Olive quick decline syndrome

Last updated
Olive quick decline syndrome
Olivenhain mit Xylella fastidiosa bei Surano LE 190710.jpg
An olive grove infested with Xylella fastidiosa in Apulia, Italy in 2019
Common namesOQDS
Causal agentsXylella fastidiosa
HostsOlive trees
VectorsMeadow froghopper
DistributionSouthern Italy
SymptomsDieback of the leaves, twigs and branches
An infected olive grove in Italy in 2019 Alberi di olivo attaccati da xylella nell'agro di Gallipoli.jpg
An infected olive grove in Italy in 2019

Olive quick decline syndrome (OQDS) (in Italian: Complesso del Disseccamento Rapido dell'Olivo, CDRO or CoDiRo) is a wasting disease of olive trees which causes dieback of the leaves, twigs and branches so that the trees no longer produce crops of olives. The main cause is a strain of the bacterium, Xylella fastidiosa , which is spread by plant-sucking insects such as the meadow froghopper. The bacteria restrict the flow of sap within the tree and so choke its extremities. [1]

Contents

Impact

The disease particularly affects olive groves in Southern Italy. It was first detected in Italy in 2013, [2] in the Salento Peninsula; by late 2013, it was estimated that approximately 8,000 hectares were affected. [3] As of 2020, the disease was threatening olive groves and oil production in Italy, Greece, and Spain, which together account for 95% of European oil production. [4] [5] One 2020 model predicts a potential economic impact of the disease for Italy over 50 years between 1.9 billion to 5.6 billion Euros. [4]

In addition to Europe, the disease has also been detected in olive crops in California, Argentina and Brazil. [6]

Symptoms

Symptoms include leaf scorch and desiccation of twigs and branches, beginning at the upper part of the crown and then moving to the rest of the tree, which acquires a burned look. [7]

See also

Related Research Articles

<span class="mw-page-title-main">Olive</span> Flowering plant in the family Oleaceae

The olive, botanical name Olea europaea, meaning 'European olive', is a species of small tree or shrub in the family Oleaceae, found traditionally in the Mediterranean Basin. When in shrub form, it is known as Olea europaea'Montra', dwarf olive, or little olive. The species is cultivated in all the countries of the Mediterranean, as well as in Australia, New Zealand, North and South America and South Africa. It is the type species for its genus, Olea. The tree and its fruit give their name to the Oleaceae plant family, which also includes species such as lilac, jasmine, forsythia, and the true ash tree.

<span class="mw-page-title-main">Ménière's disease</span> Disorder of the inner ear

Ménière's disease (MD) is a disease of the inner ear that is characterized by potentially severe and incapacitating episodes of vertigo, tinnitus, hearing loss, and a feeling of fullness in the ear. Typically, only one ear is affected initially, but over time, both ears may become involved. Episodes generally last from 20 minutes to a few hours. The time between episodes varies. The hearing loss and ringing in the ears can become constant over time.

<span class="mw-page-title-main">Rett syndrome</span> Genetic brain disorder

Rett syndrome (RTT) is a genetic disorder that typically becomes apparent after 6–18 months of age and almost exclusively in females. Symptoms include impairments in language and coordination, and repetitive movements. Those affected often have slower growth, difficulty walking, and a smaller head size. Complications of Rett syndrome can include seizures, scoliosis, and sleeping problems. The severity of the condition is variable.

<span class="mw-page-title-main">Irritable bowel syndrome</span> Functional gastrointestinal disorder

Irritable bowel syndrome (IBS) is a "disorder of gut-brain interaction" characterized by a group of symptoms that commonly include abdominal pain, abdominal bloating and changes in the consistency of bowel movements. These symptoms may occur over a long time, sometimes for years. IBS can negatively affect quality of life and may result in missed school or work or reduced productivity at work. Disorders such as anxiety, major depression, and chronic fatigue syndrome are common among people with IBS.

<span class="mw-page-title-main">Encephalitis lethargica</span> Form of encephalitis (sleeping sickness)

Encephalitis lethargica is an atypical form of encephalitis. Also known as "sleeping sickness" or "sleepy sickness", it was first described in 1917 by neurologist Constantin von Economo and pathologist Jean-René Cruchet. The disease attacks the brain, leaving some victims in a statue-like condition, speechless and motionless. Between 1915 and 1926, an epidemic of encephalitis lethargica spread around the world. The exact number of people infected is unknown, but it is estimated that more than one million people contracted the disease during the epidemic, which directly caused more than 500,000 deaths. Most of those who survived never returned to their pre-morbid vigour.

Paresthesia is an abnormal sensation of the skin with no apparent physical cause. Paresthesia may be transient or chronic, and may have many possible underlying causes. Paresthesias are usually painless and can occur anywhere on the body, but most commonly occur in the arms and legs.

<span class="mw-page-title-main">Hypereosinophilic syndrome</span> Unexplained chronic eosinophila

Hypereosinophilic syndrome is a disease characterized by a persistently elevated eosinophil count in the blood for at least six months without any recognizable cause, with involvement of either the heart, nervous system, or bone marrow.

<span class="mw-page-title-main">Xanthomonadales</span> Order of bacteria

The Xanthomonadales are a bacterial order within the Gammaproteobacteria. They are one of the largest groups of bacterial phytopathogens, harbouring species such as Xanthomonas citri, Xanthomonas euvesicatoria, Xanthomonas oryzae and Xylella fastidiosa. These bacteria affect agriculturally important plants including tomatoes, bananas, citrus plants, rice, and coffee. Many species within the order are also human pathogens. Species within the genus Stenotrophomonas are multidrug resistant opportunistic pathogens that are responsible for nosocomial infections in immunodeficient patients.

<span class="mw-page-title-main">Rubinstein–Taybi syndrome</span> Rare genetic condition

Rubinstein–Taybi syndrome (RTS) is a rare genetic condition characterized by short stature, moderate to severe learning difficulties, distinctive facial features, and broad thumbs and first toes. Other features of the disorder vary among affected individuals. These characteristics are caused by a mutation or deletion in the CREBBP gene, located on chromosome 16, and/or the EP300 gene, located on chromosome 22.

<i>Xylella fastidiosa</i> Bacteria harming plants, including crops

Xylella fastidiosa is an aerobic, Gram-negative bacterium of the genus Xylella. It is a plant pathogen, that grows in the water transport tissues of plants and is transmitted exclusively by xylem sap-feeding insects such as sharpshooters and spittlebugs. Many plant diseases are due to infections of X. fastidiosa, including bacterial leaf scorch, oleander leaf scorch, coffee leaf scorch (CLS), alfalfa dwarf, phony peach disease, and the economically important Pierce's disease of grapes (PD), olive quick decline syndrome (OQDS), and citrus variegated chlorosis (CVC). While the largest outbreaks of X. fastidiosa–related diseases have occurred in the Americas and Europe, this pathogen has also been found in Taiwan, Israel, and a few other countries worldwide.

<i>Graphocephala coccinea</i> Species of true bug

Graphocephala coccinea is a meadow and woodland-dwelling species of brightly colored leafhopper native to North and Central America, from Canada south to Panama. Common names include candy-striped leafhopper, red-banded leafhopper, scarlet-and-green leafhopper and red-and-blue leafhopper.

Mouth and genital ulcers with inflamed cartilage syndrome or MAGIC syndrome refers to a condition in which an individual exhibits symptoms of both relapsing polychondritis (RP) and Behcet's disease (BD). Inflammatory ulcers in the mouth, genitalia, and skin are the hallmark of Behcet's disease (BD), a multisystem illness that is chronic and relapsing. Autoimmune recurrent chondritis of the larynx, tracheobronchial tree, nose, ears, and mouth is known as relapsing polychondritis (RP).

<i>Philaenus spumarius</i> Species of insect

Philaenus spumarius, the meadow froghopper or meadow spittlebug, is a species of insect belonging to the spittlebug family Aphrophoridae. In Italy and America, it is economically important as one of the vectors of Pierce's Disease .

Little cherry disease or LChD, sometimes referred to as little cherry, K & S little cherry or sour cherry decline, is a viral infectious disease that affects cherry trees, most notably sweet cherries and sour cherries . Little cherry disease should not be confused with cherry buckskin disease, which is caused by Phytoplasma. Note that both diseases are among the diseases referred to as cherry decline.

<i>Verrallia aucta</i> Species of insect

Verrallia aucta is a species of fly in the family Pipunculidae. It is found in the Palearctic.

<i>Graphocephala atropunctata</i> Species of true bug

Graphocephala atropunctata, commonly known as the blue-green sharpshooter, is a hemipteran bug native to the United States west coast, as well as Arizona and New Mexico. It carries the phytopathogenic bacteria Xylella fastidiosa which infects the xylem of grape vines causing die-back – known as Pierce's disease. This leads to loss of productivity and economic damage to the California vineyards.

Verdale-de-l'Hérault is an olive cultivar developed in the department of Hérault, in the southern French region of Occitanie. The fruit produces a sweet oil with a light and fruity aroma of greenery, nuts, and apple, and exhibits no bitterness.

<span class="mw-page-title-main">Ascolano (olive)</span> Olive cultivar

Ascolano is a cold-hardy table variety olive cultivar from the Marche and Tuscany regions of Italy that is also grown in California for olive oil.

Pecan bacterial leaf scorch is a disease of the pecan tree that is common throughout the production regions of the United States caused by the pathogenic bacterium Xylella fastidiosa subsp. multiplex. The pathogen was initially discovered to be coincidentally associated with symptoms of pecan fungal leaf scorch in 1998 and has subsequently been found to be endemic in the southeastern United States, as well as Arizona, California, and New Mexico.

<span class="mw-page-title-main">Waardenburg anophthalmia syndrome</span> Medical condition

Waardenburg anophthalmia syndrome is a rare autosomal recessive genetic disorder which is characterized by either microphthalmia or anophthalmia, osseous synostosis, ectrodactylism, polydactylism, and syndactylism. So far, 29 cases from families in Brazil, Italy, Turkey, and Lebanon have been reported worldwide. This condition is caused by homozygous mutations in the SMOC1 gene, in chromosome 14.

References

  1. Olive Quick Decline Syndrome (PDF), Primary Industries and Regions SA, 2017
  2. Stokstad, Erik (8 May 2015). "Italy's olives under siege". Science. 348 (6235): 620. doi:10.1126/science.348.6235.620. ISSN   0036-8075. PMID   25953988.
  3. Martelli, Giovanni P. (1 February 2016). "The current status of the quick decline syndrome of olive in southern Italy". Phytoparasitica. 44 (1): 1–10. doi:10.1007/s12600-015-0498-6. ISSN   1876-7184. S2CID   18746881.
  4. 1 2 Schneider, Kevin; Werf, Wopke van der; Cendoya, Martina; Mourits, Monique; Navas-Cortés, Juan A.; Vicent, Antonio; Lansink, Alfons Oude (28 April 2020). "Impact of Xylella fastidiosa subspecies pauca in European olives". Proceedings of the National Academy of Sciences. 117 (17): 9250–9259. doi: 10.1073/pnas.1912206117 . ISSN   0027-8424. PMC   7196823 . PMID   32284411.
  5. McGrath, Matt (13 April 2020). "Deadly olive tree disease 'could cost billions'". BBC News. Retrieved 5 May 2020.
  6. Saponari, M.; Boscia, D.; Altamura, G.; Loconsole, G.; Zicca, S.; D’Attoma, G.; Morelli, M.; Palmisano, F.; Saponari, A.; Tavano, D.; Savino, V. N. (18 December 2017). "Isolation and pathogenicity of Xylella fastidiosa associated to the olive quick decline syndrome in southern Italy". Scientific Reports. 7 (1): 17723. doi: 10.1038/s41598-017-17957-z . ISSN   2045-2322. PMC   5735170 . PMID   29255232.
  7. Martelli, G. P.; Boscia, D.; Porcelli, F.; Saponari, M. (1 February 2016). "The olive quick decline syndrome in south-east Italy: a threatening phytosanitary emergency". European Journal of Plant Pathology. 144 (2): 235–243. doi:10.1007/s10658-015-0784-7. ISSN   1573-8469. S2CID   16126474.