Results 31 to 40 of about 1,887 (235)

A new species of spiny Solanum (Solanaceae) from Peru

open access: yesPhytoKeys, 2014
A new species of Solanum is described from Peru. Solanum junctum S. Stern & M. Nee, sp nov. is a member of the Torva clade of the spiny solanums (Leptostemonum clade). The narrow corolla lobes and recurved prickles of S.
Stephen Stern
doaj   +1 more source

The genus Acacia Miller in South Africa. I. Stipules and spines

open access: yesBothalia: African Biodiversity & Conservation, 1975
A large number of seedlings and young twigs of South African  Acacia species was sectioned and the vascularization of the nodes and internodes studied.
P. J. Robbertse
doaj   +1 more source

MORPHOLOGICAL FEATURES CONCERNING EPIDERMAL APPENDAGES ON SOME SPECIES OF THE SOLANUM GENUS [PDF]

open access: yesJournal of Plant Development, 2015
The importance of studying the features of the prickles and hairs within the Solanum genus is unanimously acknowledged. In the present work 12 taxa have been examined, thus revealing the presence, density and micro morphological features of the epidermal
Camelia IFRIM, Iuliana GAŢU
doaj  

Hibernation Patterns of the European Hedgehog, Erinaceus europaeus, at a Cornish Rescue Centre

open access: yesAnimals, 2020
The European hedgehog, Erinaceus europaeus, is frequently admitted to rescue centres in the UK. With many overwintering in captivity, there is cause to investigate hibernation patterns in order to inform and improve husbandry and monitoring protocols ...
Kathryn E. South   +2 more
doaj   +1 more source

A new Neocalamites (Sphenophyta) with prickles and attached cones from the Upper Triassic of China [PDF]

open access: yes, 2012
Remains of the extinct sphenophyte (horsetail) . Neocalamites are most widespread in the Middle-Upper Triassic and are typically represented by stem and leaf fragments. Here we report on spectacular new finds of .
Zan, Shuqin   +5 more
core   +2 more sources

Leaf anatomy of the South African Danthonieae (Poaceae). IX Asthenatherum glaucum

open access: yesBothalia: African Biodiversity & Conservation, 1984
The leaf blade anatomy of Asthenatherum glaucum (Nees) Nevski was studied. Detailed descriptions of the leaf section and abaxial epidermis are given and illustrated by means of photomicrographs. The leaf anatomy of all specimens is undoubtedly Kranz with
R. P. Ellis
doaj   +1 more source

Taxonomic significance of the abaxial lemma surface in southern African members of Helictotrichon (Poaceae)

open access: yesBothalia: African Biodiversity & Conservation, 2015
Background: Helictotrichon (excluding Amphibromus, Avenula, Helictochloa and Tricholemma), a genus of temperate C3 grasses, is represented by 14 species in southern Africa.
Aluoneswi C. Mashau   +2 more
doaj   +1 more source

Geometry of rose prickles having failed and not failed.

open access: yes, 2015
Prickles classified as failed have snapped off in mechanical tests. Prickles where the Kevlar loop slipped off are classified as not failed. For Rosa arvensis data obtained with traction parallel to the stem (force direction “1”) are pooled and for Rosa ...
Thomas Speck (52971)   +3 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Morphological Characterization of Prickled and Prickle-free Rubus Using Scanning Electron Microscopy

open access: yesHortScience, 2020
Caneberry crops (raspberry and blackberry) are globally commercialized specialty crops with a high fresh market value. Field management of canes and harvesting of fruits can be complicated by the presence of prickles (the botanically accurate term rather
Archana Khadgi , Courtney A. Weber
doaj   +1 more source

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