Effects of shading on growth and photosynthetic metabolism in Dipteryx alata Vogel seedlings under flooding

Linné, Jéssica Aline; Jesus, Maílson Vieira; Lima, Vânia Tomazelli de; Reis, Lucas Coutinho; Dresch, Daiane Mugnol; Scalon, Silvana de Paula Quintão; Santos, Cleberton Correia

doi:10.1007/s40415-021-00735-7

Cited by 6 publications

(1 citation statement)

References 38 publications

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“…According to Figure 6, shading suppressed ABC protein expression while it inhibited Pb transfer. This might be because shading inhibited plant photosynthesis and ATP synthesis [78][79][80]. The compound exchange driven by ABC proteins requires the use of energy released by ATP hydrolysis [81].…”

Section: Effect Of Shading and Pb On Related Genementioning

confidence: 99%

Pb Transfer Preference of Arbuscular Mycorrhizal Fungus Rhizophagus irregularis in Morus alba under Different Light Intensities

Ren

Zhang

Jin

et al. 2022

JoF

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Arbuscular mycorrhizal (AM) fungi can improve the lead (Pb) tolerance of host plants and accumulate intensive Pb in mycorrhizal roots. However, the detailed contribution of AM fungal extraradical hyphae to the plants’ Pb uptake remains unknown. In this study, mulberry (Morus alba) colonized by the AM fungus (Rhizophagus irregularis) with light treatments were linked by fungal extraradical hyphae using a three-compartment system (pot test), and their differences in responding to Pb application were compared. Shading inhibited mulberry photosynthesis and the growth of mulberry. In this study, Pb application did not affect the colonization of R. irregularis when symbiosis had already formed as the root was not exposed to Pb during the colonization and formation of the AM fungal hyphae network. The R. irregularis preferred to transfer more Pb to the unshaded mulberry than to the shaded mulberry, a condition capable of providing more C supply for fungal survival than to low-light mulberry. The Pb transferred through the mycorrhizal pathway to mulberry had low mobility and might be compartmented in the root by R. irregularis until exceeding a threshold. The relatively high expressions of MaABCG16 with high Pb concentrations in plants suggest that MaABCG16 might play an important role in Pb translocation.

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