ArticleFrontiers in plant science2014
Polyphenol oxidase affects normal nodule development in red clover (Trifolium pratense L.).
Article in Frontiers in plant science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 31 citations in OpenAlex.
- Fine mapping and identification of the geneFrontiers in plant science · 2025Article
- The PPO family in Nicotiana tabacum is an important regulator to participate in pollination.BMC plant biology · 2024Article
- Phenoloxidases: catechol oxidase - the temporary employer and laccase - the rising star of vascular plants.Horticulture research · 2023Article
- Leaf Functional Traits of Invasive Grasses Conferring High-Cadmium Adaptation Over Natives.Frontiers in plant science · 2022Article
- Red Clover HDT, a BAHD Hydroxycinnamoyl-Coenzyme A:L-3,4-Dihydroxyphenylalanine (L-DOPA) Hydroxycinnamoyl Transferase That Synthesizes Clovamide and OtherFrontiers in plant science · 2021Article
- The phyto-impact of fluazinam fungicide on cellular structure, agro-physiological, and yield traits of pepper and eggplant crops.Environmental science and pollution research international · 2020Article
- Synchrotron micro-X-ray fluorescence shows sulfur accumulation in the middle cortex of NProtoplasma · 2019Article
- Induction of nodD Gene in a Betarhizobium Isolate, Cupriavidus sp. of Mimosa pudica, by Root Nodule Phenolic Acids.Current microbiology · 2016Article
- Polyphenol oxidase-mediated protection against oxidative stress is not associated with enhanced photosynthetic efficiency.Annals of botany · 2015Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Polyphenol oxidase (PPO) may have multiple functions in tissues depending on its cellular or tissue localization. Here we use PPO RNAi transformants of red clover (Trifolium pratense) to determine the role PPO plays in normal development of plants, and especially in N2-fixing nodules. In red clover, PPO was not essential for either growth or nodule production, or for nodule function in plants grown under optimal, N-free conditions. However, absence of PPO resulted in a more reduced environment in all tissues, as measured by redox potential, and caused subtle developmental changes in nodules. Leaves and, to a lesser extent nodules, lacking PPO tended to accumulate phenolic compounds. A comparison of nodules of two representative contrasting clones by microscopy revealed that nodules lacking PPO were morphologically and anatomically subtly altered, and that phenolics accumulated in different cells and tissues. Developing nodules lacking PPO were longer, and there were more cell layers within the squashed cell layer (SCL), but the walls of these cells were less thickened and the cells were less squashed. Within the N2-fixing zone, bacteroids appeared more granular and were less tightly packed together, and were similar to developmentally compromised bacteroids elicited by catalase mutant rhizobia reported elsewhere.
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Registered trials
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