Article
Plant Sciences
Lea De Brito, Valentin Fischer, Cyrille Prestianni
Summary: This study used morphometric methods and ordination analysis to compare the morphological differences between Cretaceous pinaceous cones and extant species. The results showed that the morphological disparity between fossil species and extant species was not significant. Additionally, the study confirmed the high morphological variability of a specific species. The findings suggest that this method is valuable for evaluating Cretaceous pinaceous diversity.
AMERICAN JOURNAL OF BOTANY
(2022)
Article
Plant Sciences
Kelly K. S. Matsunaga, Patrick S. Herendeen, Fabiany Herrera, Niiden Ichinnorov, Peter R. Crane, Gongle Shi
Summary: This study describes the first anatomically preserved occurrences of Schizolepidopsis found in Mongolia and Inner Mongolia, revealing its relationship with extant Pinaceae. S. ediae is placed in the crown group Pinaceae, with other Schizolepidopsis species forming a grade along the Pinaceae stem.
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2021)
Article
Multidisciplinary Sciences
Wafaa A. Mohamed, Maisa M. A. Mansour, Mohamed Z. M. Salem, Hayssam M. Ali, Martin Bohm
Summary: Recent investigations at a Greco-Roman site in Sais have uncovered well-preserved archaeobotanical remains, compared with modern taxa. Despite being buried for over two millenniums, the remains show early stages of silicification and copper mineralization, while exhibiting a close affinity with modern juniper cones. These findings shed light on daily life in the Greco-Roman period.
SCIENTIFIC REPORTS
(2021)
Article
Computer Science, Theory & Methods
Yanyan Dong, Fu-Gui Shi
Summary: In this paper, the notions of fuzzy cones and fuzzy dual cones are extended to the lattice-valued case. It is shown that all convex L-cones form a convex structure and the corresponding L-convex hull formula is given. It is proven that each L-dual cone is convex and closed. The relationships between the L-dual cone of an L-subset and the L-dual cones of its L-closure, L-interior, and L-convex hull are studied. Additionally, the relationships between α-cuts of L-subsets and their dual cones are discussed. Finally, it is shown that the L-dual cone of the L-dual cone of an L-subset is precisely the minimal closed convex L-cone containing this L-subset.
FUZZY SETS AND SYSTEMS
(2023)
Review
Plant Sciences
Hugo Pacheco de Freitas Fraga, Paula Eduarda Cardoso Moraes, Leila do Nascimento Vieira, Miguel Pedro Guerra
Summary: Somatic embryogenesis in conifers and Gnetales is a complex process with multiple steps, including the development of proembryogenic cell masses, histodifferentiation, somatic embryo development, maturation, desiccation, and plant regeneration. Our understanding of this process is mainly based on studies using Pinaceae species as a model, and the evolutionary relationship between conifers is still unclear. This review aims to provide a comprehensive overview of the current knowledge on somatic embryogenesis in conifers and Gnetales, highlighting similarities and current challenges. Further research on this morphogenetic pathway may reveal common points between these species and improve the success of somatic embryogenesis.
Article
Forestry
Eugenia Marcotti, Mariano Martin Amoroso, Milagros Rodriguez-Caton, Leticia Vega, Ana Marina Srur, Ricardo Villalba
Summary: This study shows that Austrocedrus chilensis trees with high resistance to drought in wetter environments have a better chance of survival. The resilience components of resistance, recovery, and relative resilience were calculated, showing that trees in mixed and closed forests have higher resistance to extreme drought events. Increased frequency and intensity of drought events due to climate change may have a significant impact on the carbon reservoirs of Patagonian forests and their ecosystem services.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Geography, Physical
Eliott Capel, Christopher J. Cleal, Thomas Servais, Borja Cascales-Minana
Summary: The Silurian-Devonian plant radiation was triggered by the colonization of subaerial habitats. The diversity patterns of early land plants varied across different palaeogeographical units, with apparent events of diversification and extinction. Global diversity patterns are mostly similar to the historically best-sampled continent, but changes in floral composition through time reveal geographical disparities.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Forestry
Loreta Facciano, Yamila Sasal, Maria Laura Suarez
Summary: Hotter droughts have become important drivers of change in forest canopy structure. Structural loss of overstory trees due to severe droughts triggers changes in understory behavior. This study examines the growth responses of Austrocedrus chilensis trees in three mixed forests in Patagonia Argentina. It shows that understory tree growth is significantly reduced by drought but can also increase over time due to canopy openings. The findings suggest that understory species face increased vulnerability to severe droughts but can take advantage of canopy disturbances to enhance their growth.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Agronomy
Michael J. Wingfield, Seonju Marincowitz, Nam Q. Pham, Francois Roets, Trudy Paap, Brenda D. Wingfield, Janneke Aylward
Summary: This study describes the first occurrence of cypress canker disease on the native South African tree species Widdringtonia nodiflora, caused by the fungus Seiridium neocupressi. This newly discovered disease has significant implications for the native flora in South Africa and requires urgent attention.
Article
Plant Sciences
Anna Stepanova, Anastasia A. Odintsova, Alena Rybkina, Yuliana Rostovtseva, Alexei A. Oskolski
Summary: This study described a fossil wood of the Juniperus genus from the Popov Kamen section in South Russia, providing insights into the taxonomic position and phytogeographic history of the genus. The fossil wood, well-preserved by mummification, showed similarities to the extant Mediterranean species J. excelsa. This is the first reliable macrofossil evidence of the sect. Sabina from Eurasia, and the age of the wood aligns with molecular dating of juniper species in Europe, Asia, and eastern Africa.
Article
Physics, Mathematical
Guillaume Aubrun, Alexander Muller-Hermes
Summary: Every multipartite entangled quantum state becomes fully separable after an entanglement breaking quantum channel acted locally on each of its subsystems. Whether there are other quantum channels with this property has been an open problem with important implications for entanglement theory. We cast this problem in the general setting of proper convex cones in finite-dimensional vector spaces. Our main result is that (C-1, C-2) is resilient if either C-1 or C-2 is a Lorentz cone. Our proof exploits the symmetries of the Lorentz cones and applies two constructions resembling protocols for entanglement distillation.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2023)
Article
Astronomy & Astrophysics
Rong-Xin Miao
Summary: Cone holography proposes a novel approach to understanding the relationship between gravitational theories and conformal field theories. By examining properties such as Weyl anomaly and entanglement entropy, the theory shows promising agreement with existing models.
Article
Plant Sciences
Bohdan Konopka, Jozef Pajtik, Vladimir Seben, Peter Surovy, Katarina Merganicova
Summary: This study aimed to analyze and interpret interspecific differences in foliage biomass/area and woody parts biomass as well as growth efficiency (GE) of four broadleaved species. It found that hornbeam had the largest foliage biomass and the lowest foliage area, with the highest growth efficiency among the species studied. The study provides insights for future research on the impact of stand structure and tree species mixture on the ecological and production properties of forest stands.
Article
Forestry
Ana Cano Ortiz, Giovanni Spampinato, Jose Carlos Pinar Fuentes, Carlos Jose Pinto Gomes, Ricardo Quinto-Canas, Eusebio Cano
Summary: This study focuses on the ecology, taxonomy, and distribution of Juniperus species, particularly Juniperus oxycedrus. It clarifies taxonomical controversies, analyzes phytochemical differences, and explores similarities between species. By examining ecological, bioclimatic, phytochemical, and morphometric characteristics, the study is able to establish clear distinctions and classifications within the genus.
Article
Physics, Fluids & Plasmas
A. de Oliveira Junior, Jakub Czartowski, Karol Zyczkowski, Kamil Korzekwa
Summary: The second law of thermodynamics introduces an asymmetry in the flow of events, known as the thermodynamic arrow of time. This leads to an ordering of the system's state space into past, future, and incomparable regions. In this study, we analyze the structure of thermal cones, which represent the states that a given state can evolve to (future thermal cone) or evolve from (past thermal cone) thermodynamically. We provide explicit constructions of the past thermal cone and the incomparable region for a classical system interacting with a heat bath, and analyze their behavior based on thermodynamic monotones.
Article
Paleontology
Ana Andruchow-Colombo, Ignacio H. Escapa, Raymond J. Carpenter, Robert S. Hill, Ari Iglesias, Ana M. Abarzua, Peter Wilf
Article
Plant Sciences
Myall Tarran, Peter G. Wilson, Rosemary Paull, Ed Biffin, Robert S. Hill
AMERICAN JOURNAL OF BOTANY
(2018)
Article
Plant Sciences
Rosemary Paull, Robert S. Hill, Gregory J. Jordan, J. M. Kale Sniderman
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2019)
Article
Geography, Physical
Vera A. Korasidis, Malcolm W. Wallace, Barbara E. Wagstaff, Robert S. Hill
GLOBAL AND PLANETARY CHANGE
(2019)
Article
Plant Sciences
Kathryn Edwina Hill, Robert Stephen Hill, Jennifer Robyn Watling
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2019)
Article
Geography, Physical
Vera A. Korasidis, Malcolm W. Wallace, Barbara E. Wagstaff, Robert S. Hill
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2019)
Article
Plant Sciences
Krishnamoorthy Srikanth, Robert S. Hill, Sung Soo Whang
IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-PLANT
(2019)
Article
Plant Sciences
Robert S. Hill, Gregory J. Jordan, Raymond J. Carpenter, Rosemary Paull
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2019)
Editorial Material
Multidisciplinary Sciences
Thomas Denk, Robert S. Hill, Marco C. Simeone, Chuck Cannon, Mary E. Dettmann, Paul S. Manos
Article
Plant Sciences
Veit M. Doerken, Robert S. Hill, Gregory J. Jordan, Robert F. Parsons
Summary: The study focused on the structure of phylloclades and true leaves in Phyllocladus, with emphasis on function, ecology, and evolution. It was found that only in the earliest ontogenetic stages do true, needle leaves develop, while mature individuals have entire short shoot systems that increase their photosynthetic area. These adaptations were likely necessary due to competition from angiosperm forests in the Southern Hemisphere.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2021)
Article
Ecology
Michael A. Kipp, Eva E. Stueken, Caroline A. E. Stromberg, William H. Brightly, Victoria M. Arbour, Boglarka Erdei, Robert S. Hill, Kirk R. Johnson, Jiri Kvacek, Jennifer C. McElwain, Ian M. Miller, Miriam Slodownik, Vivi Vajda, Roger Buick
Summary: Cycads, ancient seed plants, obtain nitrogen from symbiotic cyanobacteria, but the symbiosis might have arisen after the Jurassic, explaining the decline in cycad abundance in the Cenozoic era.
NATURE ECOLOGY & EVOLUTION
(2023)
Review
Plant Sciences
Robert S. Hill, Sung Soo Whang, Vera Korasidis, Bradley Bianco, Kathryn E. Hill, Rosemary Paull, Gregory R. Guerin
AUSTRALIAN JOURNAL OF BOTANY
(2020)
Article
Plant Sciences
Michael K. Macphail, Robert S. Hill
AUSTRALIAN JOURNAL OF BOTANY
(2018)
Article
Plant Sciences
Raymond J. Carpenter, Myall Tarran, Robert S. Hill
AUSTRALIAN SYSTEMATIC BOTANY
(2017)
Article
Plant Sciences
Myall Tarran, Peter G. Wilson, Michael K. Macphail, Greg J. Jordan, Robert S. Hill
AMERICAN JOURNAL OF BOTANY
(2017)
