Results 51 to 60 of about 13,123 (223)
Lacandonia granules are present in the cell nucleus of Welwitschia mirabilis
Background: Lacandonia granules are extranucleolar ribonucleoprotein (RNPs) particles, 32 nanometers in diameter that were first described in the nucleus of Lacandonia schismatica. Cytochemical and immunocytochemical studies suggest that these particles
Lourdes-Teresa Agredano-Moreno +3 more
doaj +1 more source
We comprehensively evaluated the seed plant diversity of Jiangxi province to address the regional biodiversity conservation of Asian subtropical evergreen broad‐leaved forests (EBLFs). Higher species diversity of seed plants was observed in eastern, southern, and western Jiangxi, with elevation and precipitation as mainly environmental factors.
Minqin Duan +8 more
wiley +1 more source
Conflicting phylogenetic relationships among extant gymnosperms.
(A) The four main lineages of extant gymnosperms: (1) conifers (Pinus resinosa), (2) cycads (Cycas sp.), (3) Ginkgo biloba, and (4) gnetophytes (Ephedra chilensis). (B) Two main hypotheses for phylogenetic relationships of gymnosperms.
Zhenxiang Xi (282009) +2 more
core +1 more source
The most threatened plants receive the least scientific attention
Plants sustain all life, providing the energetic and structural basis of ecosystems, but they face a growing risk of extinction. Reversing this decline requires an understanding of how scientific knowledge is distributed among species, and identification of the biases and gaps that hinder effective responses to the threats they face. However, we reveal
Renon S. Andrade +3 more
wiley +1 more source
Advances of the Flowering Genes of Gymnosperms [PDF]
Flowering is an important stage in the life cycle of plants and also a turning point from vegetative growth to reproductive growth. This process is affected by many exogenous and endogenous factors.
MAO, Dun, XU, Feng, YE, Jiabao
core +1 more source
As forests are important for biodiversity and recreation and provide vital resources globally, it is essential that their health can be accurately monitored, for example, by using sap flow probes to measure tree water uptake. We investigated whether sap flow measurements might differ at various locations within the same tree due to variation in wood ...
Stefan Seeger +2 more
wiley +1 more source
When alien plants become health hazards: An applied study on toxic and allergenic risks in Italy
Alien plants are often studied for their ecological harm, but their risks to human and animal health remain poorly documented. This study provides the first comprehensive catalogue of poisonous and allergenic alien plants in Italy, identifying which species are dangerous, where they grow and who is most at risk—from children in city parks to pets and ...
Giulio Barone +3 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Global change and associated disturbances are increasing the risk of regeneration failure for tree species in temperate forests. Seedlings are particularly vulnerable to water stress due to their shallow root systems, making below‐ground plasticity a potentially key ...
Morgane Dendoncker +11 more
wiley +1 more source
Stem water content predicts drought‐induced mortality in tropical semiarid species
Read the free Plain Language Summary for this article on the Journal blog. Abstract Hydraulic Failure is one of the primary mechanisms underlying plant mortality during drought. Hydraulic failure occurs when the plant's xylem, under water stress, crosses a critical percentage of loss of xylem hydraulic conductivity (PLC) threshold, which causes the ...
Lussarina Oliveira Lima +6 more
wiley +1 more source
BIOLOGICAL AND ECONOMIC IMPORTANCE OF FOREST GYMNOSPERMS
The article presents data on the biological and economic features of forest gymnosperms, their chemical composition, medicinal properties, and use in the national ...
Djabborov Bakhtiyor Iskandarovich +2 more
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