Low Trunk Epiphytic Fern Gametophyte and Sporophyte Occurrence Is Influenced by Moss Height and Density in a Costa Rican Lowland Tropical Rainforest

2021 ◽  
Author(s):  
Aidan D. Harrington ◽  
Jacob L. Watts
Keyword(s):  
Tropical Rainforest ◽  
Costa Rican ◽  
Fern Gametophyte ◽  
Epiphytic Fern

scholarly journals Transcriptomic Evidence of Adaptive Evolution of the Epiphytic Fern Asplenium nidus

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Jiao Zhang ◽  
Li Liu ◽  
Jiang-Ping Shu ◽  
Dong-Mei Jin ◽  
Hui Shen ◽  
...  
Keyword(s):  
Root Development ◽  
Stress Responses ◽  
Tropical Rainforest ◽  
Extreme Environments ◽  
Mads Box ◽  
Rna Seq ◽  
Lateral Root Development ◽  
Underlying Basis ◽  
Asplenium Nidus ◽  
Epiphytic Fern

Epiphytic ferns have been found to flourish after angiosperms dominated forest communities, and they play important roles in rainforest canopies. How do epiphytic ferns adapt to tropical rainforest canopy habitats? At present, we know little about the molecular mechanism underlying this adaptation. Asplenium nidus is a well-known epiphytic fern that is closely related to the terrestrial species Asplenium komarovii. Here, RNA-seq and comparative transcriptomic analyses were performed to explore the underlying basis of the adaptation of A. nidus to extreme environments. A total of 44.04 and 44.57 Mb clean reads were obtained from A. nidus and A. komarovii, respectively, and they were assembled into 89,741 and 77,912 unigenes. Functional annotation showed that 52,305 (58.28% of the total genes for A. nidus) and 45,938 (58.96% of the total genes for A. komarovii) unigenes were annotated in public databases. Genes involved in stress responses and photosynthesis were found to have undergone positive selection in A. nidus. Compared to A. komarovii, transcription factors related to stress response, leaf development, and root development were found to be considerably expanded in A. nidus, especially in the ANR1 subclade of MADS-box family genes which played roles in lateral root development. This study improves our understanding of the adaptation of A. nidus to epiphytic habitats by forming unique strategies.

scholarly journals It is not just about birds: what do acoustic indices reveal about a Costa Rican tropical rainforest?

2021 ◽  
Vol 7 (1) ◽  
pp. 431-442
Author(s):  
Mónica Retamosa Izaguirre ◽  
Jimy Barrantes-Madrigal ◽  
David Segura Sequeira ◽  
Manuel Spínola-Parallada ◽  
Oscar Ramírez-Alán
Keyword(s):  
Tropical Rainforest ◽  
Costa Rican

Sandfly stratification on tree buttresses in a Costa Rican tropical rainforest

1994 ◽  
Vol 10 (1) ◽  
pp. 87-101 ◽  
Author(s):  
Jane Memmott ◽  
Stephen L. Sutton
Keyword(s):  
Tropical Rainforest ◽  
Ground Level ◽  
Costa Rican ◽  
Vertical Stratification ◽  
Experimental Conditions ◽  
Resting Sites ◽  
Phlebotomine Sandflies

ABSTRACTIn humid forests tree buttresses and tree trunks are used as diurnal resting sites by phlebotomine sandflies (Diptera: Psychodidae). When several species are present on the same buttress, the sandfly species are spatially segregated resulting in a pattern of vertical stratification on the buttress within 100 cm of ground level. A change in the distribution of one species induces a change in the distribution of an adjacent species. This is demonstrated under both natural and experimental conditions. Observations of sandflies at dawn and dusk have revealed that the buttress is used as a swarming site; this behaviour provides our favoured explanation for the patterns of vertical stratification on tree buttresses.

Screening bioactive secondary metabolites from Costa Rican enviromental microbial communities

Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
JJ Araya ◽  
M Chavarría ◽  
A Pinto-Tomás ◽  
C Murillo ◽  
L Uribe ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Microbial Communities ◽  
Costa Rican ◽  
Bioactive Secondary Metabolites

Molecular analysis of FVIII gene in severe HA patients of Costa Rica

2010 ◽  
Vol 30 (S 01) ◽  
pp. S150-S152
Author(s):  
G. Jiménez-Cruz ◽  
M. Mendez ◽  
P. Chaverri ◽  
P. Alvarado ◽  
W. Schröder ◽  
...  
Keyword(s):  
Factor Viii ◽  
Coagulation Factor ◽  
Costa Rican ◽  
Factor Viii Gene ◽  
Intron 22 Inversion ◽  
Intron 1 ◽  
Polymerase Chain ◽  
Inversion Analysis

SummaryHaemophilia A (HA) is X-chromosome linked bleeding disorders caused by deficiency of the coagulation factor VIII (FVIII). It is caused by FVIII gene intron 22 inversion (Inv22) in approximately 45% and by intron 1 inversion (Inv1) in 5% of the patients. Both inversions occur as a result of intrachromosomal recombination between homologous regions, in intron 1 or 22 and their extragenic copy located telomeric to the FVIII gene. The aim of this study was to analyze the presence of these mutations in 25 HA Costa Rican families. Patients, methods: We studied 34 HA patients and 110 unrelated obligate members and possible carriers for the presence of Inv22or Inv1. Standard analyses of the factor VIII gene were used incl. Southern blot and long-range polymerase chain reaction for inversion analysis. Results: We found altered Inv22 restriction profiles in 21 patients and 37 carriers. It was found type 1 and type 2 of the inversion of Inv22. During the screening for Inv1 among the HA patient, who were Inv22 negative, we did not found this mutation. Discussion: Our data highlight the importance of the analysis of Inv22 for their association with development of inhibitors in the HA patients and we are continuous searching of Inv1 mutation. This knowledge represents a step for genetic counseling and prevention of the inhibitor development.

Vertical profiles and storage fluxes of CO2, heat and water in a tropical rainforest at Pasoh, Peninsular Malaysia

Tellus B ◽  
2008 ◽  
Vol 60 (4) ◽  
Author(s):  
Shinjiro Ohkubo ◽  
Yoshiko Kosugi ◽  
Satoru Takanashi ◽  
Naoko Matsuo ◽  
Makoto Tani ◽  
...  
Keyword(s):  
Tropical Rainforest ◽  
Peninsular Malaysia ◽  
Vertical Profiles ◽  
And Storage
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