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Distinct nuclear organization, DNA methylation pattern and cytokinin distribution mark juvenile, juvenile-like and adult vegetative apical meristems in peach (Prunus persica (L.) Batsch).
The extent to which the acquisition of a strongly zonated pattern of these parameters as markers of floral competence in adult SAMs is discussed, including nuclear DNA methylation and endogenous zeatin localization, is discussed.
Pollen-mediated transgene flow in lettuce (Lactuca sativa L.)
The pollen-mediated transgene flow among lettuce varieties in Italy was examined and the out-crossing rate (OCR) was calculated as the frequency of KNAT1:NPTII/− and δKNAT1-NPT II/− genotypes because KNAT2 impair (indicated with δ) was observed to vary from the 0.03% to 0.36%.
A Novel Lipoxygenase in Pea Roots. Its Function in Wounding and Biotic Stress
In situ hybridization revealed that LOXN2 message was widespread in the cortex and endodermis of healthy roots, but specifically localized at high level in the cells bordering the nematode-induced syncytia of infected roots, suggesting LOXn2 involvement in late mechanisms of host resistance.
The gene geranylgeranyl reductase of peach (Prunus persica [L.] Batsch) is regulated during leaf development and responds differentially to distinct stress factors.
- D. Giannino, E. Condello, D. Mariotti
- Environmental ScienceJournal of experimental botany
- 1 September 2004
Gene expression was monitored in leaves responding to natural dark, cold, wounding, stress by imposed darkening, and during the curl disease, suggesting that PpCHL P expression was regulated by photosynthetic activity and was possibly involved in the defence response.
The overexpression of asparagine synthetase A from E. coli affects the nitrogen status in leaves of lettuce (Lactuca sativa L.) and enhances vegetative growth
In pMAC:asnA genotypes, the altered content of nitrogen transport amino acids, the tolerance to increasing doses of ammonium and phosphinothricin indirectly proved the AS-A enzymatic activity in lettuce.
Quality evaluation of cook-chilled chicory stems (Cichorium intybus L., Catalogna group) by conventional and sous vide cooking methods.
- M. Renna, M. Gonnella, D. Giannino, P. Santamaria
- Chemistry, MedicineJournal of the science of food and agriculture
- 15 March 2014
The results indicate the sous vide technique as optimal to preserve several traits, including organoleptic ones, for the quality of cook-chilled chicory stems.
Role of geranylgeranyl reductase gene in organ development and stress response in olive (Olea europaea) plants.
Levels of tocopherols and OeCHLP transcripts locally increased in specific cell domains of fruits severely damaged by the pathogen Bactrocera olea suggest that gene activity under stress condition could be related to tocop herol action.
Peach [Prunus persica (L.) Batsch] KNOPE1, a class 1 KNOX orthologue to Arabidopsis BREVIPEDICELLUS/KNAT1, is misexpressed during hyperplasia of leaf curl disease.
Results strongly suggest that KNOPE1 must be down-regulated for leaf initiation and that it can control cell meristem identity equally as well as all class 1 KNOX genes.
Overexpression of KNAT 1 in Lettuce Shifts Leaf Determinate Growth to a Shoot-Like Indeterminate Growth Associated with an Accumulation of Isopentenyl-Type Cytokinins 1
Istituto di Biochimica ed Ecofisiologia Vegetali del Consiglio Nazionale delle Richerche, via Salaria km 29,300–00016 Monterotondo Scalo, Rome, Italy (G.F., D.G., G.M., C.N., D.M.); Universita’ degli…
Overexpression of KNAT1 in lettuce shifts leaf determinate growth to a shoot-like indeterminate growth associated with an accumulation of isopentenyl-type cytokinins.
It is shown that lettuce (Lactuca sativa) leaves that overexpress KNAT1, an Arabidopsis kn1-like gene, acquire characteristics of indeterminate growth typical of the shoot and that this cell fate change is associated with the accumulation of specific types of cytokinins.