R. Sasidharan

Understanding the phytochemical diversity of plants: Quantification, variation and ecological function

This paper examines phytochemical diversity (chemodiversity) in plants, discussing its ecological relevance, reviewing methodological practices, and outlining future research directions.

Phylotranscriptomics provides a treasure trove of flood tolerance mechanisms in the Cardamineae tribe

The paper uses comparative transcriptomics to identify flood tolerance mechanisms in four Cardamineae tribe species, finding distinct strategies between Rorippa and Cardamine species.

MEDIATOR SUBUNIT 25 modulates ERFVII-controlled hypoxia responses in Arabidopsis

This study identifies AtMED25 as a key mediator of ERFVII-controlled hypoxia responses in Arabidopsis, showing its role in transcriptional regulation under low-oxygen conditions.

Flower visitor groups show differential responses to individual and plot-level chemodiversity with consequences for plant fitness

This study examines how individual and plot-level chemodiversity affects pollinator and florivore visits and plant fitness in Tanacetum vulgare.

Chemodiversity in flowers of Tanacetum vulgare has consequences on a florivorous beetle

This study shows that different chemotypes of Tanacetum vulgare, defined by leaf terpenoids, also have distinct floral and pollen chemotypes that influence beetle preference and performance.

Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity

This study assesses the reproducibility of plant volatile organic compound (VOC) analysis across five laboratories using Tanacetum vulgare, finding high variation in VOC profiles and JA-induced changes.

Floral volatiles evoke partially similar responses in both florivores and pollinators and are correlated with non-volatile reward chemicals

The paper compares how pollinators and florivores respond to floral volatiles and non-volatile chemicals, finding florivores detect more volatiles and some compounds are attractive to both groups.

Differential leaf flooding resilience in Arabidopsis thaliana is controlled by age-dependent ORESARA1 activity

This paper shows that in flooded Arabidopsis, ethylene triggers senescence only in old leaves through ORE1 activation, despite systemic ethylene accumulation.

Arabidopsis latent virus 1, a comovirus widely spread in Arabidopsis thaliana collections

The paper identifies ArLV1, a comovirus infecting Arabidopsis thaliana without visible symptoms, and shows its widespread presence in natural and laboratory collections.

Ethylene augments root hypoxia tolerance through amelioration of reactive oxygen species and growth cessation

This study shows ethylene improves root hypoxia tolerance by reducing reactive oxygen species and inducing growth cessation in Arabidopsis thaliana.

Effects of sub-lethal single, simultaneous, and sequential abiotic stresses on phenotypic traits of Arabidopsis thaliana

This study examines how sub-lethal abiotic stresses affect 12 phenotypic traits in Arabidopsis thaliana, finding additive and interactive effects across different stress combinations and accessions.

Towards increased shading potential: a combined phenotypic and genetic analysis of rice shoot architecture

Through screening a rice diversity panel for variation in shoot architecture, we identified traits corresponding to plant shading potential and their genetic constituents.

Ethylene-mediated nitric oxide depletion pre-adapts plants to hypoxia stress

The paper shows that ethylene-mediated nitric oxide depletion pre-adapts plants to hypoxia stress by stabilizing ERFVII transcription factors.

Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots

This study shows cytokinin signaling in lateral roots acts as an anti-gravitropic signal, counteracting auxin's effect to promote radial root expansion in Arabidopsis.

A stress recovery signaling network for enhanced flooding tolerance in Arabidopsis thaliana

This paper identifies a signaling network in Arabidopsis thaliana that enhances flooding tolerance by regulating ROS homeostasis, stomatal aperture, and chlorophyll degradation during recovery.

FEMALE CHEMICAL WARFARE DRIVES FITNESS EFFECTS OF GROUP SEX RATIO

The paper investigates how female chemical warfare via quinones affects fitness in flour beetles with skewed sex ratios, showing non-sexual competition reduces female fecundity in female-biased groups.