Selection of tomato genotypes with high resistance to Tetranychus evansi mediated by glandular trichomes

Marinke, Luana de Souza; Resende, Juliano Tadeu Vilela de; Hata, Fernando Teruhiko; Dias, Diego Munhoz; Oliveira, L. V.; Ventura, Maurício Ursi; Zanin, Daniel Suek; Filho, Renato Barros de Lima

doi:10.1007/s12600-022-00984-6

Cited by 10 publications

(3 citation statements)

References 37 publications

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“…The pressure created by the striated cuticles, moves upwards to the trichome head (Figure 2C), and consequently gives rise to an increase in the turgor pressure (asterisks) (Figure 2D). Thereafter, the metabolites are released out of the cuticle head which is hydrophobic [39]. The post-secretory stage is seen as a ruptured capitate trichome head (Figure 2Ei,Eii).…”

Section: Resultsmentioning

confidence: 99%

Development and Biomechanics of Grewia lasiocarpa E. Mey. Ex Harv. Trichomes Exudate

Akwu

Naidoo

Singh

et al. 2023

Plants

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Grewia lasiocarpa E. Mey. Ex Harv., Malvaceae (forest raisin) is a tropical small tree or shrub valued for its ecological importance as well as its nutritional, antioxidant, antibacterial, and anti-cancer properties as well as its ecological and ornamental importance. Glandular and non-glandular trichomes are present on the fruits, stem bark and leaves of G. lasiocarpa and these trichomes are the first line of defense. They are important structures that plants use to combat biotic and abiotic stress. The development of G. lasiocarpa trichomes and the biomechanics of the exudates present in the glandular (capitate) trichome were investigated for the first time using advanced microscopy techniques [Scanning electron microscope (SEM) and Transmission electron microscope (TEM)]. The pressurized cuticular striations may play a role in the exudates’ biomechanics, i.e., releasing secondary metabolites present in the capitate trichome, which was observed to be multidirectional. The presence of many glandular trichomes on a plant implies an increase in the amount of phytometabolites. A common precursor for the development of trichomes (non-glandular and glandular) was observed to be DNA synthesis associated with a periclinal cell division, thus the final fate of the cell is determined by cell cycle regulation, polarity, and expansion. The glandular trichomes of G. lasiocarpa are multicellular and polyglandular, while the non-glandular (glandless) trichomes are either single-celled or multicellular. Since, trichomes ‘house’ phytocompounds of medicinal, nutritional, and agronomical benefits; the molecular and genetic study of the glandular trichomes of Grewia lasiocarpa will be beneficial to humanity.

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Section: Resultsmentioning

confidence: 99%

Development and Biomechanics of Grewia lasiocarpa E. Mey. Ex Harv. Trichomes Exudate

Akwu

Naidoo

Singh

et al. 2023

Plants

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“…The selection of tomato plants with higher densities of glandular trichomes has shown to be an effective criterion to obtain superior resistance to insect pests. This has been widely proven in resistance to spider mites ( Tetranychus urticae , Andrade et al ., 2017; Rakha et al ., 2017a; de Souza Marinke et al ., 2022), whitefly ( Bemisia tabaci ,Rakha et al ., 2017b; Lucatti et al ., 2013), thrips ( Frankliniella occidentalis ,Escobar-Bravo et al ., 2017), and cabbage looper caterpillar ( Trichoplusia ni ,Mymko and Avila-Sakar, 2019). These studies generally attribute the insect pest resistance to the excretion of acylsugars by the tip of glandular trichome type IV, thereby acting as a biopesticide.…”

Section: Discussionmentioning

confidence: 99%

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area inSolanum galapagense

Henzler

Khazaei

2022

Preprint

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Glandular trichomes are physical and chemical barriers used by some tomato wild relatives to confer resistance against insect pests and diseases transmitted by them. Solanum galapagense has been identified as one of the potential sources of insect pest resistance. The present study aimed to examine the trichome diversity and acylsugar concentration of 26 accessions of S. galapagense along with one cultivated tomato (S. lycopersicum) and one cherry tomato (S. l. cerasiforme) cultivar. The results revealed large genetic variation among S. galapagense accessions for all studied traits. The S. galapagense accessions had significantly higher trichome types IV on the adaxial and abaxial surfaces of the leaf and greater acylsugar concentration but smaller leaflet area than cultivated tomato. The selected cherry tomato line represents greater trichome type IV and acylsugar than other groups. The acylsugar concentration was positively associated with trichome type IV but negatively associated with trichome type V on both leaf surfaces. Leaflet area was negatively associated with trichome IV density and acylsugar concentration. Analysis of DNA markers revealed the presence of two previously identified whitefly-resistance alleles in S. galapagense accessions. This study will support breeding programs aiming to improve insect pest resistance in tomato cultivars using crop wild relatives.

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“…The disease mainly affects the leaves, starting with individual seedlings and then spreading rapidly in all directions with these plants as the center, infecting neighboring plants. The main pest species are Aphid [8] , Helicoverpa Armigera [9] , Spider Mite [10] and White Fly [11] , all of them are highly reproductive, fast-growing and widespread when the environment is suitable, and in addition to direct damage, can also spread directly or promote secondary infection of the disease [12] . According to statistics, approximately 15% of global tomato production is affected by pests and diseases each year, with average yield reductions in severe regions capable of reaching 40% to 80% [13,14] .…”

Section: Introductionmentioning

confidence: 99%

Online diagnosis platform for tomato seedling diseases in greenhouse production

Jin,

Zhu,

et al. 2024

International Journal of Agricultural and Biological Engineering

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The facility-based production method is an important stage in the development of modern agriculture, lifting natural light and temperature restrictions and helping to improve agricultural production efficiency. To address the problems of difficulty and low accuracy in detecting pests and diseases in the dense production environment of tomato facilities, an online diagnosis platform for tomato plant diseases based on deep learning and cluster fusion was proposed by collecting images of eight major prevalent pests and diseases during the growing period of tomatoes in a facility-based environment. The diagnostic platform consists of three main parts: pest and disease information detection, clustering and decision-making of detection results, and platform diagnostic display. Firstly, based on the You Only Look Once (YOLO) algorithm, the key information of the disease was extracted by adding attention module (CBAM), multi-scale feature fusion was performed using weighted bidirectional feature pyramid network (BiFPN), and the overall construction was designed to be compressed and lightweight; Secondly, the k-means clustering algorithm is used to fuse with the deep learning results to output pest identification decision values to further improve the accuracy of identification applications; Finally, a detection platform was designed and developed using Python, including the front-end, back-end, and database of the system to realize online diagnosis and interaction of tomato plant pests and diseases. The experiment shows that the algorithm detects tomato plant diseases and insect pests with mAP (mean Average Precision) of 92.7%, weights of 12.8 Megabyte (M), inference time of 33.6 ms. Compared with the current mainstream single-stage detection series algorithms, the improved algorithm model has achieved better performance; The accuracy rate of the platform diagnosis output pests and diseases information of 91.2% for images and 95.2% for videos. It is a great significance to tomato pest control research and the development of smart agriculture.

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Selection of tomato genotypes with high resistance to Tetranychus evansi mediated by glandular trichomes

Cited by 10 publications

References 37 publications

Development and Biomechanics of Grewia lasiocarpa E. Mey. Ex Harv. Trichomes Exudate

Development and Biomechanics of Grewia lasiocarpa E. Mey. Ex Harv. Trichomes Exudate

Leaf trichome diversity, acylsugar concentration, and their relationships to leaf area inSolanum galapagense

Online diagnosis platform for tomato seedling diseases in greenhouse production

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