T. Terrazas

Publications170
h-index24
Citations2,159
Highly Influential Citations100
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Sapindales:Molecular delimitation and infraordinal groups
TLDR
A robust clade of core "sapindalean" taxa is identified that is sister to representatives of Malvales and there was no support for the recognition of the two more narrowly defined orders, Rutales and Sapindales sensu stricto.
High proportion of cactus species threatened with extinction
TLDR
It is shown that cacti are among the most threatened taxonomic groups assessed to date, with 31% of the 1,478 evaluated species threatened, demonstrating the high anthropogenic pressures on biodiversity in arid lands.
Development of successive cambia, cambial activity, and their relationship to physiological traits in Ipomoea arborescens (Convolvulaceae) seedlings.
TLDR
The origin of successive cambia, the occurrence of more than one type of cambium, and parenchyma proliferation are features shared by I. arborescens with its climbing ancestors as a strategy for survival in the harsh environment of tropical deciduous forests.
Epidermal and hypodermal characteristics in North American Cactoideae (Cactaceae)
TLDR
Results show that all species examined have parallelocytic stomata and anticlinal wall surface varies from straight to undulate, contrary to the general opinion that cuticle is thick in most cacti; however, few species such as Ariocarpus fissuratus and several species of Pachycereus show a distinctive thick cuticle.
Anti-ulcer activity of Cyrtocarpa procera analogous to that of Amphipterygium adstringens, both assayed on the experimental gastric injury in rats.
Comparative stem anatomy in the subfamily Cactoideae
TLDR
Phylogenetic analysis based on structural data (morphology and anatomy) showed that the subfamily Cactoideae is monophyletic, and molecular evidence supports molecular evidence and corroborates that highly reduced leaves are the synapomorphy of this clade.
IAWA List of Microscopic Bark Features
Phylogenetic relationships in Peniocereus (Cactaceae) inferred from plastid DNA sequence data
TLDR
The phylogenetic relationships of Peniocereus (Cactaceae) species were studied using parsimony analyses of DNA sequence data and it is shown that the eight species of Peniospermia sensu stricto form a well-supported clade within subtribe Pachycereinae; P. serpentinus is also a member of this subtribe, but is sister to Bergerocactus.
Phylogenetic Analysis of Pachycereus (Cactaceae, Pachycereeae) based on Chloroplast and Nuclear DNA Sequences
TLDR
The results suggest that Pachycereus is paraphyletic and that several other genera may be resurrected to accommodate these new phylogenetic insights, and that the subtribe can be divided into three major clades.
Morpho-anatomical changes and photosynthetic metabolism of Stenocereus beneckei seedlings under soil water deficit.
TLDR
In this study, photosynthetic metabolism (titratable protons) and morpho-anatomical features of Stenocereus beneckei seedlings were examined under limiting water conditions and it seems that soil moisture does not determine CAM expression.
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