Control of Smoothseed Alfalfa Dodder (Cuscuta approximata) in Alfalfa (Medicago sativa)

Tepe, İşık; Çelebi, Şeyda Zorer; Kaya, İlhan; Özkan, Reyyan Yergin

doi:10.17957/ijab/15.0266

Cited by 4 publications

(2 citation statements)

References 9 publications

(9 reference statements)

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“…Alfalfa crop losses due to field dodder had been assessed in earlier studies at 60% in Chile, and 80% in Serbia (Stojanovic & Mijatovic 1973;Mishra 2009). In a three-year field trial alfalfa loss due to smoothseed dodder (Cuscuta approximata) compared to uninfested alfalfa plots changed from 7% to 70% in different years (Tepe et al 2017). The growth of field dodder was faster than that of Mikania micrantha, an invasive alien plant in China, and damage caused by field dodder qualified it a biological agent to control M. micrantha (Deng et al 2003;Zan et al 2003;Zhang et al 2004;Li et al 2012).…”

Section: Effects Of Field Dodder and Glyphosate Applications On Alfalfa Yieldmentioning

confidence: 99%

The Effect of Glyphosate on Anatomical and Physiological Features of Alfalfa Infested with Field Dodder (Cuscuta campestris Yunck.)

Krsmanovic¹,

Uludağ²,

Božić³

et al. 2020

Tarım Bilimleri Dergisi

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Field dodder (Cuscuta campestris Yunck.) is a very harmful parasitic weed species worldwide which infests many crops, including alfalfa as a foremost forage crop. Glyphosate has been an effective herbicide for field dodder control even though side effects occasionally occur in alfalfa plants. To find out and quantify the effects of glyphosate (288 and 360 g a.i. ha-1) on field dodder control, alfalfa forage yield, and physiological and anatomical features of alfalfa plants under controlled conditions were aims of the study. Physiologic (chlorophyll a, chlorophyll b, total carotenoids); and anatomic parameters were measured. Leaf anatomic parameters were thicknesses of upper epidermis, palisade and spongy tissues, mesophyll and underside leaf epidermis, and diameter of bundle sheath cells. Stem anatomic parameters were thicknesses of epidermis and cortex, and diameters of stem and central cylinder (pith). Both rates of glyphosate caused recovery of the harmful effects of field dodder on alfalfa, which shows that glyphosate can control field dodder at early stages of infestation on alfalfa.

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Section: Effects Of Field Dodder and Glyphosate Applications On Alfalfa Yieldmentioning

confidence: 99%

The Effect of Glyphosate on Anatomical and Physiological Features of Alfalfa Infested with Field Dodder (Cuscuta campestris Yunck.)

Krsmanovic¹,

Uludağ²,

Božić³

et al. 2020

Tarım Bilimleri Dergisi

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“…At germination, Cuscuta species form a rudimentary and short-lived (approximately 4 to 5 d) root system before they connect to the host plant (Teixeira-Costa and Davis 2021;Truscott 1966). Cuscuta can cause serious crop yield losses (Dawson et al 1994;Li et al 2007;Tepe et al 2017). It is considered to be the third most detrimental genus of parasitic plants worldwide, after Striga and Orobanche, as it can infect nearly all dicotyledonous species and occurs in a wide variety of climates and ecosystems on all continents except Antarctica (Albert et al 2008;Costea et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Implications of climate change for environmental niche overlap between fiveCuscutapest species and their two main Leguminosae host crop species

Cai

Xiao²,

Wan³

et al. 2022

Weed Sci

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Some parasitic plants are major pests in agriculture, but how this might be affected by climate change remains largely unknown. In this study, we assessed this for five generalist holoparasitic Cuscuta species (smoothseed alfalfa dodder (Cuscuta approximata Bab.), alfalfa dodder (Cuscuta europaea L.), soybean dodder (Cuscuta chinensis C. Wright), Peruvian dodder (Cuscuta australis R. Br.), Japanese dodder (Cuscuta japonica Choisy)) and two of their main Leguminosae host crop species (soybean [Glycine max (L.) Merr.] and alfalfa (Medicago sativa L.)). For each of the five Cuscuta species and the two crop species, we ran MaxEnt models, using climatic and soil variables to predict their potential current distributions and potential future distributions for 2070. We ran species distribution models for all seven species for multiple climate-change scenarios, and tested for changes in the overlap of suitable ranges of each crop with the five parasites. We found that annual mean temperature and isothermality are the main bioclimatic factors determining the suitable habitats of the Cuscuta species and their hosts. For both host species, the marginally to optimally suitable area will increase by 2070 for all four RCP scenarios. For most of the Cuscuta species, the marginally to optimally suitable area will also increase. As the suitable area for both the hosts and the parasites will overall increase, Schoener’s D, indicating the relative overlap in suitable area, will change only marginally. However, the absolute area of potential niche overlap may increase up to six-fold by 2070. Overall, our results indicate that larger parts of the globe will become suitable for both host species, but that they could also suffer from Cuscuta parasitism in larger parts of their suitable ranges.

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Metabolic and functional distinction of the Smicronyx sp. galls on Cuscuta campestris

Zagorchev

Albanova

Tosheva

et al. 2018

Planta

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The weevil gall contains two distinct regions, differing in hydrolytic and antioxidant enzymes activity and profiles, which is also functionally distinct from the non-infected Cuscuta stems. Weevils of the genus Smicronyx are gall-forming insects, widely distributed on parasitic flowering plants of the genus Cuscuta. Thus, they are considered epiparasites and potential method for biological control of their agriculturally harmful hosts. Although several reports on gall formation in Cuscuta spp. exist, the metabolic and functional changes, occurring in the gall, remained largely unknown. Smicronyx sp. galls, collected from a wild Cuscuta campestris population, were dissected into two distinct regions, inner and outer cortex, defined by the higher chlorophyll content of the inner cortex. Based on hydrolytic and antioxidant enzymes activity and isoenzymatic profiles as analyzed after electrophoretic separation, we suggested that the gall differs in its metabolic activity from the non-infected plant tissue. While the outer cortex serves as a region of nutrient storage and mobilization, the inner cortex is directly involved in larvae nutrition. The increase in metabolic activity resulted in significantly increased superoxide dismutase activity in the gall, while several other antioxidant enzymes diminished. The present research offers new insights into the functionally differing regions of Smicronyx galls and the metabolic changes, induced in C. campestris in result of the gall formation.

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Control of Smoothseed Alfalfa Dodder (Cuscuta approximata) in Alfalfa (Medicago sativa)

Cited by 4 publications

References 9 publications

The Effect of Glyphosate on Anatomical and Physiological Features of Alfalfa Infested with Field Dodder (Cuscuta campestris Yunck.)

The Effect of Glyphosate on Anatomical and Physiological Features of Alfalfa Infested with Field Dodder (Cuscuta campestris Yunck.)

Implications of climate change for environmental niche overlap between fiveCuscutapest species and their two main Leguminosae host crop species

Metabolic and functional distinction of the Smicronyx sp. galls on Cuscuta campestris

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