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1.
Plant Biol (Stuttg) ; 20(6): 1059-1067, 2018 Nov.
Article in English | MEDLINE | ID: mdl-29931758

ABSTRACT

Invasions by alien Carpobrotus spp. have been recognised as one of the most severe threats to Mediterranean climate coastal ecosystems, and Carpobrotus is considered one of the most widespread invasive alien genera in the Mediterranean Basin. The aims of this study were to characterise seed germination of both C. edulis and its hybrid C. aff. acinaciformis, in terms of photoperiod, temperature and salinity. Inter- and intra-specific variability in the responses to photoperiod (12/12 h light and total darkness), constant temperatures (5, 10, 15, 20, 25 °C) and an alternating temperature regime (25/10 °C), salt stress (0, 125, 250, 500 mm NaCl) and the recovery of seed germination were evaluated for two seed lots of C. edulis and two of its hybrid C. aff. acinaciformis. All the tested seed lots achieved higher germination percentages in the light, with respect to total darkness. In relation to temperature, the two C. edulis seed lots did not show a preference, while the two C. aff. acinaciformis seed lots differed in their germination response, one germinating more at the lowest temperatures (5 and 10 °C) and one at the highest (20 and 25 °C). For all seed lots, highest germination occurred without NaCl (0 mm) and germination decreased with increasing salinity. Different germination requirements in a saline substrate were not detected for C. edulis, while they were observed for C. aff. acinaciformis. Marked differences were detected in recovery responses between the two taxa. C. edulis has the ability to germinate over a wide time window throughout the year. This study identified significant differences in seed production, seed mass, germination requirements (temperature) and salinity tolerance for both C. edulis and C. aff. acinaciformis. Our results indicate the extreme versatility of the hybrid forms to germinate in a wide range of natural conditions and habitats.


Subject(s)
Caryophyllales/physiology , Germination/physiology , Seeds/physiology , Introduced Species , Phenotype , Photoperiod , Salt Tolerance , Temperature
3.
Eur J Dermatol ; 15(4): 271-3, 2005.
Article in English | MEDLINE | ID: mdl-16048757

ABSTRACT

The real risk of lymphoproliferative disease in psoriatic patients has not yet been defined. Two explanations can be given for the occurrence of these malignancies: the broad immune activation typical of psoriasis and the administration of an immuno-suppressive treatment. A few studies describing the development of non Hodgkin lymphomas in psoriatic patients undergoing cyclosporine A have been published, but data about the occurrence of chronic lymphoproliferative disorders have never been reported. Here we describe the occurrence of hairy cell leukemia and Waldenstrom macroglobulinemia in two psoriatic patients treated with cyclosporine A. It remains unclear in our cases of chronic lymphoproliferative disease, as well as in the reported cases of psoriatic patients who develop lymphomas, whether psoriasis or the immunosuppressive treatment could play a role, although it is not possible to exclude a synergism between these factors.


Subject(s)
Cyclosporine/therapeutic use , Immunosuppressive Agents/therapeutic use , Leukemia, Hairy Cell/diagnosis , Psoriasis/drug therapy , Waldenstrom Macroglobulinemia/diagnosis , Adult , Cyclosporine/administration & dosage , Cyclosporine/adverse effects , Diagnosis, Differential , Drug Administration Schedule , Female , Humans , Immunosuppressive Agents/administration & dosage , Immunosuppressive Agents/adverse effects , Leukemia, Hairy Cell/complications , Psoriasis/complications , Waldenstrom Macroglobulinemia/complications
4.
Ann Hematol ; 69(4): 195-8, 1994 Oct.
Article in English | MEDLINE | ID: mdl-7948306

ABSTRACT

We report a retrospective study about the incidence of second neoplasms (SN) in patients affected by chronic lymphocytic leukemia (CLL) admitted to Padua Hospital between 1989 and 1991, comparing data with those of a similar population. We examined the records of 212 patients, finding in 19 of them 22 second neoplasms; the most common kind was lung cancer. There was an increased incidence of SN, without statistic significance if compared with all sites of cancers in the general population, especially during the first 2 years from the diagnosis of CLL. In accordance with the majority of authors, there is an unknown connection between the two diseases, but certainly independent of chemotherapy with alkylating agents.


Subject(s)
Leukemia, Lymphocytic, Chronic, B-Cell/epidemiology , Lung Neoplasms/epidemiology , Neoplasms, Second Primary/epidemiology , Adult , Aged , Aged, 80 and over , Female , Humans , Incidence , Italy/epidemiology , Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis , Lung Neoplasms/diagnosis , Male , Middle Aged , Neoplasms, Second Primary/diagnosis , Retrospective Studies
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