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Titolo:
INFLUENCE OF TEMPERATURE AND PHOTOPERIOD ON THE RE-ATTACHMENT PROCESSOF GELIDIUM-SESQUIPEDALE (CLEM) BORN-ET-THUR (GELIDIALES, RHODOPHYTA)
Autore:
SALINAS JM; VALDES L;
Indirizzi:
INST ESPANOL OCEANOG,POB 240 SANTANDER SPAIN INST ESPANOL OCEANOG,POB 240 SANTANDER SPAIN
Titolo Testata:
Journal of applied phycology
fascicolo: 3, volume: 5, anno: 1993,
pagine: 317 - 326
SICI:
0921-8971(1993)5:3<317:IOTAPO>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
CULTURE;
Keywords:
CULTIVATION; LIGHT INTENSITY; GELIDIUM-SESQUIPEDALE; RHIZOIDAL CLUSTER; SPRAY SYSTEM; TEMPERATURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
J.M. Salinas e L. Valdes, "INFLUENCE OF TEMPERATURE AND PHOTOPERIOD ON THE RE-ATTACHMENT PROCESSOF GELIDIUM-SESQUIPEDALE (CLEM) BORN-ET-THUR (GELIDIALES, RHODOPHYTA)", Journal of applied phycology, 5(3), 1993, pp. 317-326

Abstract

Thalli of the economically important rhodophyte Gelidium sesquipedalewere cultured for 8 weeks under laboratory conditions, and the influence of temperature and photoperiod on the re-attachment process were studied. Four different temperatures (16,18,20,22-degrees-C) and four different photoperiods (6:18, 12:12, 14:10, 16:8) were used and the results obtained in the thalli responses such as apical growth (measured as elongation of principal apex), rhizoidal cluster production and number of necrotic patches were tested. During the re-attachment process,the best results were obtained at temperatures of 16-18-degrees-C, when rhizoidal cluster production was high and necrotic patch development was low (18-degrees-C) or absent (16-degrees-C). Temperatures of 20 and 22-degrees-C favoured high rhizoidal cluster production, but also a high production of necrotic patches that finally led to death. The results suggest that long-day photoperiods (14:10, 16:8) produce a higher number of rhizoidal cluster bands than short-day photoperiods (6:18) at the same temperature.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 07:24:25