Papers by Teofilo Vamerali
yield losses in many crops. Maize is highly sensitive to the excess of water, and
against the background of climate change there is an urgent need for deeper
insights into the mechanisms of crop adaptation to waterlogging. In the present study,
changes in maize morphology at the 4–5 leaf stage and the expression of three
candidate genes for flooding tolerance in plants subjected to six continuous days of
waterlogging were recorded in 19 commercial hybrids and in the inbred line B73, with
the aim of investigating the current variability in cultivated hybrids and identifying useful
morphological and molecular markers for screening tolerant genotypes. Here it was
demonstrated that root parameters (length, area, biomass) were more impaired by
waterlogging than shoot parameters (shoot height and biomass). Culm height generally
increased in stressed plants (by up to C24% vs. controls), while shoot biomass was
significantly reduced in only two hybrids. Root biomass was reduced in all the hybrids, by
an average of 30%, and significantly in 7 hybrids, while root length and area were even
more severely reduced, by 30–55% vs. controls, depending on the hybrid. The earlier
appearance of aerial roots seemed to be associated with greater root injuries. In leaves,
the transcript of the PFP enzyme (phosphofructokinase), which is involved in glycolytic
reactions, was markedly up-regulated (up to double the values) in half the waterlogged
hybrids, but down-regulated in the others. The transcript of CYP81D8 (ROS-related
proteins) in waterlogged plants exhibited relevant increases or strong decreases in level,
depending on the hybrid. The transcript of the AOX1A gene, coding for a mitochondrial
respiratory electron transport chain-related protein, was markedly down-regulated in all
the treated hybrids. Expression analysis of these genes under extreme waterlogging only
partially correlate with the shoot and root growth impairments observed, and AOX1A
seems to be the most informative of them.
yield losses in many crops. Maize is highly sensitive to the excess of water, and
against the background of climate change there is an urgent need for deeper
insights into the mechanisms of crop adaptation to waterlogging. In the present study,
changes in maize morphology at the 4–5 leaf stage and the expression of three
candidate genes for flooding tolerance in plants subjected to six continuous days of
waterlogging were recorded in 19 commercial hybrids and in the inbred line B73, with
the aim of investigating the current variability in cultivated hybrids and identifying useful
morphological and molecular markers for screening tolerant genotypes. Here it was
demonstrated that root parameters (length, area, biomass) were more impaired by
waterlogging than shoot parameters (shoot height and biomass). Culm height generally
increased in stressed plants (by up to C24% vs. controls), while shoot biomass was
significantly reduced in only two hybrids. Root biomass was reduced in all the hybrids, by
an average of 30%, and significantly in 7 hybrids, while root length and area were even
more severely reduced, by 30–55% vs. controls, depending on the hybrid. The earlier
appearance of aerial roots seemed to be associated with greater root injuries. In leaves,
the transcript of the PFP enzyme (phosphofructokinase), which is involved in glycolytic
reactions, was markedly up-regulated (up to double the values) in half the waterlogged
hybrids, but down-regulated in the others. The transcript of CYP81D8 (ROS-related
proteins) in waterlogged plants exhibited relevant increases or strong decreases in level,
depending on the hybrid. The transcript of the AOX1A gene, coding for a mitochondrial
respiratory electron transport chain-related protein, was markedly down-regulated in all
the treated hybrids. Expression analysis of these genes under extreme waterlogging only
partially correlate with the shoot and root growth impairments observed, and AOX1A
seems to be the most informative of them.