Phosphite (Phi) and phosphate (Pi) share the same root uptake system, but Phi acts as a biostimulant that modulates plant growth and disease resistance in a species‑ and Pi‑dependent manner. In Arabidopsis, Phi induces hypersensitive‑like cell death and enhances resistance to Plectosphaerella cucumerina, while in rice it counteracts Pi‑induced susceptibility to Magnaporthe oryzae and Fusarium fujikuroi, accompanied by extensive transcriptional reprogramming.
Full-length transcriptome atlas of Panax vietnamensis var. fuscidiscus reveals novel genes and alternative splicing in tissue-specific biosynthesis of ocotillol-type saponins
The study generated the first tissue‑specific full‑length transcriptome atlas for Panax vietnamensis var. fuscidiscus using combined PacBio SMRT and Illumina RNA‑Seq, uncovering 281,468 transcripts and 8,089 novel genes. Twenty‑one candidate genes in triterpenoid saponin biosynthesis were identified, along with extensive alternative splicing events that appear to modulate tissue‑specific production of ocotillol‑type ginsenosides.
The study examines how the SnRK1 catalytic subunit KIN10 integrates carbon availability with root growth regulation in Arabidopsis thaliana. Loss of KIN10 reduces glucose‑induced inhibition of root elongation and triggers widespread transcriptional reprogramming of metabolic and hormonal pathways, notably affecting auxin and jasmonate signaling under sucrose supplementation. These findings highlight KIN10 as a central hub linking energy status to developmental and environmental cues in roots.
The study examined how white lupin (Lupinus albus) cotyledons mobilize nitrogen and minerals during early seedling growth under nitrogen‑deficient conditions, revealing that 60 % of stored proteins degrade within eight days and are redirected to support development. Proteomic analyses showed dynamic shifts in nutrient transport, amino acid metabolism, and stress responses, and premature cotyledon removal markedly impaired growth, highlighting the cotyledon's essential role in nutrient supply and transient photosynthetic activity.