Results 91 to 100 of about 12,962 (227)

How many species of algae are there? A reprise. Four kingdoms, 14 phyla, 63 classes and still growing

open access: yesJournal of Phycology, Volume 60, Issue 2, Page 214-228, April 2024.
Abstract To date (1 November 2023), the online database AlgaeBase has documented 50,589 species of living algae and 10,556 fossil species here referred to four kingdoms (Eubacteria, Chromista, Plantae, and Protozoa), 14 phyla, and 63 classes. The algae are the third most speciose grouping of plant‐like organisms after the flowering plants (≈382,000 ...
Michael D. Guiry
wiley   +1 more source

The Effects of Grass Carp on Aquatic Plants, Plankton and Benthos in Ponds [PDF]

open access: yes, 2004
The effects of the grass carp (Ctenopharyngodon idella Val.)on aquatic plant biomass, water quality, phytoplankton, chlorophyll a, zooplankton and benthic fauna were investigated between May and September 2000 in earthen ponds at Cifteler- Sakaryabasi
Demir, N., Kirkagac, Mine
core  

Understanding the salt overly sensitive pathway in Prunus: Identification and characterization of NHX, CIPK, and CBL genes

open access: yesThe Plant Genome, Volume 17, Issue 1, March 2024.
Abstract Salinity is a major abiotic stress factor that can significantly impact crop growth, and productivity. In response to salt stress, the plant Salt Overly Sensitive (SOS) signaling pathway regulates the homeostasis of intracellular sodium ion concentration.
Biswa R. Acharya   +4 more
wiley   +1 more source

Inventarisasi jenis tumbuhan paku-pakuan ( pteridophyta) di area bekas tambang batu bara di Desa Luwe Hulu Kecamatan Lahei Barat Barito Utara [PDF]

open access: yes, 2015
ABSTRAK Tumbuhan paku merupakan tumbuhan yang telah jelas mempunyai kormus, artinya tubuhnya dengan nyata dapat dibedakan dalam tiga bagian pokoknya yaitu akar, batang dan daun.

core  

Mediterranean springs: Keystone ecosystems and biodiversity refugia threatened by global change

open access: yesGlobal Change Biology, Volume 30, Issue 1, January 2024.
Mediterranean spring ecosystems are unique habitats supporting a remarkable array of biodiversity and providing important ecological functions and ecosystem services. However, global change poses important threats to these freshwater ecosystems, such as changes in climate patterns and increasing human pressures like overexploitation and pollution.
M. Fernández‐Martínez   +16 more
wiley   +1 more source

The distribution of the ferns and fern allies found in Indiana [PDF]

open access: yes, 1951
The list of Pteridophyta found in Indiana was compiled from the Flora of Indiana, by Charles C. Deam and the yearly supplementary distribution records prepared by the State Flora Committee of the Indiana Academy of Science.
Clevenger, Sarah
core   +1 more source

Morfogénesis de la fase sexual de seis especies mexicanas de helechos del género Dryopteris (Dryopteridaceae)

open access: yesRevista de Biología Tropical, 1999
Se describe y se compara la morfogénesis de la fase sexual de seis especies de Dryopteris. Las esporas son monoletes, elipsoidales con perina de color pardo a pardo obscuro, su superficie es rugosa de contornos tuberculados y la perina en forma de ...
Blanca Pérez-García   +3 more
doaj  

Inventarisasi tumbuhan paku (pteridophyta) di kawasan perkebunan sawit desa trinsing Kecamatan Teweh Selatan Kabupaten Barito Utara [PDF]

open access: yes, 2015
ABSTRAK Penelitian ini bertujuan untuk (a) mengetahui jenis tumbuhan paku-pakuan yang terdapat di Kawasan Perkebunan Sawit Desa Trinsing Kecamatan Teweh Selatan Kabupaten Barito Utara (b) Menghitung Indeks Dominan Jenis (C) tumbuhan paku-pakuan di ...
Panjaitan, Uswatun Hasanah
core  

Revisión de los grupos de especies del género Blechnum (Blechnaceae-Pteridophyta): el grupo B. Penna-marina [PDF]

open access: yes, 2006
Revisión de los grupos de especies del género Blechnum (Blechnaceae-Pteridophyta): el grupo B. penna-marina. Blechnum asperum, B. penna-marina, B. spicant y B. stoloniferum (grupo B. penna-marina) se estudian aquí conjuntamente con'B.
Prada Moral, Carmen   +1 more
core   +3 more sources

A checklist of Pteridophyta of the north-eastern Orange Free State

open access: yesBothalia: African Biodiversity & Conservation, 1986
A checklist of Pteridophyta recorded within a defined area of the north-eastern Orange Free State is presented. The geology, climate and vegetation of this area are discussed in brief.
J. P. Roux
doaj   +1 more source

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