Results 11 to 20 of about 116 (88)

A novel cupulate seed plant, Xadzigacalix quatsinoensis gen. et sp. nov., provides new insight into the Mesozoic radiation of gymnosperms. [PDF]

open access: yesAm J Bot, 2022
Abstract Premise Anatomically preserved evidence for a novel clade of gymnosperms emphasizes diversity of seed plants immediately prior to the appearance of angiosperm fossils in the paleontological record. Methods Cupulate seeds from the Early Cretaceous Apple Bay locality (Vancouver Island) are described from serial cellulose acetate peels and three ...
Klymiuk AA, Rothwell GW, Stockey RA.
europepmc   +2 more sources

An integrative view on the systematic position of the cupressophyte Cephalotaxus. [PDF]

open access: yesEcol Evol, 2023
Systematic position of the cupressophyte genus Cephalotaxus has not been resolved; some contended that it should be classified in Cephalotaxaceae while others suggested that it should be included in Taxaceae. Here, we integrated multiple disciplinary evidence including morphology, development, anatomy, embryology, chemistry, and phylogeny, and ...
Yang Y, Yang Z, Ferguson DK, Shong JY.
europepmc   +2 more sources

NGATHA carpel development genes evolved in the common ancestor of seed plants. [PDF]

open access: yesPlant J
SUMMARY The evolution of the carpel, the defining feature of angiosperms, remains a fundamental question in plant biology. Understanding how this organ originated is crucial because it underpins the reproductive success and diversity of flowering plants.
Cota I   +9 more
europepmc   +2 more sources

The role of pollination in controlling Ginkgo biloba ovule development. [PDF]

open access: yesNew Phytol, 2021
Summary Generally, in gymnosperms, pollination and fertilization events are temporally separated and the developmental processes leading the switch from ovule integument into seed coat are still unknown. The single ovule integument of Ginkgo biloba acquires the typical characteristics of the seed coat long before the fertilization event. In this study,
D'Apice G   +9 more
europepmc   +2 more sources

Transcriptome and Metabolome Analysis Unveil Anthocyanin Metabolism in Pink and Red Testa of Peanut (Arachis hypogaea L.). [PDF]

open access: yesInt J Genomics, 2021
Peanut (Arachis hypogaea L.) is an important source of oil and food around the world, and the testa color affects its appearance and commercial value. However, few studies focused on the mechanism of pigment formation in peanut testa. In this study, cultivars Shanhua 15 with pink testa and Zhonghua 12 with red testa were used as materials to perform ...
Xue Q   +8 more
europepmc   +2 more sources

A Comprehensive Review of Germination Impact on Moringa Seeds and Sprouts: Physiological and Biochemical Changes, Bioactive Compounds, Health Benefits, and Food Applications. [PDF]

open access: yesCompr Rev Food Sci Food Saf
ABSTRACT Germination is emerging as a promising bioprocess to produce edible moringa sprouts with enhanced nutritional value and health benefits. Germinated moringa seeds could be marketed as a novel food ingredient for functional food formulations. Attempts to understand the bioactive compounds and their associated health benefits of moringa seeds and
Liu Y, Kai Y, Huang D, Liu SQ, Lu Y.
europepmc   +2 more sources

Restoration seedbanks for mined land restoration

open access: yesRestoration Ecology, Volume 30, Issue S1, October 2022., 2022
Restoration seedbanks have become a key infrastructure resource in efforts to restore damaged and degraded environments across the globe. Large‐scale ecological restoration typically utilizes large volumes of valuable, usually wild‐collected seeds, but insufficient knowledge of seed biology (including storage requirements in some cases) and ecology for
Shane R. Turner   +6 more
wiley   +1 more source

Three‐dimensional X‐ray‐computed tomography of 3300‐ to 6000‐year‐old Citrullus seeds from Libya and Egypt compared to extant seeds throws doubts on species assignments

open access: yesPLANTS, PEOPLE, PLANET, Volume 3, Issue 6, Page 694-702, November 2021., 2021
The watermelon (Citrullus lanatus subsp. vulgaris) is among the world's most important fruit crops. We here use C‐14 dating and morphometric analysis to test whether ancient seeds can be identified to species level, which would help document food expansion, innovation, and diversity in Northeastern Africa. We dated a Libyan seed to 6182–6001 calibrated
Katherine A. Wolcott   +6 more
wiley   +1 more source

Comparative anatomy and genetic bases of fruit development in selected Rubiaceae (Gentianales)

open access: yesAmerican Journal of Botany, Volume 108, Issue 10, Page 1838-1860, October 2021., 2021
Abstract Premise The Rubiaceae are ideal for studying the diversity of fruits that develop from flowers with inferior ovary. We aimed to identify morpho‐anatomical changes during fruit development that distinguish those derived from the carpel versus the extra‐carpellary tissues.
Héctor Salazar‐Duque   +4 more
wiley   +1 more source

Anatomy of the pericarp and seed-coat of Lithraea molleoides (Vell.) Engl. (Anacardiaceae) with taxonomic notes

open access: yesBrazilian Archives of Biology and Technology, 2005
The aim of the present work was to record anatomical data for the fruit and seed of Lithraea molleoides (Vell.) Engl, and compare the results with those for L. brasiliensis and the genera Schinus and Rhus. The L.
Sandra Maria Carmello-Guerreiro   +1 more
doaj   +1 more source

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