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Fungus disease of cereal crops
Stem rust, also known as cereal rust, black rust, red rust or red dust, is caused by the fungus Puccinia graminis, which causes significant disease in
Stem_rust
Order of fungi
shoots, stem, fruits, etc. Plants with severe rust infection may appear stunted, chlorotic (yellowed), or may display signs of infection such as rust fruiting
Rust_(fungus)
Fungal disease of wheat
yellow rust (Puccinia striiformis f.sp. tritici), also known as wheat stripe rust, is one of the three major wheat rust diseases, along with stem rust of
Wheat_yellow_rust
American agronomist and Nobel Laureate (1914–2009)
produced a report, "Sounding the Alarm on Global Stem Rust", and their work led to the formation of the Global Rust Initiative. In 2008, with funding from the
Norman_Borlaug
the pace dictated by the limited resources available. Field tests for stem rust of wheat and rice blast disease were begun at several states in the Midwest
United States herbicidal warfare research
United_States_herbicidal_warfare_research
Fungal disease of wheat, most prevalent
Wheat leaf rust (Puccinia triticina) is a fungal disease that affects wheat, barley, rye stems, leaves and grains. In temperate zones it is destructive
Wheat_leaf_rust
Virulent race of stem rust
Ug99 is a lineage of wheat stem rust (Puccinia graminis f. sp. tritici), which is present in wheat fields in several countries in Africa and the Middle
Ug99
Species of grass
(2011-03-25). "A novel Robertsonian translocation event leads to transfer of a stem rust resistance gene (Sr52) effective against race Ug99 from Dasypyrum villosum
Dasypyrum_villosum
Genus of grass cultivated for grain
'take-all' and Cephalosporium stripe. Both of these diseases are soil borne. Stem rust diseases: Caused by Puccinia graminis f. sp. tritici (basidiomycete) fungi
Wheat
Cultivation of plants and animals to produce foods, fibers, fuels, and raw materials
often involved farm subsidies. Soil degradation and diseases such as stem rust are major concerns globally; approximately 40% of the world's agricultural
Agriculture
Cereal grass and grain
some leaf diseases, such as stem rust (Puccinia graminis f. sp. avenae) and crown rust (P. coronata var. avenae). Crown rust infection can greatly reduce
Oat
Hybrid wheat/rye crop
Wheat Rusts - An Atlas of Resistance Genes. Springer. ISBN 9789401040419. Roelfs, A P (1988). "Genetic Control of Phenotypes in Wheat Stem Rust". Annual
Triticale
Index of fungi with the same common name
several rusts (Pucciniales syn. Uredinales) which affect rye (Secale cereale) including: Puccinia spp.: Stem rust (Puccinia graminis) Leaf rust (Puccinia
Rye_rust
Global Rust Initiative. The BGRI has the overarching objective of systematically reducing the world’s vulnerability to stem, yellow, and leaf rusts of wheat
Borlaug Global Rust Initiative
Borlaug_Global_Rust_Initiative
Topics referred to by the same term
rusts include three types of Pucciniae: P. triticina, wheat leaf rust, leaf rust, wheat brown rust, or brown rust P. graminis, stem rust, wheat stem rust
Wheat_rust
E73 bomb, was a U.S. biological cluster bomb designed to deliver wheat stem rust. Mass production of the M115 bomb began in 1953. The weapon was a modified
M115_bomb
Study of fungi
the rapid spread of specific pathogens. Puccinia graminis is a type of stem rust that targets wheat crops worldwide from Africa to Europe. Another devastating
Mycology
Diseases of plants
Rhizoctonia spp. Phakospora pachyrhizi (soybean rust) Puccinia spp. (severe rusts of cereals and grasses)(fungus)|rusts]]. Armillaria spp. (honey fungus species
Plant_disease
Cereal grain
various diseases caused by Cochliobolus sativus, Fusarium ear blight, and stem rust (Puccinia graminis). Bacterial diseases of barley include bacterial blight
Barley
Species of grain
risk if food safety vigilance breaks down. After an absence of 60 years, stem rust (Puccinia graminis f. sp. tritici) has returned to Europe in the 2020s
Rye
Genus of flowering plants belonging to the barberry family
Some Mahonia species serve as alternate hosts for the cereal disease stem rust (Puccinia graminis). Ripe fruits of Mahonia 'Golden Abundance' Immature
Mahonia
resistant to stem rust 15B. Canthatch, 1959, Kenya Farmer × Thatcher. Developed by Agriculture Canada. A Thatcher type that is resistant to stem rust races 15B
List of Canadian heritage wheat varieties
List_of_Canadian_heritage_wheat_varieties
Soviet pathogen weaponization from 1920s to 1990s
such as for rinderpest and anthrax, and anti-crop such as rice blast and stem rust. These programs became immense and were conducted at dozens of secret
Soviet biological weapons program
Soviet_biological_weapons_program
Species of shrub
alternate host species of the wheat stem rust fungus (Puccinia graminis f. sp. tritici), a grass-infecting rust fungus that is a serious fungal disease
Berberis_vulgaris
Genus of rust fungi
Puccinia rusts and the diseases they cause: Puccinia asparagi - Asparagus rust Puccinia evadens - Coyote brush rust Puccinia graminis - Stem rust, also known
Puccinia
Variance of plants in agriculture
agriculture is wheat rust, a pathogenic fungus causing reddish patches, coloured by its spores. A virulent form of the wheat disease, stem rust, strain Ug99,
Crop_diversity
Phytopathologist and mycologist
and mycologist internationally renowned for her pioneering research in stem rust Puccinia graminis, particularly for its effect on the staple Canadian
Margaret_Newton
1943–1973 military research program
biological agents. These included rye stem rust spores (stored at Edgewood Arsenal, 1951–1957), wheat stem rust spores (stored at the same facility 1962–1969)
United States biological weapons program
United_States_biological_weapons_program
Canadian agricultural scientist (1897-1981)
develop cereals that were resistant to disease, specifically stem rust, first for the Dominion Rust Research Laboratory and later for the Department of Agriculture
Cyril_Goulden
Suburb of Sydney, New South Wales, Australia
pastoral holdings. Large estates were broken up during the 1860s due to stem rust, which disrupted the grain industry, leading to the popularity of dairying
Edmondson_Park
American mycologist (1885–1979)
phytopathologist for his studies of the genetics and epidemiology of stem rust. Stakman is credited with improving crop yields both in North America
Elvin_Stakman
Research university in Aarhus, Denmark
The Global Rust Reference Center provides testing and investigation services of new and difficult cases of wheat stem rust/black stem rust. Students from
Aarhus_University
Species of flowering plant
susceptible to pests and plant diseases. However, it may be affected by stem rot and stem rust if grown too tightly or by powdery mildew. Furthermore, aphids and
Centaurea_cyanus
emerging virulent stem rust race". Agricultural Research Service of the U.S. Department of Agriculture. Retrieved January 31, 2012. "Durable Rust Resistance
Global_catastrophe_scenarios
Species of plant
barberry hybrid enables genetic dissection of non-host resistance to the stem rust pathogen Puccinia graminis". Journal of Experimental Botany. 69 (10):
Berberis_thunbergii
Genus of flowering plants representing the barberry family
(Eupithecia exiguata).[citation needed] Berberis species can infect wheat with stem rust, a serious fungal disease of wheat and related grains. B. vulgaris (European
Berberis
Primitive wheat
a stem rust resistance gene which has been introgressed into hexaploid worldwide. It is also the source of Yr34, a resistance gene for yellow rust. The
Einkorn
It has good test weight and straw strength. It is resistant to wheat stem rust, but is susceptible to loose smut and barley yellow dwarf virus. 'Celebration'
List_of_barley_cultivars
Ability of plants to withstand pathogens
current wheat stem rust, leaf rust, and yellow stripe rust epidemics spreading from East Africa into the Indian subcontinent are caused by rust fungi Puccinia
Plant_disease_resistance
American botanist and plant pathologist
2016-03-04. Retrieved 2015-11-23. Schumann, GL and KJ Leonard. 2000. Stem rust of wheat (black rust). The Plant Health Instructor. DOI: 10.1094/PHI-I-2000-0721-01
Ruth_F._Allen
Species of flowering plant
problems in agarita. Sometimes leaf spots and rusts - especially black stem rust - may occur. Stem rust, caused by the fungus Puccinia graminis, is an
Berberis_trifoliolata
Mountain Arsenal "grew, purified and biodemilitarized" plant pathogen Wheat Stem Rust (Agent TX), Puccinia graminis, var. tritici, for the Air Force biological
History_of_biological_warfare
Spanish word used to refer to estates with large business enterprises
immediate cause of this was Peru being struck by both an earthquake and a stem rust epidemic, Chilean soil and climatic conditions were better for cereal
Hacienda
Division of fungi
host families. Such rusts are heteroecious (requiring two hosts) and macrocyclic (producing all five spores types). Wheat stem rust is an example. By convention
Basidiomycota
Fungal disease of pine trees
Western gall rust, also known as pine-pine gall rust, is a fungal disease of pine trees. It is caused by Cronartium harknessii (formerly known as Endocronartium
Western_gall_rust
State of Australia
the state's north and west. Pgt standard race 126 was the most common Stem Rust (Puccinia graminis f. sp. tritici) race here from 1929 to 1941, as it
Victoria_(state)
Census-designated place in Florida, United States
The experiment was part of Project 112 and was labelled DTC Test 69–75. Stem rust, referred to as "Agent TX", was tested to determine its effectiveness
Yeehaw_Junction,_Florida
American academic (1900–1971)
University of Minnesota's Department of Plant Pathology a world-leader in stem rust. Hart was born in Janesville, Wisconsin to Alice Hart (née Echlin) of
Helen Hart (plant pathologist)
Helen_Hart_(plant_pathologist)
Seismic event
to the 1687 earthquake which coincided with both an earthquake with a stem rust epidemic in Peru. Given that Chilean soil and climatic conditions were
1687_Peru_earthquake
Type of wheat
good yields on poor soils, and its resistance to fungal diseases such as stem rust that are prevalent in wet areas. Emmer is grown in Armenia, Morocco, Spain
Emmer
Several-host parasite
is coffee plant, and the alternate host is unknown. Puccinia graminis (Stem rust): the primary hosts include Kentucky bluegrass, barley, and wheat; barberry
Heteroecious
American anti-crop biological munition
anti-crop munition, designed to disseminate anti-crop agents, such as wheat stem rust. The balloon bomb employed a dissemination method similar to that of the
E77_balloon_bomb
Disease affecting soybeans and other legumes
Soybean rust is a disease that affects soybeans and other legumes. It is caused by two types of fungi, Phakopsora pachyrhizi, commonly known as Asian soybean
Soybean_rust
City in Minnesota, United States
production peaked at 18.5 million barrels in 1916. Decades of soil exhaustion, stem rust, and changes in freight tariffs combined to quash the city's flour industry
Minneapolis
Natural movement of air or other gases relative to a planet's surface
S2CID 218563372. "Gone with the wind: Revisiting stem rust dispersal between southern Africa and Australia". GlobalRust.org. Retrieved 2022-01-03. McDonald, Bruce
Wind
British biologist and academic
field samples. In 2018, Saunders published the identification of wheat stem rust in the UK for the first time in sixty years. This devastating disease
Diane_Saunders
World food prices increased dramatically in 2007 and the 1st and 2nd quarter of 2008
prices. Stem rust reappeared in 1998 in Uganda (and possibly earlier in Kenya) with the particularly virulent UG99 fungus. Unlike other rusts, which only
2007–2008 world food price crisis
2007–2008_world_food_price_crisis
Non-native organisms including plants, animals, insects, viruses, fungi, and pathogens
Mahoberberis and Mahonia spp.) as a biological obstacle to the control of black stem rust (Puccinia graminis)". Government of Canada. 2022-06-03. Retrieved 2026-04-02
Invasive_species_in_Canada
Species of grass
(including P. hordei-murini and P. hordei-maritimi), and a fungus called stem rust is known to infect the culms. There is also an aphid, Metopolophium dirhodum
Hordeum_marinum
Scottish plant pathologist (1898–1980)
of Black Stem Rust of wheat L Ogilvie and I G Thorpe 2nd European Colloquium on Black Rust of Cereals, Madrid April 1961 Studies of Black Rust Epidemiology
Lawrence_Ogilvie
American geneticist
genes for resistance to powdery mildew, common bunt, wheat leaf rust, and stem rust. The methods pioneered by Sears are also important for introducing
Ernest_Robert_Sears
dating back to 1687 when Peru was struck by both an earthquake and a stem rust epidemic. Chilean soil and climatic conditions were better for cereal
Chilean_wheat_cycle
Canadian botanist and botanical illustrator
Güssow, H. T. 1917. The Black or Stem-Rust of Wheat. A popular account of the nature, cause and prevention of grain rust. Bull. 33, n.s., Dominion Experimental
Faith_Fyles
Chronological listing of events of importance
of seeds 1767; Felice Fontana and Giovanni Targioni Tozzetti show that stem rust is caused by the fungus Puccinia graminis 1802; Lime sulfur first used
Timeline_of_plant_pathology
Genus of fungi
Rosaceae. This includes all species of roses. Rose rust causes distortion and discoloration on stems. Sometimes it will cause galls and lesions. In the
Phragmidium
Women in science from 190 1 to 2000 A.D
(1887–1971), Canadian plant phytopathologist and mycologist (pioneer in stem rust research) Christiane Nüsslein-Volhard (born 1942), German geneticist and
List of women scientists in the 20th century
List_of_women_scientists_in_the_20th_century
retirement. Newton established an annual stem rust survey for Western Canada, discovering a diversity of races in rust populations, which eventually enabled
Cereal_Research_Centre
Staphylococcus aureus, used as an incapacitating agent Stem rust, both wheat and rye stem rust, fungal anticrop agent Rice blast, fungal anticrop agent
Outline of U.S. biological weapons
Outline_of_U.S._biological_weapons
US Animal and Plant Health Inspection Service division
black stem rust, caused by Puccinia graminis chrysanthemum white rust, caused by Puccinia horiana Citrus diseases European larch canker Gladiolus rust, caused
Plant Protection and Quarantine
Plant_Protection_and_Quarantine
Structure produced by rust fungi as part of the reproductive cycle
listed here with their hosts. Puccinia graminis or known commonly as black stem rust. It infects many different cereal crops. Gymnosporangium juniperi-virginianae
Telium
Airport in Florida
acres (0.34 km2) were used in the 1950s for a secret project to produce stem rust spores for possible use as a biological agent against wheat production
Boca_Raton_Airport
Phaeosphaeria nodorum Stagonospora nodorum [anamorph] Septoria nodorum Stem rust = black rust Puccinia graminis Puccinia graminis f.sp. tritici (Ug99) Storage
List_of_wheat_diseases
Agent that carries and transmits pathogens
scale programs removed millions of Berberis shrubs in order to reduce stem rust epidemics in wheat growing regions. The ability of Puccinia graminis to
Disease_vector
American plant scientist
released a report detailing the threat to global wheat supplies posed by the stem rust variant Ug99. The report sounded the alarm to risks facing wheat supplies
Ronnie_Coffman
[teleomorph] = Leptosphaeria nodorum Stalk smut (stripe smut) Urocystis occulta Stem rust Puccinia graminis Storage molds Alternaria spp. Aspergillus spp. Epicoccum
List_of_rye_diseases
1541–1818 territory of the Spanish Empire
key wheat supplier to Peru, especially after the 1687 earthquake and stem rust epidemic in Peru devastated local production. Chilean latifundia focused
Captaincy_General_of_Chile
Farms producing only one crop at a time
Drought and Health. Retrieved 22 March 2026. Vidal, John (19 March 2009). "'Stem rust' fungus threatens global wheat harvest". The Guardian. London. Retrieved
Monoculture
1962–1973 US biological and chemical weapon test project
globii, staphylococcal enterotoxin Type B, Puccinia graminis var. tritici (stem rust of wheat). Agents and simulants were usually dispensed as aerosols using
Project_112
Species of flowering plant in the mistletoe family
JSTOR 2428127. Woods, A. J.; et al. (2000). "Predicted impacts of hard pine stem rusts on lodgepole pine dominated stands in central British Columbia". Canadian
Comandra
Canadian agronomist
western Canada was 'Marquis'. However, 'Marquis' was not resistant to stem rust. In seeking newer and better varieties Saunders developed three other
Charles_E._Saunders
Family of flowering plants
Mahoberberis". USDA PLANTS. Retrieved 2020-11-17. "Puccinia graminis (stem rust of cereals)". Invasive Species Compendium. Centre for Agriculture and
Berberidaceae
cereals to Peru in 1687 when Peru was struck by both an earthquake and a stem rust epidemic. Chilean soil and climatic conditions were better for cereal
Agriculture_in_Chile
Species of grass
susceptible to two widespread diseases that infect Avena species, oat crown rust and stem rust. It is also susceptible to the wheat dwarf virus. Genetic analysis
Avena_sterilis
perennials. Berberis fruits are sometimes used in cooking. The genus hosts stem rust, which can infest cereal grains. Ranunculales Berberis vulgaris Buxaceae
List of basal eudicot families
List_of_basal_eudicot_families
Thanatephorus cucumeris [teleomorph] Rusts Crown rust Puccinia coronata var. hordei Leaf rust Puccinia hordei Stem rust Puccinia graminis f.sp. secalis Puccinia
List_of_barley_diseases
Widespread scarcity of food
Food riots took place in many countries across the world. An epidemic of stem rust, which is destructive to wheat and is caused by race Ug99, has in 2007
Famine
Fort in New York state
Brucellosis Q fever Enterotoxin type B Rice blast Tularemia VEE Wheat stem rust Researched agents AHF BHF Bird flu CHIKV Dengue fever EEE Glanders Hantavirus
Fort_Terry
spent 341 million Birr on food purchases during the 1985-87 period. Wheat stem rust threatens the Ethiopian harvest every year and recently that especially
Agriculture_in_Ethiopia
Species of conifer tree
because at this time fusiform rust is not as likely to infect the main stem. Due to oaks being the alternate host for fusiform rust, where it lives out three
Pinus_elliottii
genetically engineered wheat strains resistant to the fungal disease stem rust, which is a constant threat to wheat crops in the developing world. Scientists
2013_in_science
Syrian born plant virologist
immediately set to work in her new home, and also dove into the yellow rust and stem rust situation in Lebanon. During this time she put together definitive
Safaa_Kumari
produced from a stem rather than from the more typical axil of a leaf. Adventitious roots may develop from nodes of prostrate stems of some plant species
Glossary_of_botanical_terms
1969 speech by U.S. President Richard Nixon
at Pine Bluff. Other agents, including anti-crop agents such as wheat stem rust, were stored at Beale Air Force Base and Rocky Mountain Arsenal. These
Statement on Chemical and Biological Defense Policies and Programs
Statement_on_Chemical_and_Biological_Defense_Policies_and_Programs
Species of fungus
fungal plant pathogen that causes cedar-hawthorn rust. Gymnosporangium globosum is a heteroecious rust fungus that requires two hosts to complete its life
Gymnosporangium_globosum
Measure of food availability
no contingency plans in place. For example, Ug99, a lineage of wheat stem rust, which can cause up to 100% crop losses, is present in wheat fields in
Food_security
Overview of human–microbe interactions
crop plants. Fungi cause serious crop diseases such as maize leaf rust, wheat stem rust, and powdery mildew. Bacteria cause plant diseases including leaf
Human interactions with microbes
Human_interactions_with_microbes
Period of Chilean history from 1600 to 1810
cereals to Peru in 1687 when Peru was struck by both an earthquake and a stem rust epidemic. Chilean soil and climatic conditions were better for cereal
Colonial_Chile
Overview of human–fungi interactions
Wanyera, Ruth; Herrera-Foessel, Sybil and Ward, Richard W. (2008). Will Stem Rust Destroy The World's Wheat Crop?. Vol. 98. pp. 272–309. doi:10.1016/S0065-2113(08)00205-8
Human_interactions_with_fungi
cereals to Peru in 1687 when Peru was struck by both an earthquake and a stem rust epidemic. Chilean soil and climatic conditions were better for cereal
Economic_history_of_Chile
Species of fungus
Symptomology is similar to that of other rust species. First appearing as small yellow pustules on leaves, bolls, and stems, the spots will then transform into
Puccinia_schedonnardii
STEM RUST
STEM RUST
Male
English
Short form of English Stewart, STEW means "steward."
Boy/Male
Hindu
Lotus stem
Girl/Female
Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Tamil, Telugu
Stem of Lotus
Boy/Male
Hindu, Indian, Sanskrit
Stem; Hollow Reed
Boy/Male
American, Anglo, British, English
Stem
Male
Swedish
Swedish form of Old Norse Steinn, STEN means "stone."
Boy/Male
Anglo Saxon
Stem.
Boy/Male
American, British, English
Stem
Male
English
Variant spelling of English unisex Steph, STEF means "crown."
Male
Hebrew
(ש×Öµ×) Hebrew name SHEM means "conspicuous position, name, renown, sigma." In the bible, this is the name of a son of Noah.
Boy/Male
Scottish
Steward.
Boy/Male
English
Austere
Biblical
same as Shem
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Tamil, Telugu
Lotus Stem
Girl/Female
Assamese, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Tamil, Telugu
Stem of Lotus
Male
English
Short form of English Stephen, STE means "crown."
Boy/Male
Hindu, Indian
Stem of Lotus
Boy/Male
Australian, Finnish, German, Slavic
Stem
Boy/Male
Tamil
Lotus stem
Girl/Female
Muslim
Name of a flower
STEM RUST
STEM RUST
Girl/Female
Hindu, Indian
Render to the God
Boy/Male
Indian
Towards the fire
Boy/Male
Indian
Beautiful
Girl/Female
Hindu
Light victory wealthy
Girl/Female
English
River.
Girl/Female
American, Anglo, Australian, British, Chinese, English
Child of Mighty Warrior; Child of Maud; Matthew's Child
Girl/Female
Indian, Punjabi, Sikh
Always Doing Work in God Way; Beloved of God
Boy/Male
Indian, Sanskrit
Rich in Herds
Female
Finnish
Feminine form of Finnish Eerikki, EERIKA means "ever-ruler."
Boy/Male
Anglo, British, English
From the Dark Valley
STEM RUST
STEM RUST
STEM RUST
STEM RUST
STEM RUST
n.
A short article in a newspaper; a paragraph; as, an item concerning the weather.
a.
Embracing the stem with its base; amplexicaul; as a leaf or petiole.
v. i.
To emit steam or vapor.
v. i.
Alt. of Steem
v. i.
A small space or distance; as, it is but a step.
v. i.
To move or travel by the agency of steam.
n.
Alt. of Steem
v. i.
To generate steam; as, the boiler steams well.
n.
See Stee.
n.
A little branch which connects a fruit, flower, or leaf with a main branch; a peduncle, pedicel, or petiole; as, the stem of an apple or a cherry.
n.
A stem-winding watch.
v. t.
To oppose or cut with, or as with, the stem of a vessel; to resist, or make progress against; to stop or check the flow of, as a current.
a.
Wound by mechanism connected with the stem; as, a stem-winding watch.
n. & v.
See 1st and 2nd Stem.
v. t.
To remove the stem or stems from; as, to stem cherries; to remove the stem and its appendages (ribs and veins) from; as, to stem tobacco leaves.
v. t.
To expose to the action of steam; to apply steam to for softening, dressing, or preparing; as, to steam wood; to steamcloth; to steam food, etc.
n.
Anything resembling a stem or stalk; as, the stem of a tobacco pipe; the stem of a watch case, or that part to which the ring, by which it is suspended, is attached.
v. t.
To boil slowly, or with the simmering or moderate heat; to seethe; to cook in a little liquid, over a gentle fire, without boiling; as, to stew meat; to stew oysters; to stew apples.
v. t.
To fix the foot of (a mast) in its step; to erect.
v. i.
The space passed over by one movement of the foot in walking or running; as, one step is generally about three feet, but may be more or less. Used also figuratively of any kind of progress; as, he improved step by step, or by steps.