Germination and Morphology of Spores of Trichipteris corcovadensis

Abstract

Published data show that spores of the majority knowledge temperatures, f ] ?nsibiJis (Miller of ferns, with the exception of the germination of spores of Cyathea delgadii (Marcondes-Ferreira & Felippe, 1984). In this paper a study was made of germination of Trichipteris corcovadensis (Raddi) Copel. This species is a tree fern that occurs in the Serra do Mar area of Southern Brazil (Tryon, 1970), at elevations from 250 to 2100 meters (Barrington, 1978). A study of the spore morphology of several specimens was also carried out. Spore morphology of the species has been studied previously as Trichopteris corcovadensis (Kremp & Kawasaki, 1969; Erdtman & Sorsa, 1971). Materials and Methods Material ofTrichipteris corcovadensis was collected in the Reserva Biologica do Parque Estadual das Fontes do Ipiranga, Sao Paulo, Brazil, and identified by Dr. Paulo Windish (UNESP, Sao Jose do Rio Preto). Spores were collected from design March of different years. These ]f D (1982); and E (1982). The spores were stored in closed bottles in the dark at 4°C. Some material from specimen B was also stored at 25°G. Spores from the were out with all five specimens Germination. using 25 ml of Mohr ion, as modihed by Dyer (1979), in an Erlenmeyer flask. The flasks medium were autoclaved at 120°C for 20 minutes, and nystatin (50 units-mi-1 ) was patula. For each treatment, three three microscope slides were prepared from through a microscope. Gernn rhizoid The experiments were carried out in growth cabinets (Forma

Substructural components in the sporoderm of the Family Cyatheaceae

“…The morphology of spores has been studied in many palynological works (Harris 1955;Nayar & Devi 1966;Erdtman & Sorsa 1971;Gastony 1974;Murillo & Bless 1974;Barth 1975;Gastony & Tryon 1976;Liew & Wang 1976;Gastony 1979;Esteves & Felippe 1985;Braggins & Large 1990;Simabukuro et al 1998;Lorscheitter et al 1999) and systematic (Holttum & Sen 1961;Gastony 1973;Tryon 1976;Barrington 1978;Tryon & Tryon 1982;Conant 1983;Lellinger 1987;Conant et al 1996;Korall et al 2007;Moran et al 2008).…”

Spore morphology and ultrastructure ofCyathea(Cyatheaceae, Pteridophyta) species from southern South America

“…Several authors have described the spores of Cyathea (under different circumscriptions) as trilete with a smooth, verrucate or perforated exospore and a pilose perispore (Harris, 1955;Holttum & Sen, 1961;Erdtman & Sorsa, 1971;Murillo & Bless, 1974;Barth, 1975;Gastony & Tryon, 1976;Tryon, 1976;Barrington, 1978;Tryon & Tryon, 1982;Esteves & Felippe, 1985;Lellinger, 1987;Simabukuro et al, 1998). Recently, Moran et al (2008) transferred Polypodium myriotrichum to Cyathea myriotricha and described its spores as verrucose, covered with rodlets.…”

Estudios morfológicos y ultraestructurales en esporas de Cyatheaceae del Cono Sur

“…Los autores propusieron una clave para diferenciar las especies presentes en Formosa (Taiwán) en base a la ornamentación de las esporas. Tryon (1976) Esteves & Felippe (1985) realizaron ensayos de germinación y describieron las esporas de Cyathea corcovadensis (bajo Trichipteris). Los autores observaron dos formas extremas de esporas: unas con lados rectos y otras con lados cóncavos, existiendo especimenes con estadíos intermedios.…”

“…Los primeros y más minuciosos datan de principios y mediados del siglo pasado, pudiendose citar la descripción de los protalos de Cyatheaceae realizada por Stokey (1930) En distintas especies presentes en el área se realizaron estudios completos de germinación de esporas bajo distintas condiciones. Entre estos se pueden citar experimentos en C. corcovadensis (Esteves & Felippe, 1985) y C. delgadii (Marcondes-Ferreira & Felippe, 1984;Randi & Felippe, 1988;Simambuko et al, 1998). Otros autores (Conant, 1990;Huang et al 2000;Hoshizaki & Yansura, 2005) también han trabajado en germinación de esporas, aunque con especies de otras áreas.…”