Nematodes associated with the lychee crop (Litchi chinensis) in Oaxaca, Mexico

Martínez-Bolaños, Misael; Martínez-Bolaños, Luciano; Martínez-Reyes, Rebeca; Arrazate, Carlos Hugo Avendaño; Cruz-Chávez, Marco Antonio; Gálvez-Marroquín, Luis Antonio

doi:10.18781/r.mex.fit.2005-8

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…The initial infection occurs in the field, with subsequent growth and disease development occurring as the fruit ripens during storage and transportation. Only C. gloeosporioides causes the disease in the field and laboratory (Martínez‐Bolaños et al., 2015). In Guangdong, up to 85%–100% of the fruit may be infected in the field, and thus it is the most important factor in causing the rot and browning of the fruit during storage and transportation (A. Liu et al., 2005).…”

Section: Postharvest Handling Of Litchi Fruitmentioning

confidence: 99%

Litchi postharvest physiology and handling

Huang,

Paull,

Wang

2024

Crop Science

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Litchi (Litchi chinensis Sonn.) fruit, with its bright red color and sweet and juicy aril, is an important fruit crop in Asia, Africa, Australia, and South America. A major cause of the postharvest loss of litchi fruit is browning and decay. Chlorophyll breakdown and flavonoid synthesis occur simultaneously during the maturation of this nonclimacteric fruit. However, once litchi fruit is harvested, pericarp desiccation and membrane breakdown occur, which leads to browning with the rate of browning and later microcracking paralleling water loss rate. In addition, chilling injury can contribute to and increase pericarp browning and membrane leakage. Polyphenol oxidase and peroxidase are possibly key enzymes in the early stages of browning. An increase in the leakage of the pericarp membrane also occurs that correlates with browning. Many chemical treatments have been evaluated to retard pericarp browning, such as melatonin, hot water, acidified calcium sulfate (ACS), adenosine triphosphate, and tea seed oil. During long distance transportation, chemical treatments that involve sulfur are used, including SO2 fumigation, acid dip after SO2 fumigation, SO2 fumigation and sulfur sheet package, or SO2 fumigation followed by controlled atmosphere (CA), if approved by the importing country. Other treatments that avoid the use of SO2 include melatonin, ACS, and hot water brushing combined with an acid dip, CA, and modified atmosphere packaging. Anthracnose is a common disease that accelerates browning and decay. Penicillium species as a saprophyte is also common with fruit infection occurring in the field, during harvest, in the packhouse, cold rooms, and shipping containers. Sulfur sheet or CA is used to reduce fruit rot after SO2 fumigation and Sportak (prochloraz) for the control of penicillium. However, a replacement for postharvest SO2 use is still urgently needed.

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Section: Postharvest Handling Of Litchi Fruitmentioning

confidence: 99%

Litchi postharvest physiology and handling

Huang,

Paull,

Wang

2024

Crop Science

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“…On the other hand, it is difficult to establish various leaf nutrient norms due to divergences of soil type, diagnosis time, and the methods to standardize the norms. In fact, a tentative nutrition program, illustrating the fertilizer choices based on phenological stage of lychee, was suggested in Australia (Martínez-Bolaños, 2020). Nowaday, appropriate fertilization by leaf nutrients diagnosis to the phytoprotection (e.g.…”

Section: Introductionmentioning

confidence: 99%

Verification of nutrients standards for diagnosis of Yuhebao lychee (Litchi chinensis Sonn.)

Yong¹,

Wei²,

Ho³

2022

J. Soil Sci. Environ. Manage.

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The steady production of Yuhebao lychee (Litchi chinensis Sonn.) is involved in accurate fertilization management. The critical period of nutrient requirement for Yuhebao lychee is during January to June every year in Taiwan because the period is from flowering to fruiting stage. It would serve the references of fertilization if there is an accurate standard for nutrient management of Yuhebao lychee. This study was conducted to establish the accurate standard of sampling period and location for nutrient diagnosis of Yuhebao lychee by analyzing essential nutrient elements of leaves from preanthesis to harvest stage. The leaves were sampled every month on middle of January to June for the estimation of leaf nutrients by inductively coupled plasma spectrophotometer (ICP). The results revealed that the appropriate sampling position and period of leaves should be from the leaves below flower spike during the flowering period. On the other hand, the mature leaves from either the branch of flowering or non-flowering terminal for nutrient management of Yuhebao lychee is recommended.

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Descriptions of Trichodorus lownsberyi sp. n., Nanidorus minor (Colbran, 1956) Siddiqi, 1974 (Nematoda: Trichodoridae) and Longidorus quercus sp. n. (Nematoda: Longidoridae) from Mexico

2021

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Summary A new species of stubby root nematode, Trichodorus lownsberyi sp. n., collected from soil around Buxus sempervirens at Montecillo Campus, Colegio de Postgraduados, Mexico, is described and illustrated. Trichodorus lownsberyi sp. n. is characterised by the abundant males with a characteristic spicule shape, the narrower part about mid-blade having visible bristles in most specimens, and the presence and position of the three ventromedian cervical papillae, which are all anterior to the secretory-excretory pore. Females possess a rhomboid-shaped vagina and oval to rounded triangular vaginal sclerotised pieces with a pore-like vulva. The phylogenetic relationships of T. lownsberyi sp. n. with related species were constructed using the ITS2 rRNA and the D2-D3 expansion segments of 28S rRNA gene sequences. Trichodorus lownsberyi sp. n. was a sister species to T. viruliferus in the phylogenetic trees. A Mexican population of Nanidorus minor from a peach orchard is also described and illustrated. The new needle nematode, Longidorus quercus sp. n., was recovered from soil around roots of oak, Quercus crassipes, from Cerro Jusda ‘El Diablo’ in Mexico State. Longidorus quercus sp. n. females are characterised by the C-shaped posterior end of the body after fixation, L = 4.9 (3.9-5.6) mm, a = 71 (60.8-93.2), lip region rounded, sometimes slightly flattened, marked by depression, odontostylet 170 (144-206) μm long, hemispherical to bluntly conoid tail and no males. The new species was characterised using the D2-D3 of 28S rRNA and COI gene sequences. The phylogenetic relationships of L. quercus sp. n. with other Longidorus species were reconstructed using the D2-D3 of 28S rRNA gene sequences.

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Nematodes associated with the lychee crop (Litchi chinensis) in Oaxaca, Mexico

Cited by 3 publications

References 6 publications

Litchi postharvest physiology and handling

Litchi postharvest physiology and handling

Verification of nutrients standards for diagnosis of Yuhebao lychee (Litchi chinensis Sonn.)

Descriptions of Trichodorus lownsberyi sp. n., Nanidorus minor (Colbran, 1956) Siddiqi, 1974 (Nematoda: Trichodoridae) and Longidorus quercus sp. n. (Nematoda: Longidoridae) from Mexico

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