Soil and Genotype Shape the Sugarcane Phytobiome for Enhanced Environmental Adaptation.
Ferreti JD, Ribeiro B, Bonetti JA, Camargo LEA, Creste S
Summary
PubMedWhy it matters This matters because understanding how plants naturally recruit helpful soil microbes could lead to smarter farming practices that reduce fertilizer use — meaning cheaper, more sustainable food production for crops like the sugar in your kitchen.
Sugarcane plants don't just passively sit in soil — they actively invite specific helpful bacteria to live inside their tissues, and which bacteria they invite depends on both their genes and the soil around them. One sugarcane variety that thrives in poor soil was especially good at recruiting bacteria that help with nutrient absorption and stress tolerance when grown in sandy, low-nutrient ground. This opens the door to breeding crops that work with their natural microbial partners to stay healthy with less human intervention.
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Scientists discovered that sugarcane plants actively recruit different communities of beneficial soil bacteria depending on both the type of soil they grow in and their own genetic makeup, helping them adapt to nutrient-poor conditions.
Key Findings
A low-fertility-adapted sugarcane variety (IACSP-5503) recruited diverse beneficial bacteria including nitrogen-fixing and hormone-producing species when grown in sandy loam soil, while a less-adapted variety showed reduced bacterial diversity and signs of nutrient stress.
In clay-rich soil, the less-adapted variety (IACSP-6007) compensated by recruiting a different set of beneficial bacteria linked to nutrient acquisition and disease defense, suggesting soil type can partially offset genetic limitations.
Both sugarcane varieties grown in clayey soil showed increased expression of defense and antioxidant genes, indicating the soil itself can prime plants to be more stress-resilient — a finding drawn from transcriptome analysis of buds grown over 10 months.
Abstract Preview
Soil properties critically shape sugarcane growth and its microbiome, yet their influence on gene expression remains unclear. We investigated the combined effects of soil type (clayey and sandy loa...
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Sugarcane or sugar cane is a species of tall, perennial grass that is used for sugar production. The plants are 2–7 m tall with stout, jointed, fibrous stalks that are rich in sucrose, which accumulates in the stalk internodes. Sugarcanes belong to the grass family, Poaceae, an economically impor...