filamentous fungi of the genus Colletotrichum
and its teleomorph Glomerella
are considered major plant pathogens
worldwide. They cause significant economic
damage to crops in tropical, subtropical,
and temperate regions. Cereals,
legumes, ornamentals, vegetables, and fruit
trees may be seriously affected by the
pathogen (3). Although many cultivated
fruit crops are infected by Colletotrichum
species, the most significant economic
losses are incurred when the fruiting stage
is attacked. Colletotrichum species cause
typical disease symptoms known as anthracnose,
characterized by sunken necrotic
tissue where orange conidial masses
are produced. Anthracnose diseases appear
in both developing and mature plant tissues
(4). Two distinct types of diseases occur:
those affecting developing fruit in the field
(preharvest) and those damaging mature
fruit during storage (postharvest). The
ability to cause latent or quiescent infections
has grouped Colletotrichum among
the most important postharvest pathogens.
Species of the pathogen appear predominantly
on aboveground plant tissues; however,
belowground organs, such as roots
and tubers, may also be affected.
In this article, we deal in particular with
methods used to identify and characterize
Colletotrichum species and genotypes from
almond, avocado, and strawberry, as examples,
using traditional and molecular
tools. The three pathosystems chosen represent
different disease patterns of fruitassociated
Colletotrichum.
filamentous fungi of the genus Colletotrichum
and its teleomorph Glomerella
are considered major plant pathogens
worldwide. They cause significant economic
damage to crops in tropical, subtropical,
and temperate regions. Cereals,
legumes, ornamentals, vegetables, and fruit
trees may be seriously affected by the
pathogen (3). Although many cultivated
fruit crops are infected by Colletotrichum
species, the most significant economic
losses are incurred when the fruiting stage
is attacked. Colletotrichum species cause
typical disease symptoms known as anthracnose,
characterized by sunken necrotic
tissue where orange conidial masses
are produced. Anthracnose diseases appear
in both developing and mature plant tissues
(4). Two distinct types of diseases occur:
those affecting developing fruit in the field
(preharvest) and those damaging mature
fruit during storage (postharvest). The
ability to cause latent or quiescent infections
has grouped Colletotrichum among
the most important postharvest pathogens.
Species of the pathogen appear predominantly
on aboveground plant tissues; however,
belowground organs, such as roots
and tubers, may also be affected.
In this article, we deal in particular with
methods used to identify and characterize
Colletotrichum species and genotypes from
almond, avocado, and strawberry, as examples,
using traditional and molecular
tools. The three pathosystems chosen represent
different disease patterns of fruitassociated
Colletotrichum.
การแปล กรุณารอสักครู่..
