Zinc deficiency alters soybean susceptibility to pathogens and pests

Julian Helfenstein, Michelle L. Pawlowski, Curtis B. Hill, Jessica Stewart, Doris Lagos-Kutz, Charles Roger Bowen, Emmanuel Frossard, Glen L. Hartman

Research output: Contribution to journalArticle

Abstract

Inadequate plant nutrition and biotic stress are key threats to current and future crop yields. Zinc (Zn) deficiency and toxicity in major crop plants have been documented, but there is limited information on how pathogen and pest damage may be affected by differing plant Zn levels. In our study, we used soybean plants as a host, a soybean pest, and three soybean pathogens to determine whether plant Zn levels change pest and disease assessments. Two soybean cultivars were grown in sand culture with a soluble nutrient solution that ranged from Zn-deficient to toxic. Detached leaves from these plants were either inoculated with Aphis glycines, the soybean aphid, Xanthomonas axonopodis pv. glycines, a bacterium that causes bacterial pustule, Sclerotinia sclerotiorum, the necrotrophic fungus responsible for stem rot, or Phakopsora pachyrhizi, a biotrophic obligate pathogen that causes soybean rust. There were significant (P < 5%) effects on aphid colonization, positive counts for bacterial pustule, S. sclerotiorum leaf area affected, and numbers of rust lesions associated with the Zn treatments. Plants grown with the physiologically optimal levels of Zn (2 μM) had less (P < 5%) soybean aphids cm-2 leaflet than plants grown without Zn, at 0.1× Zn (0.2 μM), or at 100× Zn fertilization (200 μM). Plants grown with the normal fertilization of Zn or 100× Zn had fewer (P < 5%) positive counts for bacterial pustule and less lesion area affected by S. sclerotiorum than plants grown without Zn or fertilized with 0.1× Zn. For soybean rust, plants grown with the physiologically optimal fertilization of Zn or 100× Zn had higher (P < 5%) lesions cm-2 on leaflets from plants grown without Zn or fertilized with 0.1× Zn. These results indicate different Zn nutrition levels in soybean significantly affected aphid and disease development.

Original languageEnglish (US)
Pages (from-to)896-903
Number of pages8
JournalJournal of Plant Nutrition and Soil Science
Volume178
Issue number6
DOIs
StatePublished - Dec 1 2015

Fingerprint

soybean
pathogen
zinc
pests
soybeans
pathogens
Aphis glycines
aphid
lesions (plant)
Sclerotinia sclerotiorum
rust disease
lesion
soybean rust
pest
plate count
Xanthomonas axonopodis pv. glycines
nutrition
Aphidoidea
pest damage
Phakopsora pachyrhizi

Keywords

  • Aphis glycines
  • Glycine max
  • Phakopsora pachyrhizi
  • Sclerotinia sclerotiorum
  • Xanthomonas axonopodis

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

Cite this

Helfenstein, J., Pawlowski, M. L., Hill, C. B., Stewart, J., Lagos-Kutz, D., Bowen, C. R., ... Hartman, G. L. (2015). Zinc deficiency alters soybean susceptibility to pathogens and pests. Journal of Plant Nutrition and Soil Science, 178(6), 896-903. https://doi.org/10.1002/jpln.201500146

Zinc deficiency alters soybean susceptibility to pathogens and pests. / Helfenstein, Julian; Pawlowski, Michelle L.; Hill, Curtis B.; Stewart, Jessica; Lagos-Kutz, Doris; Bowen, Charles Roger; Frossard, Emmanuel; Hartman, Glen L.

In: Journal of Plant Nutrition and Soil Science, Vol. 178, No. 6, 01.12.2015, p. 896-903.

Research output: Contribution to journalArticle

Helfenstein, J, Pawlowski, ML, Hill, CB, Stewart, J, Lagos-Kutz, D, Bowen, CR, Frossard, E & Hartman, GL 2015, 'Zinc deficiency alters soybean susceptibility to pathogens and pests', Journal of Plant Nutrition and Soil Science, vol. 178, no. 6, pp. 896-903. https://doi.org/10.1002/jpln.201500146
Helfenstein J, Pawlowski ML, Hill CB, Stewart J, Lagos-Kutz D, Bowen CR et al. Zinc deficiency alters soybean susceptibility to pathogens and pests. Journal of Plant Nutrition and Soil Science. 2015 Dec 1;178(6):896-903. https://doi.org/10.1002/jpln.201500146
Helfenstein, Julian ; Pawlowski, Michelle L. ; Hill, Curtis B. ; Stewart, Jessica ; Lagos-Kutz, Doris ; Bowen, Charles Roger ; Frossard, Emmanuel ; Hartman, Glen L. / Zinc deficiency alters soybean susceptibility to pathogens and pests. In: Journal of Plant Nutrition and Soil Science. 2015 ; Vol. 178, No. 6. pp. 896-903.
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