IN THIS ISSUE
Registration is now open for the 26th SPPS Congress in August
Have your say at the SPPS General Assembly
Presenting the speakers at Plant Biology Scandinavia 2015: Magic and beauty
And the SPPS award goes to...
Education corner: New and extensively revised edition of well-known plant biology textbook
Rewilding: Precision breeding faces uphill battle
Scandinavian research institute:
Department of Ecology, Environment and Plant Sciences at Stockholm University, Sweden
BROWSE ISSUES

NEWS FROM
PHYSIOLOGIA PLANTARUM
Published monthly on behalf of SPPS by Wiley-Blackwell.
Freezing oranges turn up the heat
Oranges enjoy a warm sub-tropical climate, and temperatures below 2°C for at least 4 hours can cause severe damage from dehydration due to deterioration of the membrane structure. Most previous studies on the cold response of citrus fruits have addressed post-harvest storage, but now Florencio Podestá and co-workers from Universidad Nacional de Rosario and Estación Experimental Agropecuaria Concordia (INTA) in Argentina have made proteomic and metabolomic profiling in planta of Valencia oranges after natural frost exposure. Using two-dimensional differential gel electrophoresis and gas as well as liquid chromatography-mass spectrometry they analyzed differential expression of proteins and production of metabolites in exposed and non-exposed fruits. Cold-induction of three glycolytic enzymes and an increase in volatile fermentation products suggest that the fruits counter cold stress by generating more energy. Regulatory functions, metabolism of carbohydrates and iron as well as oxidative damage were also affected as seen by altered levels of proteins and compounds being involved. The authors suggest that the secondary metabolite isosinensetin might be used for early diagnosis of freezing damage since frost rendered this compound undetectable.
Read full article here: Perotti et al (March 2015) Physiologia Plantarum 153: 337

NEWS IN BRIEF
FROM OTHER JOURNALS
Hungry birds serve plants too good
Source: Traveset et al (10 March 2015) Nature Communications 6: 6376
Biofuel waste combat plant pathogens
Source: Piotrowski et al (9 March 2015) PNAS doi:10.1073/pnas.1410400112

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Design and technical solution © 2004 Palmgren kommunikation. SPPS Newsletter is edited by Gorm Palmgren.
All articles - unless otherwise stated - are written by Gorm Palmgren.