scholarly journals Unusual Stylar-End Breakdown and Sour Rot on Key Lime (Citrus aurantiifolia) in Pre-Harvest Condition in Italy

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 989
Author(s):  
Giorgio Gusella ◽  
Alberto Fiorenza ◽  
Dalia Aiello ◽  
Giancarlo Polizzi
Keyword(s):  
Environmental Conditions ◽  
Field Survey ◽  
Physiological Disorder ◽  
First Report ◽  
Post Harvest ◽  
Agronomic Practices ◽  
Sour Rot ◽  
Key Lime ◽  
Citrus Aurantiifolia ◽  
Citrus Spp

Key lime (Citrus aurantiifolia) is an emerging crop in Italy, especially in the Southern regions, where the environmental conditions are suitable for its cultivation. A field survey in Sicily in a commercial orchard of Key lime revealed the widespread presence of water-soaked spots and sunken/dry lesions at the stylar-end, mainly in pre-harvest condition. Water-soaked spots were attributed to Geotrichum citri-aurantii, an agent of sour rot on Citrus spp., whereas the sunken/dry lesion was attributed to the physiological disorder known as stylar-end breakdown. Sour rot and stylar-end breakdown are usually considered post-harvest diseases and rarely found in the field on fruit still attached to the tree. Although Geotrichum citri-aurantii is not responsible for the stylar-end breakdown, its association with this alteration reveals the importance of the environmental conditions and the agronomic practices in diseases/disorders development. In addition, to our knowledge, this is the first report of Geotrichum citri-aurantii on Key lime in Europe.

scholarly journals First Report of Sour Rot on Post-harvest Oriental Melon, Tomato, Cucumber, Potato, Pumpkin and Carrot Caused by Geotrichum candidum

2011 ◽  
Vol 17 (2) ◽  
pp. 232-234 ◽  
Author(s):  
Yong-Ki Kim ◽  
Taek-Soo Kim ◽  
Hong-Sik Shim ◽  
Kyung-Seok Park ◽  
Wan-Hae Yeh ◽  
...  
Keyword(s):  
Geotrichum Candidum ◽  
First Report ◽  
Post Harvest ◽  
Sour Rot ◽  
Oriental Melon

scholarly journals First Report of Sour Rot Caused by Geotrichum citri-aurantii on Key Lime (Citrus aurantifolia) in Colima State, Mexico

Plant Disease ◽  
2010 ◽  
Vol 94 (4) ◽  
pp. 488-488 ◽  
Author(s):  
L. G. Hernández-Montiel ◽  
R. J. Holguín-Peña ◽  
H. Latisnere-Barragan
Keyword(s):  
Internal Transcribed Spacer ◽  
Potato Dextrose Agar ◽  
Its2 Region ◽  
Citrus Limon ◽  
Sterile Water ◽  
First Report ◽  
Sour Rot ◽  
Morphological Criteria ◽  
White Mycelium ◽  
Key Lime

Sour rot caused by Geotrichum citri-aurantii (Ferraris) R. Cif. & F. Cif. (synonym G. candidum Link) is a disease that causes postharvest losses of lemon (Citrus limon Burm, f.), mandarin (C. reticulata Blanco), and orange (C. sinensis (L.) Osbeck) (2–4) worldwide, but it has not been described on key lime (C. aurantifolia (Chistm.) Swingle) from the State of Colima, Mexico. During the agricultural cycle from 2005 to 2007, 300 fruits of key lime were analyzed. Symptoms observed on approximately 40% of the fruits were wounds with a sour, fermented smell with 30% of the softened area covered with white mycelium. A Geotrichum sp. was isolated on potato dextrose agar (PDA). On the basis of morphological criteria (1) and sequencing the internal transcribed spacer (ITS1-5.8s-ITS2) region of rDNA (GenBank Accession No. EU131181), the fungus was identified as G. citri-aurantii. A sample of the fungus was deposited in the Biology Collection of Yeast and Fungi (Reg. No. CLT20) of Centro de Investigaciones Biológicas del Noroeste, Mexico. Key limes were inoculated with G. citri-aurantii by placing three drops (20 μl each) of a sterile water suspension of 106 arthroconidia/ml in three punctured wounds of 3-mm diameter produced with a sterile scalpel on the fruit surface. Ten plastic boxes with five fruit each were stored for 2 weeks at 20°C and 85% relative humidity. Sour rot symptoms on key lime inoculated with G. citri-aurantii were identical to fruit in the field. The control fruit inoculated with sterile water did not develop symptoms. The fungus was reisolated, confirming Koch's postulates. The test was repeated three times to confirm our diagnosis. To our knowledge, this is the first report of G. citri-aurantii causing sour rot on key lime in Colima, Mexico. References: (1) S. Gente et al. J. Ind. Microbiol. Biotechnol. 33:1019, 2006. (2) P. Plaza et al. J. Hortic. Sci. Biotechnol. 79:935, 2004. (3) J. L. Smilanick et al. Post. Biol. Tech. 47:226, 2008. (4) V. H. Tournas and E. Katsoudas, J. Food. Microbiol. 105:11, 2005.

A reinterpretation of Scottish ‘hummocky moraine’ and its significance for the deglaciation of the Scottish Highlands during the Younger Dryas or Loch Lomond Stadial

1993 ◽  
Vol 130 (3) ◽  
pp. 301-318 ◽  
Author(s):  
Matthew R. Bennett ◽  
Geoffrey S. Boulton
Keyword(s):  
Environmental Conditions ◽  
Field Survey ◽  
Spatial Scales ◽  
Younger Dryas ◽  
North West ◽  
Scottish Highlands ◽  
Ice Cap ◽  
The North ◽  
Loch Lomond

AbstractThe aim of this paper is to demonstrate that much of the ‘hummocky moraine’ present within the northern part of the LochLomond Readvance ice cap formerly situated in the North West Scottish Highlands may be interpreted as suites of ice-front moraines deposited during active decay. These landforms can be used to reconstruct ice cap decay, whichleads to important insights into the shrinking form of the ice cap and associated environmental conditions. Evidence has been collected from 10803 airphotographs and from detailed field survey. It is presented at three spatial scales.

scholarly journals First report on cyanobacterial flora from Masirah Island, Sultanate of Oman

Algologia ◽  
2020 ◽  
Vol 30 (4) ◽  
pp. 440-451
Author(s):  
M. Shamina ◽  
Keyword(s):  
Environmental Conditions ◽  
Food Industry ◽  
Vital Role ◽  
Taxonomic Composition ◽  
Climatic Conditions ◽  
Taxonomic Classification ◽  
Biofuel Production ◽  
Sultanate Of Oman ◽  
First Report ◽  
First Time

Cyanobacteria are organisms which play a vital role in various molecular and biotechnological aspects in food industry, agriculture, pharmaceuticals, neutraceuticals, biofuel production, etc., it is necessary to understand its adaptability to various environmental conditions. Furthermore it is equally important to discover new cyanobacterial taxa and with it occasional changes in taxonomic classification, thus the author set out to study cyanobacteria in extreme climatic conditions of desert, where temperatures are mostly above 45 oC. The taxonomic composition of cyanobacteria of Masirah Island, Sultanate of Oman, was studied for the first time. The studied samples were collected during the period of 2017–2019. The ten samples belonged to two orders: Oscillatoriales Schaffner and Synechococcales L.Hoffmann, Komárek & J.Kastovsky. All of them were filamentous non-heterocyst forms. Three species belonged to the genus Leptolyngbya Anagn. & Komárek, the genera Oscillatoria Vaucher ex Gomont and Lyngbya C.Agardh ex Gomont were represented by two species each, while the genera Pseudanabena Lauterborn, Planktolyngbya Anagn. & Komárek and Geitlerinema (Anagn. & Komárek) Anagn. were one species.

scholarly journals Morphological Variations of Robusta Coffee As a Response to Different Altitude in Lampung

2019 ◽  
Vol 35 (2) ◽  
pp. 103-118
Author(s):  
Erwin Prastowo ◽  
Rina Arimarsetiowati
Keyword(s):  
Environmental Conditions ◽  
Morphological Characteristics ◽  
Fruit Weight ◽  
Leaf Length ◽  
Qualitative Variable ◽  
Morphological Variations ◽  
Agronomic Practices ◽  
Robusta Coffee ◽  
Length Width ◽  
Key Issues

The coffee growth is considered to depend, partly, on the environmental condition at which they develop to accomplish both vegetative and generative stages. An exploratory survey in Lampung aimed at investigating the morphological characteristics of 13 Robusta coffee accessions growing on different altitudes.Local superior coffee clones were selected from eight farms, and subjected to identifications. Three key issues were concerned for both quantitatively, i.e. plant components of leaves, branches, and fruits, and qualitatively such as leaves and fruit characteristics, i.e. colour and shape. The analysis shows a similarity of about 60% of total qualitative variable identified among different accessions. The remaining characters are suggested to be more varying such as flush colour, leaf surface, ripe fruit colour, and stipule shape. Furthermore, a quantitative analysis showed a higher level of similarity for fruit characters, i.e. fruit length, -width, and -thickness, and to a slightly lower level for leaf characteristics, i.e. leaf length and -width, and number of productive branches. It was revealed that some variables, i.e. fruit weight; leaf and seed; and canopy characteristics, explaining the morphological variation of coffee throughout the accessions. Furthermore, cluster analysis may indicated a possible similarity of coffee morphologies either from area with different or the same environmental conditions. A high heterogeneity related to environmental conditions, genotypic variations, plant nutritional status, and agronomic practices, which unable to confirm in the present study, may limit the specific conclusions.

scholarly journals First report of Geotrichum candidum causing postharvest sour rot of carrot in Punjab, Pakistan

2019 ◽  
Vol 101 (3) ◽  
pp. 763-763 ◽  
Author(s):  
Akhtar Hameed ◽  
Muhammad Waqar Alam ◽  
Abdul Rehman ◽  
Khalid Naveed ◽  
Muhammad Atiq ◽  
...  
Keyword(s):  
Geotrichum Candidum ◽  
First Report ◽  
Sour Rot

First report of post-harvest rot of Citrus reticulata cv. ‘Kinnow’ caused by Rhizopus arrhizus in Pakistan

2019 ◽  
Vol 102 (1) ◽  
pp. 279-280
Author(s):  
Anam Moosa ◽  
Ayaz Farzand ◽  
Shahbaz Talib Sahi ◽  
Sajid Aleem Khan ◽  
Aman Ullah Malik ◽  
...  
Keyword(s):  
Rhizopus Arrhizus ◽  
Citrus Reticulata ◽  
First Report ◽  
Post Harvest

scholarly journals First Report of Geotrichum candidum Causing Sour-Rot of Melon in Brazil

Plant Disease ◽  
2020 ◽  
Vol 104 (5) ◽  
pp. 1537-1537
Author(s):  
B. A. Halfeld-Vieira ◽  
D. Terao ◽  
K. L. Nechet
Keyword(s):  
Geotrichum Candidum ◽  
First Report ◽  
Sour Rot

Freshwater and Terrestrial Algae from Ny-Ålesund and Blomstrandhalvøya Island (Svalbard)

ARCTIC ◽  
2011 ◽  
Vol 64 (1) ◽  
pp. 25 ◽  
Author(s):  
Gwang Hoon Kim ◽  
Tatyana A. Klochkova ◽  
Jong Won Han ◽  
Sung-Ho Kang ◽  
Han Gu Choi ◽  
...  
Keyword(s):  
Field Survey ◽  
High Arctic ◽  
First Report ◽  
Freshwater Habitats ◽  
Terrestrial Algae

<span style="font-family: 'Times New Roman'; color: #221e1f;">A field survey of algae and cyanobacteria from terrestrial and freshwater habitats in the vicinity of Ny-Ålesund and on Blomstrandhalvøya Island (Svalbard) was performed in June 2009, and results were compared with data from our fieldwork in June 2006. In total, we identified 30 taxa belonging to 23 genera from the specimens collected near Ny-Ålesund (26 taxa) and on Blomstrandhalvøya Island (24 taxa). Five species previously unrecorded from this locality are depicted, including astaxanthin-containing <em>Haematococcus </em>sp. collected from Blomstrandhalvøya Island. This is the first report on a <em>Haematococcus </em>species from the High Arctic.</span>

Sign in / Sign up

Export Citation Format

Share Document