Results 71 to 80 of about 1,507 (177)

Bulliform Phytolith Research in Wild and Domesticated Rice Paddy Soil in South China.

open access: yesPLoS ONE, 2015
Bulliform phytoliths play an important role in researching rice origins as they can be used to distinguish between wild and domesticated rice. Rice bulliform phytoliths are characterized by numerous small shallow fish-scale decorations on the lateral ...
Xiujia Huan   +6 more
doaj   +1 more source

Phytolith profile of Acrachne racemosa (B. Heyne ex Roem. & Schult.) Ohwi (Cynodonteae, Chloridoideae, Poaceae).

open access: yesPLoS ONE, 2022
Acrachne racemosa (B. Heyne. ex Roem. & Schult.) Ohwi of the subfamily Chloridoideae of the family Poaceae is an economically important grass species. Grasses are characterized by deposits of silica in the cells or tissues in the form of phytoliths which
Priya Badgal   +3 more
doaj   +1 more source

Triple Oxygen and Hydrogen Isotopes of Soil Water Across Climates, Seasons, and Depths

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Soil waters are a central component of the terrestrial water cycle. Their δ2H, δ18O, and d‐excess values contain rich information about hydroclimate, including the source of moisture and its evaporative history. Paleoclimate workers seek to investigate ancient hydroclimates via triple oxygen isotope geochemistry, termed Δ′17O, which is ...
Julia R. Kelson   +5 more
wiley   +1 more source

Effects of leaf length and development stage on the triple oxygen isotope signature of grass leaf water and phytoliths: insights for a proxy of continental atmospheric humidity [PDF]

open access: yesBiogeosciences, 2019
Continental relative humidity (RH) is a key climate parameter, but there is a lack of quantitative RH proxies suitable for climate model–data comparisons.
A. Alexandre   +12 more
doaj   +1 more source

Marine silicon for biomedical sustainability

open access: yesBMEMat, Volume 4, Issue 2, June 2026.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han   +3 more
wiley   +1 more source

A review of carbon isotopes of phytoliths: implications for phytolith-occluded carbon sources

open access: yesJournal of Soils and Sediments, 2020
Phytolith-occluded carbon (PhytOC) is mainly derived from the products of photosynthesis, which can be preserved in soils and sediments for hundreds-to-thousands of years due to the resilient nature of the amorphous phytolith silica. Therefore, stable and radioactive carbon (C) isotopes of phytoliths can be effectively utilized in paleoecological and ...
Shilei Yang   +8 more
openaire   +2 more sources

The Meaning of Mangabey Molars (And Premolars)

open access: yesEvolutionary Anthropology: Issues, News, and Reviews, Volume 35, Issue 2, June 2026.
ABSTRACT The postcanine teeth of mangabeys (members of Cercocebus and Lophocebus) have figured prominently in discussions about the relationship between hard‐object feeding and dental form. Grey‐cheeked mangabeys (Lophocebus albigena) and sooty mangabeys (Cercocebus atys) both have thickly enameled posterior teeth.
Debbie Guatelli‐Steinberg   +1 more
wiley   +1 more source

Loess Studies in Aotearoa New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway   +4 more
wiley   +1 more source

Traversing the effects of ploidy changes in different Eragrostis curvula genotypes through high‐throughput RNA sequencing

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Polyploidization has played a key role in plant genome evolution. Eragrostis curvula (Schrad.) Ness, a perennial forage grass species of the Poaceae family, is an excellent model for investigating genome duplication due to its natural variation in ploidy levels.
D. F. Santoro   +5 more
wiley   +1 more source

Phytolith Characteristics in Leaves and Culm Sheaths of Three Sympodial Bamboo Genera (Bambusoideae) in the Xishuangbanna Tropical Botanical Garden, China

open access: yesAgronomy
This study focused on the phytolith characteristics of leaves and culm sheaths from nine bamboo species across three genera (Bambusa Schreb., Gigantochloa Nees, and Dendrocalamus Kurz ex Munro) in the Xishuangbanna Tropical Botanical Garden. By analyzing
Taiyang Zhao   +7 more
doaj   +1 more source

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