Abiotic environmental conditions for germination and development of gametophytes of Cyathea phalerata Mart. (Cyatheaceae)

Marcon, Catiuscia; Silveira, Tatieli; Schmitt, Jairo Lizandro; Droste, Annette

doi:10.1590/0102-33062016abb0288

Cited by 12 publications

(10 citation statements)

References 38 publications

(47 reference statements)

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“…As shown in studies of bean (Thomson et al, 1993), corn (Blevins et al 1977), peach (Tagliavini et al, 1995), and natural temperate ecosystems (Van Miegroet and Cole, 1984) nitrogen fertilizers decrease soil pH. Acidic substrates (pH 4-5), in turn, have been shown to favor spore germination and the development of gametophytes in several tree fern species (Marcon et al, 2017, Medeiros et al, 2017, Rechenmacher et al 2010. It is possible then that soil acidification following the fertilization of pineapple fields in the Manu region allow tree ferns to recruit more competitively than pioneer arborescent angiosperms such as Cecropia and Jacaranda.…”

Section: Discussionmentioning

confidence: 96%

Tree ferns dominate secondary succession in abandoned pineapple plantations around Manu National Park, Peru

Schilling¹,

Gutierrez²

2018

abm

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Habitat management and restoration in buffer zones of national parks is critical for maintaining ecosystem services and biological connectivity in and around the parks’ core protected areas. Vegetation succession in abandoned plantations in buffer zones may take different paths that reach climax ecosystems in more or less time depending on the conditions of initial succession, thus enhancing or hindering biological connectivity and ecosystem services. This study documents the dominance of tree ferns in the initial stages of vegetation succession on abandoned pineapple plantations on the Andean foothills around Manu National Park, Peru, and discusses the role it may have on ecosystem restoration. Four years after abandonment, tree fern gametophytes grow under the shade of pineapple plants and melastomes. After 6-10 years of succession, the vegetation is dominated by a tree fern community composed of at least eight species, of which the most common are by far Cyathea delgadii and Cyathea microdonta. Cyathea microdonta functions as a short-lived pioneer, reaching its peak of live stem density in 6 to10 years and dying off in older plots. Cyathea delgadii, on the other hand, continues to grow and persists beyond 10 years of succession. Areas adjacent to abandoned pineapple fields have few tree ferns and higher tree species diversity, suggesting that pineapple agriculture and the resulting tree fern community may be a longer pathway to reach climax vegetation stages than other types of plantation.

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Section: Discussionmentioning

confidence: 96%

Tree ferns dominate secondary succession in abandoned pineapple plantations around Manu National Park, Peru

Schilling¹,

Gutierrez²

2018

abm

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“…Gametofit Cyathea phalerata berkembang lebih cepat pada media dengan pH asam, dan menghasilkan gametofit paling banyak pada fotoperiode 6 dan 18 jam (Marcon et al 2017). Perkecambahan spora dan perkembangan gametofit dari Asplenium nidus (Praptosuwiryo 2010), Cibotium barometz , dan Platycerum wandae (Praptosuwiryo 2017) terjadi dengan baik pada media campuran akar Cyathea contaminants arang sekam padi.…”

Section: Pendahuluanunclassified

MORFOLOGI SPORA DAN PERKEMBANGAN GAMETOFIT <em>Davallia denticulata</em> dan <em>Davallia trichomanoides</em>

Meliza

Chikmawati

Sulistijorini

2019

J Bioteknol Biosains Indones

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Davallia denticulata and D. trichomanoides are two attractive and decorative fern species for ornamental. Spore morphology has an important role in fern taxonomy, while media composition has important role in the growth and development of their gametophytes. Such information on the two fern species was lacking. Therefore, this study aimed to reveal the information of the spore morphology and gametophyte developmental stages of D. denticulata and D. trichomanoides on three different media. The spores were collected from Bogor, West Java. The spores were sown in three sterile media. Spore morphology and gametophyte development were observed under a stereoscopic microscope. Both gametophyte species reached their mature stage at 25 weeks after planting on the different media compositions. D. denticulata showed the best gametophyte development, and formed mature gametophytes on the media of vermiculite, sphagnum moss, and perlite, while D. trichomanoides grew best into maturity stage on the media containing vermiculite, and sphagnum moss. Thus, the presence of sphagnum moss in the media is an important material for the growth and development of Davallia gametophyte. ABSTRAKDavallia denticulata dan D. trichomanoides merupakan dua spesies tumbuhan paku yang menarik dan indah untuk tanaman hias. Morfologi spora memiliki arti penting dalam taksonomi tumbuhan paku, sedangkan komposisi media berperan penting untuk pertumbuhan dan perkembangan gametofitnya. Informasi seputar hal ini terkait dua spesies tumbuhan paku tersebut belumlah ada. Penelitian ini bertujuan untuk mengungkap informasi mengenai ciri morfologi spora dan tahapan perkembangan gametofit D. denticulata dan D. trichomanoides pada tiga komposisi media berbeda. Pengambilan spora dilakukan di Bogor, Jawa Barat. Spora ditumbuhkan pada tiga media steril. Morfologi spora dan perkembangan gametofit diamati menggunakan mikroskop stereo. Kedua spesies memiliki waktu perkembangan terbaik untuk mencapai tahap gametofit dewasa yaitu 25 minggu pada komposisi media yang berbeda. D. denticulata berkembang dengan baik, dan membentuk gametofit dewasa pada media vermiculite, lumut sphagnum, dan perlite. D. trichomanoides berkembang hingga tahap gametofit dewasa dengan baik pada media vermiculite, dan lumut sphagnum. Dengan demikian keberadaan lumut sphagnum pada media sangat penting untuk pertumbuhan dan perkembangan gametofit Davallia.

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“…The species is widely distributed in Brazil, occurring in all regions (Windisch and Santiago, 2015), and also in Bolivia (Lehnert, 2006). Information on C. phalerata is still limited and practically restricted to taxonomy (Fernandes 2003), pharmacology (Hort et al, 2008), and germination and gametophyte development (Marcon et al, 2017). Due to the drastic reduction of the Atlantic Forest (SOS Mata Atlântica, 2020), and having only been registered between latitudes 29°17' -31°00'S (Gonzatti et al, 2016), C. phalerata is considered Critically Endangered by the list of endangered species of flora of the state of Rio Grande do Sul (Rio Grande do Sul, 2014).…”

mentioning

confidence: 99%

Herbivory and leaf expansion of Cyathea phalerata Mart. (Cyatheaceae) in subtropical Atlantic Forest, southern Brazil

et al. 2023

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Herbivory is an interaction with great impact on plant communities since relationships between herbivores and plants are fundamental to the distribution and abundance of species over time and space. The aim of this study was to monitor the rate of leaf expansion in the tree fern Cyathea phalerata and evaluate the damage caused by herbivores to leaves of different ages and whether such damage is related to temperature and precipitation. The study was performed in a subtropical Atlantic Forest fragment located in the municipality of Caraá, in the northeast hillside of Rio Grande do Sul state, in southern Brazil. We monitored 24 mature individuals of C. phalerata with croziers in a population of approximately 50 plants. Leaf expansion rate, percentage of damaged leaves and leaf blade consumption rate by herbivory were calculated. Monthly means for temperature and accumulated rainfall were calculated from daily data. Croziers of C. phalerata were found to expand rapidly during the first and second months after emergence (3.98 cm day-1; 2.91 cm day-1, respectively). Damage caused by herbivory was observed in all of the monitored leaves, but none of the plants experienced complete defoliation. The highest percentage (57%) of damaged leaves was recorded at 60 days of monitoring, and also the highest monthly consumption rate of the blade (6.04%) occurred with young, newly-expanded leaves, while this rate remained between 1.50 and 2.21% for mature leaves. Rates of monthly leaf consumption and damaged leaves showed positive and strong relationship with each other and with temperature. The rapid leaf expansion observed for C. phalerata can be considered a phenological strategy to reduce damage to young leaves by shortening the developmental period and accelerating the increase of defenses in mature leaves.

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Abiotic environmental conditions for germination and development of gametophytes of Cyathea phalerata Mart. (Cyatheaceae)

Cited by 12 publications

References 38 publications

Tree ferns dominate secondary succession in abandoned pineapple plantations around Manu National Park, Peru

Tree ferns dominate secondary succession in abandoned pineapple plantations around Manu National Park, Peru

MORFOLOGI SPORA DAN PERKEMBANGAN GAMETOFIT <em>Davallia denticulata</em> dan <em>Davallia trichomanoides</em>

Herbivory and leaf expansion of Cyathea phalerata Mart. (Cyatheaceae) in subtropical Atlantic Forest, southern Brazil

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