Results 71 to 80 of about 22,540 (244)
Plant Direct, Volume 10, Issue 1, January 2026.ABSTRACT In vascular plants, genes in the plastid genome are transcribed by two types of RNA polymerases, namely, phage‐type nuclear‐encoded and bacterial‐type plastid‐encoded plastid RNA polymerases (NEP and PEP, respectively). Eudicots, including Arabidopsis, carry two isoforms of NEP, RPOTp and RPOTmp.
Yushi Kurotaki +4 more
wiley +1 more source
Chemotaxis of Bracken Spermatozoids : The Role of Bimalate Ions [PDF]
, 1958 1. Bracken spermatozoids are chemotactically attracted by malic acid salts and in a pH gradient aggregate between pH 3.5 and 5.6. 2. This response to pH occurs only when the sperm suspension contains malate. 3. At higher pH's, the response to an H+
Brokaw, C. J.
core +1 more source
Refugia or at risk? Alpine snowbank communities in the face of climate change
Conservation Science and Practice, Volume 8, Issue 1, January 2026.We used a literature review of the alpine snowbank communities of the Presidential Range of New Hampshire, USA as an model system for applying the climate change refugia conservation cycle framework to similar imperiled systems globally. We highlight threats posed to these systems, their ability to serve as future refugia, potential management ...
Kyler B. B. Phillips +5 more
wiley +1 more source
Reinwardtia, 2012 BO followed sequences written in the first Flora Malesiana series II for Malesian fern specimen arrangement and flora listing, which then updated as revision for pteridophyte families done successively. However, the sequence in this incomplete flora to
Wita Wardani +2 more
doaj
A contribution to the pteridophyte flora of Transkei
Bothalia: African Biodiversity & Conservation, 1989 An analysis of the data is presented in three tables and a comparison is made with that of adjacent areas. Lygodium kerstenii*** and Dryopteris dracomontana are recorded from Transkei for the first time.
C. T. Johnson, A. Hutchings
doaj +1 more source
Phenolic compounds in species of the Blechnaceae
Plant Biology, Volume 28, Issue 1, Page 282-291, January 2026.The occurrence of caffeic acid derivatives in 32 species of Blechnaceae revealed differences in the presence of rosmarinic acid and blechnic acid B, a novel compound in ferns. Abstract Rosmarinic acid and other caffeic and 4‐coumaric acid derivatives are widespread in land plants.
M. Ufland, M. Petersen
wiley +1 more source
Study of Pteridophyte Diversity and Vegetation Analysis in Jatikerep Legonlele and Nyamplung, Karimunjawa Island Central Jawa [PDF]
, 2011 Kajian Diversitas Pteridofit dan Analisis Vegetasi di Jatikerep Legonlele dan Nyamplung, Pulau Karimunjawa, Jawa Tengah. Kajian Pteridofit dan analisis vegetasi dilakukan di tiga lokasi di Kep.Karimunjawa Jawa Tengah. Tujuan dari kajian ini untuk mendata
Qotrunnada, L. (Labibah) +1 more
core
Ecology and Evolution, Volume 15, Issue 12, December 2025.This study assessed the impacts of four grazing intensities—non‐grazed (NG), lightly grazed (LG), moderately grazed (MG), and highly grazed (HG)—on plant species diversity, community composition, plant height, biomass production, and soil physicochemical properties across three sub‐alpine rangelands in Jumla district, western Nepal. Our results support
Tulasa Chaudhary +5 more
wiley +1 more source
Population Dynamics of Cyrtobagous salviniae on Common Salvinia in South Florida [PDF]
, 2005 Common salvinia (Salvinia minima Baker) is an exotic floating fern that has been in the U.S. from at least 1928(Small 1931). Its pest status in Florida is less clear perhaps due to the presence of the specialized herbivore Cyrtobagous salviniae ...
Center, T.D., Tipping, Philip W.
core
Ecography, Volume 2025, Issue 12, December 2025.The phylogenetic distance among species in a community (community phylogenetic structure) has been used to infer deterministic and stochastic assembly processes, albeit with criticisms. The effect of phylogenetic scale (old versus young lineages) and spatial scale on measures of CPS are rarely tested simultaneously, especially in the boreal biome, yet ...
Angelo D. Armijos Carrion +6 more
wiley +1 more source