Results 51 to 60 of about 7,552 (263)

Study on micropyle closure in Platycladus orientalis and its evolutionary significance

open access: yesXibei zhiwu xuebao
[Objective] In order to enrich the data for the study of micropyle closure in gymnosperms and to provide a reference for the phylogenetic study of gymnosperms, micropyle closure of Platycladus orientalis Franco was investigated.
SHANG Xin   +3 more
doaj   +1 more source

Pectate lyase pollen allergens: sensitization profiles and cross-reactivity pattern. [PDF]

open access: yesPLoS ONE, 2015
Pollen released by allergenic members of the botanically unrelated families of Asteraceae and Cupressaceae represent potent elicitors of respiratory allergies in regions where these plants are present.
Ulrike Pichler   +15 more
doaj   +1 more source

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters   +33 more
wiley   +1 more source

Charred conifer remains from the Late Oligocene – Early Miocene of Northern Hesse (Germany)

open access: yesActa Palaeobotanica, 2018
Fire is an important constituent of many modern and fossil ecosystems. During the last decades a large number of studies have dealt with fires in pre-Cenozoic ecosystems. Evidence for the occurrence of Palaeogene and Neogene wildfires (e.g.
DIETER UHL, ANDRÉ JASPER
doaj   +1 more source

Coniochaeta endophytica sp. nov., a foliar endophyte associated with healthy photosynthetic tissue of Platycladus orientalis (Cupressaceae)

open access: yesPlant and Fungal Systematics, 2019
The ecologically diverse genus Coniochaeta (Coniochaetaceae, Ascomycota) contains numerous endophytic strains that occur in healthy leaves and lichen thalli in temperate and boreal North America. These endophytes frequently represent undescribed species.
A. Harrington   +9 more
semanticscholar   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Mapping arboretum research: Trends, gaps, and opportunities for biodiversity conservation, society, and climate resilience

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Arboreta bridge people and nature while conserving tree biodiversity, supporting climate resilience, and advancing environmental education. This study maps over a century of available and indexed arboretum research, uncovering trends, knowledge gaps, and opportunities for collaboration.
Catarina Patoilo Teixeira   +1 more
wiley   +1 more source

Genoprotective, antioxidant, antifungal and anti-inflammatory evaluation of hydroalcoholic extract of wild-growing Juniperus communis L. (Cupressaceae) native to Romanian southern sub-Carpathian hills

open access: yesBMC Complementary and Alternative Medicine, 2018
BackgroundJuniperus communis L. represents a multi-purpose crop used in the pharmaceutical, food, and cosmetic industry. Several studies present the possible medicinal properties of different Juniperus taxa native to specific geographical area.
I. Fierăscu   +11 more
semanticscholar   +1 more source

Polyethylene tarping elevates temperature and reduces emergence of Phloeosinus punctatus LeConte (Coleoptera: Curculionidae) from giant sequoia debris piles

open access: yesAgricultural and Forest Entomology, EarlyView.
Phloeosinus bark beetles may build up large populations in branch debris piles and stress giant sequoia trees. Covering debris piles with polyethylene sheeting increased the mean ambient temperature in piles and reduced beetle emergence. This was mediated by canopy structure, where ambient temperatures were further elevated under open canopies.
William R. Radecki, Thomas S. Davis
wiley   +1 more source

Nomenclatural notes of Sabina convallium var. microsperma (Cupressaceae)

open access: yesPhytoKeys, 2022
The name Sabina convallium var. microsperma W.C.Cheng & W.T.Wang was not validly published when it was first described in 1975, but was validated in 1978 at the same time as the specific combination Sabina convallium (Rehder & E.H.Wilson) W.C.Cheng & W.T.Wang was validly published in Flora Reipublicae Popularis Sinicae. Under Art.
Yong Yang, Keith Rushforth
openaire   +3 more sources

Home - About - Disclaimer - Privacy