Journal article
Differential plasticity responses of contrasting common bean (Phaseolus vulgaris L.) genotypes reveals significant influence of phosphate solubilizing bacteria on root architecture and leaf phosphorus
Discover Plants, Vol.3(1), 279
2026
Abstract
Phosphate-solubilizing bacteria (PSB) are known to enhance phosphorus (P) availability in low-P soils, yet genotype-specific root architectural responses to PSB remain poorly understood in common bean. In the present study 20 diverse bean genotypes were evaluated for laboratory and greenhouse scored root traits under PSB inoculated (PSB +) and PSB uninoculated () condition, to get useful insights into the role of bacterial inoculation on root architectural plasticity for improved P acquisition. Wide variation was observed for lab and greenhouse scored root and shoot traits. Basal root growth angle ranged from 28.840 to 54.680, while as basal root number ranged from 7.67 to 13.23. Bacterial inoculation significantly affected shoot and root traits with largest increase observed in shoot biomass, followed by leaf phosphorus, root biomass, and plant height. Under PSB + condition, leaf phosphorus was significantly correlated with root depth, root biomass, root shoot ratio and root dry weight. Number of leaves and shoot biomass were significantly correlated plant root depth and root biomass. In case of principal component analysis (PCA) for gross root and shoot traits, first two PCs accounted for 64.80% and 59.20% of variation under PSB + and PSB − conditions respectively. Mean Response Quotient (RQ), that is the ratio of trait means in inoculated and uninoculated conditions, averaged across all traits as a ratio of trait value in PSB + and PSB − conditions, had a mean value of 1.41, with range of 0.97–2.29. Root scanning of contrasting genotypes revealed that fine root area in upper 30 cm was modulated under PSB inoculation leading to higher leaf P content in genotype WB-216. The study revealed that common bean genotypes respond differently to soil P via root architectural modulations and that PSB significantly impacts root architecture.
Details
- Title
- Differential plasticity responses of contrasting common bean (Phaseolus vulgaris L.) genotypes reveals significant influence of phosphate solubilizing bacteria on root architecture and leaf phosphorus
- Authors/Creators
- Nisha Mashee - Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirSamreen Fatima - Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirMelle Sugandha - Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirZahoor A. Baba - Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirR. R. Mir - Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirM. Anwar Khan - Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirSajad Majeed Zargar - Sher-e-Kashmir University of Agricultural Sciences and Technology of KashmirP. V. Vara Prasad - Kansas State UniversityParvaze A. Sofi - Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir
- Publication Details
- Discover Plants, Vol.3(1), 279
- Publisher
- Springer Nature Singapore
- Identifiers
- 991005903581307891
- Copyright
- © The Author(s) 2026
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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