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Spore bags of helminthosporium contain 8 cells. This disease causes helminthosporiosis of wheat. Soon very small and quite harmful.

fructus forsythiae

Melaleuca leucadendra leaves on white background

Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.

Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.

Photomicrograph of an ascus with eight ascospores. This preparation was stained with acid fuchsin, which stains the cytoplasm of the ascospores a deep red color. The fungus is an ascomycete, Diplodia corticola, that infects the wood of oak trees, and is one of the causes of oak decline disease.The picture was taken with a microscope equipped with differential interference contrast optical system that gives a three dimensional effect.

Euglena is a genus of single cell flagellate eukaryotes under microscopic view for study.

Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.

Lemna minor (Mata Lele, thallus, common duckweed, lesser duckweed). Lemna minor is very suitable for bioethanol production

plant Stem-Collenchyma C.S. under light mircoscope with white background

Jojoba (Simmondsia chinensis) leaves and flower isolated on withe beckground

Trematode parasite under a microscope

Photomicrograph of Paramecium caudatum. Consists of only one cell. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.

Sisymbrium irio been seeds on white background

Close up green Duckweed background. (Scientific name Lemna perpusilla Torr.)

Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.

Freshwater aquatic zooplankton and algae under microscope view

Squash preparation of onion root tip cells stained to reveal chromosomes, Bright field illumination, light microscopy. This image was taken with the X40 objective lens. Depth of focus is extremely low at this magnification. Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced. The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.

Phlomis lychnitis, Lychnite wild yellow flowers, common name hares ear

Aerial view of rapeseed field just prior to harvest in Central Victoria

leaf background

Justicia gendarussa is used as traditional contraceptive method and treatment of various ailments

Cheyletiella blakei Mite - Small Cat pest view under a microscope

Macro of many green round leaves of aquatic plant, Lemnoideae, growing on the water of a stream.

Microscopic image of ascaris cross section

green duckweed Lemna minor floating on water in the pond.

Backgrounds, Duckweed, Freshness, Grass Family, Group Of Objects

Host cells with spores (mold) are inside wood under the microscope for education.

Aerial view of agricultural fields on sunny day in Montreal, Quebec, Canada.

Free Images: "bestof:Potamogeton amplifolius NRCS-2.jpg en Potamogeton amplifolius from Edward G Voss USDA NRCS 1995 Northeast wetland flora Field office guide to plant species"

False foxglove flower aureolaria flava.jpg

Area of plant flora regrowth after burn.jpg

The rough popcornflower plagiobothrys hirtus an endangered plant species.jpg

White bog orchid plant platanthera dilatata blossoms among associated species including paintbrush and lupine.jpg

Ord-Weitzel Gate - Arlington National Cemetery - Arlington VA - 1900.jpg

Rocky_mountain_flowers_(Plate_4)_(6279686091).jpg

Queensland State Archives 4885 Rural Fires Board Hon TA Foley and party at demonstration ISAS Geebung 1953.png

Bidens tripartita NRCS-001.jpg

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