RT Book, Section
T1 Metabolic Responses of Sugarcane Plants Upon Different Plant–Pathogen Interactions
A1 Legaz González, María Estrella
A1 Sánchez Elordi, Elena
A1 Santiago, Rocío
A1 de Armas, Roberto
A1 Fontaniella, Blanca
A1 Millanes, Ana M.
A1 Blanch Rojo, María
A1 Vicente Córdoba, Carlos
A2 Ahmad, Parvaiz
A2 Ahanger, Mohammad Abass
A2 Singh, Vijay Pratap
A2 Tripathi, Durgesh Kumar
A2 Alam, Pravej
A2 Alyemeni, Mohammed Nasser
AB Sugarcane plants, subjected to environmental stress, mechanical injuries, or infection by pathogens, produce glycoproteins containing heterofructans, composed of a fairly extensive domain of β-1,2-fructofuranoside chains in which galactitol units intercalated. They could act as signaling molecules for cell recognition, able to discriminate between beneficial endophytes and bacterial or fungal pathogens.Infection mechanisms and disease progress are very different for different pathogens. Xanthomonas albilineans produces a gum, a xanthanlike polymer, which obliterates the xylem elements producing desiccation and leaf yellowing, and this disease has been termed “leaf scald.” Sporisorium scitamineum, on the other hand, uses stomata to penetrate the host tissues or secretes hydrolytic enzymes of cell wall polymers, which enable mycelial entry through any point on the surface of the plant. Pathogen spores also secrete quorum signals that increase the number of cells in the inoculum. However, some of the glycoproteins produced by infected cane act as false quorum signals. Then the probability of inhibiting germination increases by increasing the aggregation of the teliospores caused by noxious false signals. Alternatively, infection of sugarcane plants by smut teliospores elicits lignification by activating monolignol production. Lignin deposits increase in the cell walls of the infected plant and impede the entry of the pathogen.Teliospores must displace on the wet surface of the plant, either to find a natural way of entry or to be grouped by the effect of quorum sensing. The displacement occurs by successive contractions and relaxations of the actomyosin complex that composes the cytoskeleton.
PB Academic Press. Elsevier
SN 9780128126905
SN 9780128126899
YR 2018
FD 2018
LK https://hdl.handle.net/20.500.14352/113804
UL https://hdl.handle.net/20.500.14352/113804
LA eng
NO Legaz, M. E., Sánchez-Elordi, E., Santiago, R., de Armas, R., Fontaniella, B., Millanes, A. M., Blanch, M., & Vicente, C. (2018). Chapter 13—Metabolic Responses of Sugarcane Plants Upon Different Plant–Pathogen Interactions. En P. Ahmad, M. A. Ahanger, V. P. Singh, D. K. Tripathi, P. Alam, & M. N. Alyemeni (Eds.), Plant Metabolites and Regulation Under Environmental Stress (pp. 241-280). Academic Press. https://doi.org/10.1016/B978-0-12-812689-9.00013-3
DS Docta Complutense
RD 6 abr 2025