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Influence of <i>Bradyrhizobium japonicum</i> and Phosphorus on Micronutrient Uptake in Cowpea. A Case Study of Zinc (Zn), Iron (Fe), Copper (Cu) and Manganese (Mn)

“…There was also a significant reduction in the pod uptake of Zn in the screen house, while for the field experiment there was a significant decrease in the pod uptake of Zn and Fe following supplementation of phosphorus. Similar to our findings [36,37] observed that an increase in P supply lowered Zn concentration in Phaseolus vulgaris, and attributed this effects to a dilution effect of plant growth. Generally, this study showed that phosphorus supplementation significantly reduced the uptake of Zn in all plant parts tested for both screen house and field experiments.…”

Comprehensive study of excess phosphate response reveals ethylene mediated signaling that negatively regulates plant growth and development

“…Earlier reports showed that the high P condition in soil creates Fe and Zn deficiency in plants 19, 20, 47, 48 . In our earlier studies, we have attempted to identify genes modulated in crop plants like sunflower in excess P i condition but obtained a little information 29 .…”

“…However, no study has been taken up to investigate the plant responses under a wide range of P regime in detail. Furthermore, unlike the well-documented mechanism of heavy metal toxicity 18 , there is no information available about the toxicity of phosphorus in plants except few reports showing Fe or Zn deficiency under high P condition 19, 20 . Therefore, to design an effective strategy for P acquisition, accumulation, and tolerance, we need to understand and characterize the plant responses under excess phosphate conditions.…”

Iron and zinc levels in Vigna unguiculata (L.) Walp under varying phosphorus and fixed nitrogen treatment conditions

“…Unfortunately, high level of phosphate fertilization of soil has been reported to have negative effect on the levels of Zn in sorghum (Buerkert, Haake, & Ruckwied, 1998) and other cereals. Earlier reports (Zhu, Smith, & Smith, 2001;Gianquinto, Abu-Rayyan, Tola, Piccotino, & Pezzarossa, 2000;Mandal & Mandal, 1990;Haldar & Mandal, 1981;Orabi, Mashadi, Abdallah, & Morsy, 1981;Takkar, Mann, Bansal, Randhawa, & Singh, 1975), and more recently Ova, Kutman, Ozturk, and Cakmak (2015) and Drissi, AïtHoussa, Bamouh, Coquant, and Benbella (2015) have all drawn negative correlations between P fertilization and Zn levels in various cereal (wheat and maize) and leguminous plants. Benvindo, Prado, Nóbrega, and Flores (2014) even reported a corresponding decrease in foliar Zn levels with increase in P levels.There is also the well-documented issue of arbuscular mycorrhizal fungi (AMF) that greatly enhance P uptake in low P soil.…”