{"title":"Fatty Acids Composition of the Epiphytic Ferns, Platycerium bifurcatum and Asplenium nidus, and the Terrestrial Fern, Asplenium trichomanes","authors":"A. Voronkov, T. Ivanova","doi":"10.1640/0002-8444-111.2.117","DOIUrl":"https://doi.org/10.1640/0002-8444-111.2.117","url":null,"abstract":"Abstract. Ferns are the second most diverse group of higher plants on the planet. However, the metabolic processes of these plants, as well as their reaction to the influence of various environmental factors, benefit from new investigation. In seed plants, an important role of the lipid fatty acid (FA) composition in plant response to a variety of environmental conditions has been repeatedly demonstrated. In this paper, the composition of FAs in the epiphytic ferns, Platycerium bifurcatum and Asplenium nidus, and the terrestrial fern, Asplenium trichomanes was analyzed by gas-liquid chromatography with mass spectrometry. The data obtained clearly indicate that epiphytic ferns have several distinctive features in the composition of their FAs. They are characterized by a high level of saturated FAs (about 50%) and a great variety of very-long-chain FAs (VLCFA). This strongly contrasts with the FAs composition in the terrestrial fern in which unsaturated FAs prevail. High levels of saturated fatty acids, in particular palmitic acid (16:0), together with a high VLCFA content, can be a necessary component in complex interactions with microorganisms. Thus, the specific FA composition of P. bifurcatum and A. nidus may act both as a protective mechanism against the penetration of bacteria and pathogenic fungi, and as a mechanism for the interaction of the epiphytes with saprophytic fungi. It is likely that the composition of FAs in the epiphytic ferns is determined by their habitat and plays an active role in the interaction of plants with their environment.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43391644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New Combination for a Bolbitis Species Commonly Grown in Aquaria.","authors":"J. Knouse","doi":"10.1640/0002-8444-111.2.147","DOIUrl":"https://doi.org/10.1640/0002-8444-111.2.147","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41707870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New Leaves of Dryopteris intermedia Develop More Slowly When the Petioles of Overwintering Leaves are Broken","authors":"Jack T. Tessier","doi":"10.1640/0002-8444-111.2.110","DOIUrl":"https://doi.org/10.1640/0002-8444-111.2.110","url":null,"abstract":"Abstract. Wintergreen ferns keep their leaves for an entire year before replacing them with new leaves in the spring. The overwintering leaves of Dryopteris intermedia provide carbon to the new leaves, and if these old leaves cannot become prostrate before winter via the hinge that develops at the base of the petiole, they are frost damaged and broken, which may affect the development of the new leaves in the subsequent year. I compared the vernal development of new leaves in D. intermedia between plants whose old leaves were intact and those whose petioles had been experimentally broken in the fall to determine the importance of the softening of the petiole-base in old leaves to the development of new leaves. Compared to the control, plants whose old leaves had broken petioles had a one-week delay in the development of their new leaves. This delay demonstrates that the evolutionary development of the petiole hinge may have been critical to the functional benefit associated with new leaf development in the wintergreen leaf habit in ferns.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41737881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The American Fern Journal: After 110 Years, a Look Back","authors":"C. Haufler","doi":"10.1640/0002-8444-111.1.1","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.1","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49359964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Two New Species of Doryopteris (Pteridaceae) from Brazil","authors":"Andreza S. Oliveira, P. Schwartsburd","doi":"10.1640/0002-8444-111.1.35","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.35","url":null,"abstract":"Abstract. Two new species of Doryopteris from Brazil are described and illustrated: Doryopteris spiritu-sanctensis, a monomorphic species endemic to low and middle elevation coastal forests in Espírito Santo, and Doryopteris alata, a small dimorphic species endemic to high elevation, rocky fields within the savannas (cerrados) of Goiás.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48513507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Obituary: José María Gabriel y Galán Moris (1968 - 2020)","authors":"Sonia Molino, A. Seral, R. Vázquez, M. Vicent","doi":"10.1640/0002-8444-111.1.57","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.57","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43311889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Leticia Pacheco, Itzel Sugei Escareño Mendoza, L. Cornejo, Samuel Márquez Bautista, Sara L. Camargo R., A. S. Morales
{"title":"New Fern and Lycophyte Records from the States of Oaxaca, Zacatecas, Puebla, and San Luis Potosí, Mexico","authors":"Leticia Pacheco, Itzel Sugei Escareño Mendoza, L. Cornejo, Samuel Márquez Bautista, Sara L. Camargo R., A. S. Morales","doi":"10.1640/0002-8444-111.1.46","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.46","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41499808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Platycerium Variant from Mount Lewis, Australia","authors":"B. J. Hoshizaki, D. Yansura","doi":"10.1640/0002-8444-111.1.24","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.24","url":null,"abstract":"Abstract. The Platycerium plants circulating amongst hobbyists and growers under the common name Platycerium ‘Mount Lewis' is the same plant as the cultivar known as Platycerium ‘Venose Frond’, or, as it was later called, Platycerium willinckii var. venosum. This plant also shares the trait of raised major veins with P. bifurcatum var. lanciferum, described in 1915. Morphological and molecular comparisons of this plant were made with members of the P. bifurcatum complex, particularly with P. bifurcatum and P. willinckii, to determine its true identity. We conclude that Platycerium ‘Mount Lewis’ is a variant of P. bifurcatum.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41247939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Phenological Stages During In Vitro Culture of Microsorum scolopendria (Burm.f) Copel. from Easter Island","authors":"C. Araya, M. J. Montañola, M. Castro","doi":"10.1640/0002-8444-111.1.43","DOIUrl":"https://doi.org/10.1640/0002-8444-111.1.43","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46346240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}